{ "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 multimodal 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 from 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-v1.1-27b", "license": "Apache-2.0 for the published weights. 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. Weights. The Hugging Face repository is public and not gated, and the bundled server takes an optional `AUTOJEV_API_KEY`.", "pricing": "usage", "pricingNotes": "$0.02 per million input tokens on Perplexity's Decisions API for both `pplx-decider-v1.1-27b` and `pplx-decider-v1-27b`. Output tokens are free and there is no per-request fee. The changelog says v1 launched at $0.04. Usage draws on prepaid credits, and the billing guide asks