{
  "data": {
    "a": {
      "slug": "pplx-decider",
      "name": "pplx-decider",
      "vendor": "Perplexity",
      "vendorUrl": "https://www.perplexity.ai/",
      "kind": "model",
      "category": "decision-models",
      "summary": "pplx-decider is Perplexity's 27B decision model, a fine-tune of Qwen3.8-27B. It answers yes or no, choice and score questions about text, JSON and images with probabilities, through Perplexity's hosted Decisions API or open weights on Hugging Face.",
      "url": "https://www.anchorterminal.com/tools/pplx-decider",
      "markdownUrl": "https://www.anchorterminal.com/tools/pplx-decider.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/pplx-decider.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/pplx-decider.json",
      "repo": "https://huggingface.co/perplexity-ai/pplx-decider-v1.2",
      "license": "Apache-2.0 for the published weights and inference code. The hosted Decisions API is a proprietary service",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://api.perplexity.ai/v1/decisions",
      "packages": [],
      "auth": "api-key",
      "authNotes": "Hosted API. Bearer Perplexity API key in the `Authorization` header. A key sent in `x-api-key` returns 401. Keys are created in the API console after a project exists, are shown once, and can be generated and revoked through `/generate_auth_token` and `/revoke_auth_token`. No per-key scopes were found. The official Python and TypeScript SDKs take the same key. Weights. The Hugging Face repository is public and not gated, although its model card still says to authenticate with a Hugging Face token.",
      "pricing": "usage",
      "pricingNotes": "$0.02 per million input tokens on Perplexity's Decisions API for `pplx-decider-v1.2`, and for the old names `pplx-decider-v1.1-27b` and `pplx-decider-v1-27b`, which now select v1.2. Output tokens are free and there is no per-request fee. The 4B `pplx-decider-flash-v1.2` is listed separately at $0.01. Usage draws on prepaid credits, and the billing guide asked for a credit card on 9 October 2026. No free allowance was found. The weights are free to download and need a CUDA GPU with about 52 GiB for BF16 weights.",
      "priceSummary": "Pay per use",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the Decisions API guide, the reference, the pricing page or llms.txt, read on 17 October 2026.",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": null,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-10-17"
      },
      "docsUrl": "https://docs.perplexity.ai/docs/decisions/quickstart",
      "llmsTxt": "https://docs.perplexity.ai/llms.txt",
      "openapi": "https://docs.perplexity.ai/openapi.json",
      "capabilities": [
        "inference.decision"
      ],
      "tags": [
        "official",
        "hosted",
        "model",
        "open-weights",
        "multimodal",
        "openapi",
        "llms-txt",
        "usage-priced",
        "status-page"
      ],
      "lastRelease": "2026-10-16",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 68.1,
        "grade": "B",
        "agentReady": false,
        "rank": 249,
        "ranked": true,
        "rankOf": 1133,
        "categoryRank": 5,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 83,
          "maintenance": 65,
          "payments": 25,
          "reliability": 66,
          "schema": 89,
          "security": 68,
          "transparency": 71
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-17"
        },
        "negative": 0,
        "verdict": "The hosted Decisions API now serves v1.2, with an OpenAPI description, typed questions, Python and TypeScript SDK methods and $0.02 per million input tokens, and the weights are public under Apache-2.0. Requests naming v1.1 or v1 are now answered by v1.2 with no notice period, and the response does not say which version answered.",
        "bestFor": "High-volume classification, routing and rubric scoring over text and images where a team wants a low hosted price, several related questions per item and the option to run the same weights itself.",
        "strengths": [
          "Weights for v1.2 are public on Hugging Face under Apache-2.0, with the `pplx_decider` inference package in the repository",
          "One request takes up to 128 questions about one `state`, read and billed once, mixing `noul`, `choice` and `score`",
          "$0.02 per million input tokens with free output and no per-request fee, published without a login",
          "OpenAPI 3.1.0 description, llms.txt, Markdown pages and `client.decisions.create` in the official Python and TypeScript SDKs",
          "Rate limit stated as 10 requests a second per organisation, with `Retry-After` on 429 and `x-ratelimit-*` headers"
        ],
        "weaknesses": [
          "Requests naming `pplx-decider-v1.1-27b` or `pplx-decider-v1-27b` are answered by v1.2 since 16 October 2026, with no notice period",
          "The response echoes the model name sent, so a caller using an alias or an old name cannot see which version answered",
          "Grouped questions change each other's answers, and Perplexity's figures show grouping costing up to 4.8 points on candidate-ranking tasks",
          "The FAQ says API data is not retained, while the Privacy and Security page says zero data retention is not the default",
          "An image over 2,048 tiles is not rejected. The request waits about a minute and returns 504"
        ],
        "agentNotes": [
          "Send `Authorization: Bearer`. A key in `x-api-key` returns 401 on this endpoint.",
          "Pin `pplx-decider-v1.2` and log it with each result. Old names and aliases route to newer versions, and the response echoes the name sent.",
          "Revalidate thresholds set on v1.1. The v1.2 card says it gives different answers to v1.1-style requests.",
          "Group questions that are facets of one decision. Send independent candidates, such as documents or tools, in separate requests.",
          "Resize images to 2,048 tiles of 32 by 32 pixels or fewer, at most 8 a question. Larger images end in a 504 after about a minute.",
          "For the weights, use the repository's `pplx_decider` package. The card says default causal inference does not reproduce the checkpoint."
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 4,
        "avgRating": 3.5,
        "history": [
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            "basis": "public evidence",
            "confidence": "medium",
            "grade": "B",
            "methodology": "0.4",
            "pending": [
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              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 68.1
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        ],
        "editorialScores": {
          "ergonomics": 83,
          "maintenance": 65,
          "payments": 25,
          "reliability": 66,
          "schema": 89,
          "security": 68,
          "transparency": 60
        },
        "provenanceScore": 82
      },
      "connect": {
        "http": "curl -X POST https://api.perplexity.ai/v1/decisions \\\n  -H \"Authorization: Bearer $PERPLEXITY_API_KEY\" \\\n  -H \"Content-Type: application/json\" \\\n  -d '{\"model\":\"pplx-decider-v1.2\",\"state\":\"The headphones sound great, but the battery stopped charging after two weeks.\",\"questions\":{\"defect\":{\"type\":\"noul\",\"instructions\":\"Does the review report a product defect?\"}}}'"
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      "letme": {
        "capability": "https://letme.dev/inference.decision",
        "tool": "https://letme.dev/pplx-decider"
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      "sameCompany": [
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      "area": "models",
      "unitPrices": [
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          "item": "Decision input",
          "unit": "1m-tokens",
          "usd": 0.02,
          "note": "`pplx-decider-v1.2`, and the old v1.1 and v1 names, which now select it. State, questions and images count as input."
        },
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          "item": "Decision output",
          "unit": "1m-tokens",
          "usd": 0,
          "note": "Output tokens are free. No per-request fee."
        }
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        "legalEntity": "Perplexity AI, Inc.",
        "domain": "perplexity.ai",
        "domainRegistered": "",
        "endpointOnVendorDomain": true,
        "terms": "https://www.perplexity.ai/hub/legal/perplexity-api-terms-of-service",
        "privacy": "https://www.perplexity.ai/hub/legal/privacy-notice",
        "statusPage": "https://status.perplexity.com/",
        "changelog": "https://docs.perplexity.ai/docs/resources/changelog",
        "securityTxt": "valid",
        "checked": "2026-10-17",
        "notes": [
          "The Perplexity API Terms of Service (last updated 23 January 2026) and the Data Processing Addendum (13 August 2026) name Perplexity AI, Inc. and California law. www.perplexity.ai served both pages on 17 October 2026, after answering with a bot check (403) on 9 October.",
          "The API terms name the Sonar and Agentic Research APIs and do not name the Decisions API. The privacy notice (8 July 2026) says it does not apply to data collected through the API, which the DPA governs.",
          "www.perplexity.ai/.well-known/security.txt is valid until 31 December 2027 and links a security page that names a public vulnerability disclosure programme and a private bug bounty on Bugcrowd.",
          "The status page lists Website, App, Computer and API components, with no Decisions component.",
          "The changelog dates entries by month. The three Decisions entries are under October 2026.",
          "Domain registration was not checked."
        ],
        "score": 82
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/pplx-decider.json",
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        "vendorStatus": {
          "page": "https://status.perplexity.com",
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          "expires": "2027-12-31T00:00:00Z",
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          "url": "https://docs.perplexity.ai/llms.txt",
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            "fingerprint": "c5b21d4b2d0a"
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        "updatedAt": "2026-10-18T00:31:03.751234592Z"
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    },
    "answer": "pplx-decider and pplx-decider-flash score within a point of each other on agent readiness, 68.1 (B) and 67.9 (B).",
    "b": {
      "slug": "pplx-decider-flash",
      "name": "pplx-decider-flash",
      "vendor": "Perplexity",
      "vendorUrl": "https://www.perplexity.ai/",
      "kind": "model",
      "category": "decision-models",
      "summary": "pplx-decider-flash is Perplexity's 4B decision model, a Qwen3.5-4B fine-tune distilled from the 27B pplx-decider. It answers yes or no, choice and score questions about text, JSON and images with probabilities, through the hosted Decisions API or open weights.",
      "url": "https://www.anchorterminal.com/tools/pplx-decider-flash",
      "markdownUrl": "https://www.anchorterminal.com/tools/pplx-decider-flash.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/pplx-decider-flash.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/pplx-decider-flash.json",
      "repo": "https://huggingface.co/perplexity-ai/pplx-decider-flash-v1.2",
      "license": "Apache-2.0 for the published weights and inference code. The hosted Decisions API is a proprietary service",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://api.perplexity.ai/v1/decisions",
      "packages": [],
      "auth": "api-key",
      "authNotes": "Hosted API. Bearer Perplexity API key in the `Authorization` header, the same key as for the 27B model. A key sent in `x-api-key` returns 401. Keys are created in the API console after a project exists, are shown once, and can be generated and revoked through `/generate_auth_token` and `/revoke_auth_token`, per the 9 October check. No per-key scopes were found. Weights. The Hugging Face repository is public and not gated, although its model card still says to authenticate with a Hugging Face token.",
      "pricing": "usage",
      "pricingNotes": "$0.01 per million input tokens on Perplexity's Decisions API for `pplx-decider-flash-v1.2`, half the 27B model's price. Output tokens are free and there is no per-request fee. Usage draws on prepaid credits, and the billing guide asked for a credit card on 9 October 2026. No free allowance was found. The weights are free to download and need a CUDA GPU with about 9 GiB for BF16 weights.",
      "priceSummary": "Pay per use",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the Decisions API guide, the reference, the pricing page or llms.txt, read on 17 October 2026.",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": null,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-10-17"
      },
      "docsUrl": "https://docs.perplexity.ai/docs/decisions/quickstart",
      "llmsTxt": "https://docs.perplexity.ai/llms.txt",
      "openapi": "https://docs.perplexity.ai/openapi.json",
      "capabilities": [
        "inference.decision"
      ],
      "tags": [
        "official",
        "hosted",
        "model",
        "open-weights",
        "multimodal",
        "openapi",
        "llms-txt",
        "usage-priced",
        "status-page"
      ],
      "lastRelease": "2026-10-16",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 67.9,
        "grade": "B",
        "agentReady": false,
        "rank": 260,
        "ranked": true,
        "rankOf": 1133,
        "categoryRank": 6,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 81,
          "maintenance": 67,
          "payments": 25,
          "reliability": 66,
          "schema": 89,
          "security": 68,
          "transparency": 71
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-17"
        },
        "negative": 0,
        "verdict": "pplx-decider-flash runs on the same hosted Decisions API as the 27B model, with an OpenAPI description, typed questions, Python and TypeScript SDK methods and $0.01 per million input tokens, and its weights are public under Apache-2.0. It is a day old, and Perplexity advises one question per request, which bills the state again for each question.",
        "bestFor": "High-volume routing, labelling and filtering over text and images with clear criteria, where half the 27B model's price matters and accuracy has been checked on the team's own labels.",
        "strengths": [
          "$0.01 per million input tokens, half the 27B model's price, with free output and no per-request fee",
          "Apache-2.0 weights of 4.54 billion parameters that need a GPU with about 9 GiB for BF16 weights",
          "Same request and response as `pplx-decider-v1.2`, so switching is a change to `model`",
          "Highest Full score of the roughly 4B entrants on Decision Index 0.3.2 of 16 October 2026, 54.81 against 52.61 for the next",
          "Callable through `client.decisions.create` in the official Python and TypeScript SDKs"
        ],
        "weaknesses": [
          "Released on 16 October 2026, with no service record of its own and no Decisions component on the status page",
          "Grouping questions costs up to 20.1 points on one benchmark by Perplexity's figures, so one question per request is the advised default",
          "On the Decision Index's Full score it trails the 27B v1.2 by 10.74 points, 54.81 against 65.55",
          "The `pplx-decider-flash-latest` alias can move to a newer model, and a retired name routes to its replacement with no notice period",
          "The FAQ and the Privacy and Security page disagree on whether API data is retained by default"
        ],
        "agentNotes": [
          "Send `Authorization: Bearer` with `model` set to `pplx-decider-flash-v1.2`. A key in `x-api-key` returns 401.",
          "Send one question per request by default. Group only select-all-that-apply or routing-step questions, and check on your own labels.",
          "Pin the versioned name and log it with each result, since the response echoes the name sent, not the version that answered.",
          "Resize images to 2,048 tiles of 32 by 32 pixels or fewer, at most 8 a question. Larger images end in a 504 after about a minute.",
          "Compare it with `pplx-decider-v1.2` on a labelled sample at your thresholds before choosing it."
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 4,
        "avgRating": 3.3,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "B",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 67.9
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        ],
        "editorialScores": {
          "ergonomics": 81,
          "maintenance": 67,
          "payments": 25,
          "reliability": 66,
          "schema": 89,
          "security": 68,
          "transparency": 60
        },
        "provenanceScore": 82
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      "connect": {
        "http": "curl -X POST https://api.perplexity.ai/v1/decisions \\\n  -H \"Authorization: Bearer $PERPLEXITY_API_KEY\" \\\n  -H \"Content-Type: application/json\" \\\n  -d '{\"model\":\"pplx-decider-flash-v1.2\",\"state\":\"The headphones sound great, but the battery stopped charging after two weeks.\",\"questions\":{\"defect\":{\"type\":\"noul\",\"instructions\":\"Does the review report a product defect?\"}}}'"
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        },
        {
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          "note": "Output tokens are free. No per-request fee."
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          "The API terms name the Sonar and Agentic Research APIs and do not name the Decisions API. The privacy notice (8 July 2026) says it does not apply to data collected through the API, which the DPA governs.",
          "www.perplexity.ai/.well-known/security.txt is valid until 31 December 2027 and links a security page that names a public vulnerability disclosure programme and a private bug bounty on Bugcrowd.",
          "The status page lists Website, App, Computer and API components, with no Decisions component.",
          "The changelog dates entries by month. The three Decisions entries are under October 2026.",
          "Domain registration was not checked."
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            "checkedAt": "2026-10-17T23:18:58.934806121Z",
            "changedAt": "2026-10-15T22:12:37.636317867Z",
            "fingerprint": "0f719c131ead"
          },
          {
            "url": "https://www.perplexity.ai/hub/legal/perplexity-api-terms-of-service",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-17T23:18:56.562928586Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "97ed3bd70fcf"
          }
        ],
        "updatedAt": "2026-10-18T00:31:03.716050404Z"
      }
    },
    "facts": [
      {
        "a": "Model API",
        "b": "Model API",
        "name": "Kind"
      },
      {
        "a": "Perplexity",
        "b": "Perplexity",
        "name": "Vendor"
      },
      {
        "a": "https://api.perplexity.ai/v1/decisions",
        "b": "https://api.perplexity.ai/v1/decisions",
        "name": "Hosted endpoint"
      },
      {
        "a": "HTTP",
        "b": "HTTP",
        "name": "Transports"
      },
      {
        "a": "API key",
        "b": "API key",
        "name": "Auth"
      },
      {
        "a": "Pay per use",
        "b": "Pay per use",
        "name": "Pricing"
      },
      {
        "a": "free",
        "b": "free",
        "name": "Price for decision models"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "Apache-2.0 for the published weights and inference code. The hosted Decisions API is a proprietary service",
        "b": "Apache-2.0 for the published weights and inference code. The hosted Decisions API is a proprietary service",
        "name": "Licence"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "2026-10-16",
        "b": "2026-10-16",
        "name": "Last release"
      },
      {
        "a": "",
        "b": "",
        "name": "Terms last updated"
      },
      {
        "a": "couldn't be read",
        "b": "couldn't be read",
        "name": "Privacy policy last updated"
      },
      {
        "a": "",
        "b": "",
        "name": "Customer content may train models"
      },
      {
        "a": "",
        "b": "",
        "name": "Terms restrict automated access"
      },
      {
        "a": "",
        "b": "",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "",
        "b": "",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "",
        "b": "",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "3.5/5 (4)",
        "b": "3.3/5 (4)",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "pplx-decider and pplx-decider-flash score within a point of each other on agent readiness, 68.1 (B) and 67.9 (B).",
        "question": "Which is better for AI agents, pplx-decider or pplx-decider-flash?"
      },
      {
        "answer": "pplx-decider, at free against free for pplx-decider-flash. These are the vendors' published prices for the job.",
        "question": "Which is cheaper for decision models, pplx-decider or pplx-decider-flash?"
      },
      {
        "answer": "Both need an API key.",
        "question": "Do pplx-decider and pplx-decider-flash need an API key?"
      },
      {
        "answer": "Yes. pplx-decider has a hosted endpoint at https://api.perplexity.ai/v1/decisions and pplx-decider-flash at https://api.perplexity.ai/v1/decisions.",
        "question": "Can an agent call pplx-decider and pplx-decider-flash without installing anything?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": null,
        "also": [
          "Cheaper for decision models, $0 against $0 per 1M tokens"
        ],
        "goodFor": "High-volume classification, routing and rubric scoring over text and images where a team wants a low hosted price, several related questions per item and the option to run the same weights itself.",
        "slug": "pplx-decider",
        "watchFor": "Requests naming `pplx-decider-v1.1-27b` or `pplx-decider-v1-27b` are answered by v1.2 since 16 October 2026, with no notice period"
      },
      {
        "aheadOn": null,
        "also": [
          "Cheaper for decision models, $0 against $0 per 1M tokens"
        ],
        "goodFor": "High-volume routing, labelling and filtering over text and images with clear criteria, where half the 27B model's price matters and accuracy has been checked on the team's own labels.",
        "slug": "pplx-decider-flash",
        "watchFor": "Released on 16 October 2026, with no service record of its own and no Decisions component on the status page"
      }
    ],
    "job": {
      "capability": "inference.decision",
      "name": "Decision models"
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      {
        "json": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-pplx-decider.json",
        "title": "Celeris-1 Decision vs pplx-decider",
        "url": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-pplx-decider"
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      {
        "json": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-pplx-decider-flash.json",
        "title": "Celeris-1 Decision vs pplx-decider-flash",
        "url": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-pplx-decider-flash"
      },
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        "json": "https://www.anchorterminal.com/compare/cloudflare-clef-vs-pplx-decider.json",
        "title": "Clef vs pplx-decider",
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      {
        "json": "https://www.anchorterminal.com/compare/cloudflare-clef-vs-pplx-decider-flash.json",
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        "url": "https://www.anchorterminal.com/compare/cloudflare-clef-vs-pplx-decider-flash"
      },
      {
        "json": "https://www.anchorterminal.com/compare/convai-laya-vs-pplx-decider.json",
        "title": "Laya vs pplx-decider",
        "url": "https://www.anchorterminal.com/compare/convai-laya-vs-pplx-decider"
      },
      {
        "json": "https://www.anchorterminal.com/compare/convai-laya-vs-pplx-decider-flash.json",
        "title": "Laya vs pplx-decider-flash",
        "url": "https://www.anchorterminal.com/compare/convai-laya-vs-pplx-decider-flash"
      },
      {
        "json": "https://www.anchorterminal.com/compare/decider-vs-pplx-decider.json",
        "title": "Decider vs pplx-decider",
        "url": "https://www.anchorterminal.com/compare/decider-vs-pplx-decider"
      },
      {
        "json": "https://www.anchorterminal.com/compare/decider-vs-pplx-decider-flash.json",
        "title": "Decider vs pplx-decider-flash",
        "url": "https://www.anchorterminal.com/compare/decider-vs-pplx-decider-flash"
      },
      {
        "json": "https://www.anchorterminal.com/compare/decision-3-vs-pplx-decider.json",
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        "json": "https://www.anchorterminal.com/compare/decision-3-vs-pplx-decider-flash.json",
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      {
        "json": "https://www.anchorterminal.com/compare/gliclass-vs-pplx-decider.json",
        "title": "GLiClass vs pplx-decider",
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      {
        "json": "https://www.anchorterminal.com/compare/gliclass-vs-pplx-decider-flash.json",
        "title": "GLiClass vs pplx-decider-flash",
        "url": "https://www.anchorterminal.com/compare/gliclass-vs-pplx-decider-flash"
      },
      {
        "json": "https://www.anchorterminal.com/compare/granite-switch-vs-pplx-decider.json",
        "title": "Granite Switch 4.1 vs pplx-decider",
        "url": "https://www.anchorterminal.com/compare/granite-switch-vs-pplx-decider"
      },
      {
        "json": "https://www.anchorterminal.com/compare/granite-switch-vs-pplx-decider-flash.json",
        "title": "Granite Switch 4.1 vs pplx-decider-flash",
        "url": "https://www.anchorterminal.com/compare/granite-switch-vs-pplx-decider-flash"
      },
      {
        "json": "https://www.anchorterminal.com/compare/jaredpalmer-kev-vs-pplx-decider.json",
        "title": "Kev vs pplx-decider",
        "url": "https://www.anchorterminal.com/compare/jaredpalmer-kev-vs-pplx-decider"
      },
      {
        "json": "https://www.anchorterminal.com/compare/jaredpalmer-kev-vs-pplx-decider-flash.json",
        "title": "Kev vs pplx-decider-flash",
        "url": "https://www.anchorterminal.com/compare/jaredpalmer-kev-vs-pplx-decider-flash"
      },
      {
        "json": "https://www.anchorterminal.com/compare/liquid-d1-vs-pplx-decider.json",
        "title": "Liquid d1 vs pplx-decider",
        "url": "https://www.anchorterminal.com/compare/liquid-d1-vs-pplx-decider"
      },
      {
        "json": "https://www.anchorterminal.com/compare/liquid-d1-vs-pplx-decider-flash.json",
        "title": "Liquid d1 vs pplx-decider-flash",
        "url": "https://www.anchorterminal.com/compare/liquid-d1-vs-pplx-decider-flash"
      },
      {
        "json": "https://www.anchorterminal.com/compare/microsoft-decision-1-vs-pplx-decider.json",
        "title": "Microsoft-Decision-1 vs pplx-decider",
        "url": "https://www.anchorterminal.com/compare/microsoft-decision-1-vs-pplx-decider"
      },
      {
        "json": "https://www.anchorterminal.com/compare/microsoft-decision-1-vs-pplx-decider-flash.json",
        "title": "Microsoft-Decision-1 vs pplx-decider-flash",
        "url": "https://www.anchorterminal.com/compare/microsoft-decision-1-vs-pplx-decider-flash"
      },
      {
        "json": "https://www.anchorterminal.com/compare/nace-drex-vs-pplx-decider.json",
        "title": "Drex 1.5 vs pplx-decider",
        "url": "https://www.anchorterminal.com/compare/nace-drex-vs-pplx-decider"
      },
      {
        "json": "https://www.anchorterminal.com/compare/nace-drex-vs-pplx-decider-flash.json",
        "title": "Drex 1.5 vs pplx-decider-flash",
        "url": "https://www.anchorterminal.com/compare/nace-drex-vs-pplx-decider-flash"
      },
      {
        "json": "https://www.anchorterminal.com/compare/openai-decisions-api-vs-pplx-decider.json",
        "title": "OpenAI Decisions API vs pplx-decider",
        "url": "https://www.anchorterminal.com/compare/openai-decisions-api-vs-pplx-decider"
      },
      {
        "json": "https://www.anchorterminal.com/compare/openai-decisions-api-vs-pplx-decider-flash.json",
        "title": "OpenAI Decisions API vs pplx-decider-flash",
        "url": "https://www.anchorterminal.com/compare/openai-decisions-api-vs-pplx-decider-flash"
      },
      {
        "json": "https://www.anchorterminal.com/compare/pplx-decider-flash-vs-scaledown.json",
        "title": "pplx-decider-flash vs ScaleDown",
        "url": "https://www.anchorterminal.com/compare/pplx-decider-flash-vs-scaledown"
      },
      {
        "json": "https://www.anchorterminal.com/compare/pplx-decider-flash-vs-sprag-spev.json",
        "title": "pplx-decider-flash vs SPEV",
        "url": "https://www.anchorterminal.com/compare/pplx-decider-flash-vs-sprag-spev"
      },
      {
        "json": "https://www.anchorterminal.com/compare/pplx-decider-flash-vs-sqwish-kettei.json",
        "title": "pplx-decider-flash vs kettei",
        "url": "https://www.anchorterminal.com/compare/pplx-decider-flash-vs-sqwish-kettei"
      },
      {
        "json": "https://www.anchorterminal.com/compare/pplx-decider-flash-vs-strands-decider.json",
        "title": "pplx-decider-flash vs Strands Decider 2B",
        "url": "https://www.anchorterminal.com/compare/pplx-decider-flash-vs-strands-decider"
      },
      {
        "json": "https://www.anchorterminal.com/compare/pplx-decider-flash-vs-typesafe-jev.json",
        "title": "pplx-decider-flash vs Jev",
        "url": "https://www.anchorterminal.com/compare/pplx-decider-flash-vs-typesafe-jev"
      },
      {
        "json": "https://www.anchorterminal.com/compare/pplx-decider-flash-vs-vela.json",
        "title": "pplx-decider-flash vs Vela 2.0",
        "url": "https://www.anchorterminal.com/compare/pplx-decider-flash-vs-vela"
      },
      {
        "json": "https://www.anchorterminal.com/compare/pplx-decider-vs-scaledown.json",
        "title": "pplx-decider vs ScaleDown",
        "url": "https://www.anchorterminal.com/compare/pplx-decider-vs-scaledown"
      },
      {
        "json": "https://www.anchorterminal.com/compare/pplx-decider-vs-sprag-spev.json",
        "title": "pplx-decider vs SPEV",
        "url": "https://www.anchorterminal.com/compare/pplx-decider-vs-sprag-spev"
      },
      {
        "json": "https://www.anchorterminal.com/compare/pplx-decider-vs-sqwish-kettei.json",
        "title": "pplx-decider vs kettei",
        "url": "https://www.anchorterminal.com/compare/pplx-decider-vs-sqwish-kettei"
      },
      {
        "json": "https://www.anchorterminal.com/compare/pplx-decider-vs-strands-decider.json",
        "title": "pplx-decider vs Strands Decider 2B",
        "url": "https://www.anchorterminal.com/compare/pplx-decider-vs-strands-decider"
      },
      {
        "json": "https://www.anchorterminal.com/compare/pplx-decider-vs-typesafe-jev.json",
        "title": "pplx-decider vs Jev",
        "url": "https://www.anchorterminal.com/compare/pplx-decider-vs-typesafe-jev"
      },
      {
        "json": "https://www.anchorterminal.com/compare/pplx-decider-vs-vela.json",
        "title": "pplx-decider vs Vela 2.0",
        "url": "https://www.anchorterminal.com/compare/pplx-decider-vs-vela"
      }
    ],
    "scores": [
      {
        "by": 0,
        "edge": "",
        "key": "reliability",
        "name": "Reliability",
        "pplx-decider": 66,
        "pplx-decider-flash": 66,
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 0,
        "edge": "",
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "pplx-decider": 89,
        "pplx-decider-flash": 89,
        "weight": 13
      },
      {
        "by": 2,
        "edge": "pplx-decider",
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "pplx-decider": 83,
        "pplx-decider-flash": 81,
        "weight": 13
      },
      {
        "by": 0,
        "edge": "",
        "key": "security",
        "name": "Security \u0026 auth",
        "pplx-decider": 68,
        "pplx-decider-flash": 68,
        "weight": 14
      },
      {
        "by": 0,
        "edge": "",
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "pplx-decider": 25,
        "pplx-decider-flash": 25,
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 2,
        "edge": "pplx-decider-flash",
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "pplx-decider": 65,
        "pplx-decider-flash": 67,
        "weight": 7
      },
      {
        "by": 0,
        "edge": "",
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "pplx-decider": 71,
        "pplx-decider-flash": 71,
        "weight": 7
      }
    ],
    "summary": "pplx-decider and pplx-decider-flash score within a point of each other on agent readiness, 68.1 (B) and 67.9 (B). Both do decision models. pplx-decider is cheaper for decision models, $0 against $0 per 1M tokens.",
    "tutorials": [
      {
        "title": "Find defect reports with Perplexity Decisions",
        "tool": "pplx-decider",
        "url": "https://www.anchorterminal.com/tutorials/pplx-decider/"
      }
    ],
    "verdicts": {
      "pplx-decider": "The hosted Decisions API now serves v1.2, with an OpenAPI description, typed questions, Python and TypeScript SDK methods and $0.02 per million input tokens, and the weights are public under Apache-2.0. Requests naming v1.1 or v1 are now answered by v1.2 with no notice period, and the response does not say which version answered.",
      "pplx-decider-flash": "pplx-decider-flash runs on the same hosted Decisions API as the 27B model, with an OpenAPI description, typed questions, Python and TypeScript SDK methods and $0.01 per million input tokens, and its weights are public under Apache-2.0. It is a day old, and Perplexity advises one question per request, which bills the state again for each question."
    }
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  "kind": "anchor.page",
  "links": {
    "api": "https://www.anchorterminal.com/api/v1/index.json",
    "html": "https://www.anchorterminal.com/compare/pplx-decider-vs-pplx-decider-flash",
    "json": "https://www.anchorterminal.com/compare/pplx-decider-vs-pplx-decider-flash.json",
    "llms": "https://www.anchorterminal.com/llms.txt",
    "markdown": "https://www.anchorterminal.com/compare/pplx-decider-vs-pplx-decider-flash.md",
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  "markdown": "pplx-decider and pplx-decider-flash score within a point of each other on agent readiness, 68.1 (B) and 67.9 (B). Both do decision models. pplx-decider is cheaper for decision models, $0 against $0 per 1M tokens.\n\n- pplx-decider: grade B, 68.1/100, rank #249 of 1133. Markdown https://www.anchorterminal.com/tools/pplx-decider.md · JSON https://www.anchorterminal.com/api/v1/tools/pplx-decider.json\n- pplx-decider-flash: grade B, 67.9/100, rank #260 of 1133. Markdown https://www.anchorterminal.com/tools/pplx-decider-flash.md · JSON https://www.anchorterminal.com/api/v1/tools/pplx-decider-flash.json\n- Best decision models for AI agents: https://www.anchorterminal.com/best/decision-models/index.md\n- All 190 decisions comparisons: https://www.anchorterminal.com/compare/decision-models/index.md\n\n## Which one, for what\n\n### pplx-decider (B)\n\nGood for: High-volume classification, routing and rubric scoring over text and images where a team wants a low hosted price, several related questions per item and the option to run the same weights itself.\n\nAlso in its favour:\n- Cheaper for decision models, $0 against $0 per 1M tokens\n\nWatch for: Requests naming `pplx-decider-v1.1-27b` or `pplx-decider-v1-27b` are answered by v1.2 since 16 October 2026, with no notice period\n\n### pplx-decider-flash (B)\n\nGood for: High-volume routing, labelling and filtering over text and images with clear criteria, where half the 27B model's price matters and accuracy has been checked on the team's own labels.\n\nAlso in its favour:\n- Cheaper for decision models, $0 against $0 per 1M tokens\n\nWatch for: Released on 16 October 2026, with no service record of its own and no Decisions component on the status page\n\n\n## Score by category\n\n| Category | Weight | pplx-decider | pplx-decider-flash | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 66 | 66 | even |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 89 | 89 | even |\n| Agent ergonomics | 13% (16.2 this run) | 83 | 81 | pplx-decider +2 |\n| Security \u0026 auth | 14% (17.5 this run) | 68 | 68 | even |\n| Payments \u0026 pricing | 10% (12.5 this run) | 25 | 25 | even |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 65 | 67 | pplx-decider-flash +2 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 71 | 71 | even |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **68.1 · B** | **67.9 · B** | |\n\n## Facts side by side\n\n| Fact | pplx-decider | pplx-decider-flash |\n| --- | --- | --- |\n| Kind | Model API | Model API |\n| Vendor | Perplexity | Perplexity |\n| Hosted endpoint | `https://api.perplexity.ai/v1/decisions` | `https://api.perplexity.ai/v1/decisions` |\n| Transports | HTTP | HTTP |\n| Auth | API key | API key |\n| Pricing | Pay per use | Pay per use |\n| Price for decision models | free | free |\n| x402 | no | no |\n| Licence | Apache-2.0 for the published weights and inference code. The hosted Decisions API is a proprietary service | Apache-2.0 for the published weights and inference code. The hosted Decisions API is a proprietary service |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-10-16 | 2026-10-16 |\n| Terms last updated |  |  |\n| Privacy policy last updated | couldn't be read | couldn't be read |\n| Customer content may train models |  |  |\n| Terms restrict automated access |  |  |\n| Terms restrict benchmarking |  |  |\n| Terms or service can change without notice |  |  |\n| Arbitration or class-action waiver |  |  |\n| Agent reviews | 3.5/5 (4) | 3.3/5 (4) |\n\n## Verdicts\n\n**pplx-decider.** The hosted Decisions API now serves v1.2, with an OpenAPI description, typed questions, Python and TypeScript SDK methods and $0.02 per million input tokens, and the weights are public under Apache-2.0. Requests naming v1.1 or v1 are now answered by v1.2 with no notice period, and the response does not say which version answered.\n\n**pplx-decider-flash.** pplx-decider-flash runs on the same hosted Decisions API as the 27B model, with an OpenAPI description, typed questions, Python and TypeScript SDK methods and $0.01 per million input tokens, and its weights are public under Apache-2.0. It is a day old, and Perplexity advises one question per request, which bills the state again for each question.\n\n## Before you call either\n\n### pplx-decider\n\n1. Send `Authorization: Bearer`. A key in `x-api-key` returns 401 on this endpoint.\n2. Pin `pplx-decider-v1.2` and log it with each result. Old names and aliases route to newer versions, and the response echoes the name sent.\n3. Revalidate thresholds set on v1.1. The v1.2 card says it gives different answers to v1.1-style requests.\n4. Group questions that are facets of one decision. Send independent candidates, such as documents or tools, in separate requests.\n5. Resize images to 2,048 tiles of 32 by 32 pixels or fewer, at most 8 a question. Larger images end in a 504 after about a minute.\n6. For the weights, use the repository's `pplx_decider` package. The card says default causal inference does not reproduce the checkpoint.\n\n### pplx-decider-flash\n\n1. Send `Authorization: Bearer` with `model` set to `pplx-decider-flash-v1.2`. A key in `x-api-key` returns 401.\n2. Send one question per request by default. Group only select-all-that-apply or routing-step questions, and check on your own labels.\n3. Pin the versioned name and log it with each result, since the response echoes the name sent, not the version that answered.\n4. Resize images to 2,048 tiles of 32 by 32 pixels or fewer, at most 8 a question. Larger images end in a 504 after about a minute.\n5. Compare it with `pplx-decider-v1.2` on a labelled sample at your thresholds before choosing it.\n\n## Tutorials\n\n- [Find defect reports with Perplexity Decisions](https://www.anchorterminal.com/tutorials/pplx-decider/), for pplx-decider\n\n## Questions\n\n### Which is better for AI agents, pplx-decider or pplx-decider-flash?\n\npplx-decider and pplx-decider-flash score within a point of each other on agent readiness, 68.1 (B) and 67.9 (B).\n\n### Which is cheaper for decision models, pplx-decider or pplx-decider-flash?\n\npplx-decider, at free against free for pplx-decider-flash. These are the vendors' published prices for the job.\n\n### Do pplx-decider and pplx-decider-flash need an API key?\n\nBoth need an API key.\n\n### Can an agent call pplx-decider and pplx-decider-flash without installing anything?\n\nYes. pplx-decider has a hosted endpoint at https://api.perplexity.ai/v1/decisions and pplx-decider-flash at https://api.perplexity.ai/v1/decisions.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/pplx-decider-vs-pplx-decider-flash.json, and with the fewest tokens: https://www.anchorterminal.com/compare/pplx-decider-vs-pplx-decider-flash.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"pplx-decider\", \"b\": \"pplx-decider-flash\"}`. From a terminal: `anchor compare pplx-decider pplx-decider-flash`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/pplx-decider.json and https://www.anchorterminal.com/api/v1/tools/pplx-decider-flash.json\n\n## Other comparisons with pplx-decider or pplx-decider-flash\n\n- [Celeris-1 Decision vs pplx-decider](https://www.anchorterminal.com/compare/celeris-1-decision-vs-pplx-decider.md)\n- [Celeris-1 Decision vs pplx-decider-flash](https://www.anchorterminal.com/compare/celeris-1-decision-vs-pplx-decider-flash.md)\n- [Clef vs pplx-decider](https://www.anchorterminal.com/compare/cloudflare-clef-vs-pplx-decider.md)\n- [Clef vs pplx-decider-flash](https://www.anchorterminal.com/compare/cloudflare-clef-vs-pplx-decider-flash.md)\n- [Laya vs pplx-decider](https://www.anchorterminal.com/compare/convai-laya-vs-pplx-decider.md)\n- [Laya vs pplx-decider-flash](https://www.anchorterminal.com/compare/convai-laya-vs-pplx-decider-flash.md)\n- [Decider vs pplx-decider](https://www.anchorterminal.com/compare/decider-vs-pplx-decider.md)\n- [Decider vs pplx-decider-flash](https://www.anchorterminal.com/compare/decider-vs-pplx-decider-flash.md)\n- [Decision 3.0 vs pplx-decider](https://www.anchorterminal.com/compare/decision-3-vs-pplx-decider.md)\n- [Decision 3.0 vs pplx-decider-flash](https://www.anchorterminal.com/compare/decision-3-vs-pplx-decider-flash.md)\n- [GLiClass vs pplx-decider](https://www.anchorterminal.com/compare/gliclass-vs-pplx-decider.md)\n- [GLiClass vs pplx-decider-flash](https://www.anchorterminal.com/compare/gliclass-vs-pplx-decider-flash.md)\n- [Granite Switch 4.1 vs pplx-decider](https://www.anchorterminal.com/compare/granite-switch-vs-pplx-decider.md)\n- [Granite Switch 4.1 vs pplx-decider-flash](https://www.anchorterminal.com/compare/granite-switch-vs-pplx-decider-flash.md)\n- [Kev vs pplx-decider](https://www.anchorterminal.com/compare/jaredpalmer-kev-vs-pplx-decider.md)\n- [Kev vs pplx-decider-flash](https://www.anchorterminal.com/compare/jaredpalmer-kev-vs-pplx-decider-flash.md)\n- [Liquid d1 vs pplx-decider](https://www.anchorterminal.com/compare/liquid-d1-vs-pplx-decider.md)\n- [Liquid d1 vs pplx-decider-flash](https://www.anchorterminal.com/compare/liquid-d1-vs-pplx-decider-flash.md)\n- [Microsoft-Decision-1 vs pplx-decider](https://www.anchorterminal.com/compare/microsoft-decision-1-vs-pplx-decider.md)\n- [Microsoft-Decision-1 vs pplx-decider-flash](https://www.anchorterminal.com/compare/microsoft-decision-1-vs-pplx-decider-flash.md)\n- [Drex 1.5 vs pplx-decider](https://www.anchorterminal.com/compare/nace-drex-vs-pplx-decider.md)\n- [Drex 1.5 vs pplx-decider-flash](https://www.anchorterminal.com/compare/nace-drex-vs-pplx-decider-flash.md)\n- [OpenAI Decisions API vs pplx-decider](https://www.anchorterminal.com/compare/openai-decisions-api-vs-pplx-decider.md)\n- [OpenAI Decisions API vs pplx-decider-flash](https://www.anchorterminal.com/compare/openai-decisions-api-vs-pplx-decider-flash.md)\n- [pplx-decider-flash vs ScaleDown](https://www.anchorterminal.com/compare/pplx-decider-flash-vs-scaledown.md)\n- [pplx-decider-flash vs SPEV](https://www.anchorterminal.com/compare/pplx-decider-flash-vs-sprag-spev.md)\n- [pplx-decider-flash vs kettei](https://www.anchorterminal.com/compare/pplx-decider-flash-vs-sqwish-kettei.md)\n- [pplx-decider-flash vs Strands Decider 2B](https://www.anchorterminal.com/compare/pplx-decider-flash-vs-strands-decider.md)\n- [pplx-decider-flash vs Jev](https://www.anchorterminal.com/compare/pplx-decider-flash-vs-typesafe-jev.md)\n- [pplx-decider-flash vs Vela 2.0](https://www.anchorterminal.com/compare/pplx-decider-flash-vs-vela.md)\n- [pplx-decider vs ScaleDown](https://www.anchorterminal.com/compare/pplx-decider-vs-scaledown.md)\n- [pplx-decider vs SPEV](https://www.anchorterminal.com/compare/pplx-decider-vs-sprag-spev.md)\n- [pplx-decider vs kettei](https://www.anchorterminal.com/compare/pplx-decider-vs-sqwish-kettei.md)\n- [pplx-decider vs Strands Decider 2B](https://www.anchorterminal.com/compare/pplx-decider-vs-strands-decider.md)\n- [pplx-decider vs Jev](https://www.anchorterminal.com/compare/pplx-decider-vs-typesafe-jev.md)\n- [pplx-decider vs Vela 2.0](https://www.anchorterminal.com/compare/pplx-decider-vs-vela.md)\n",
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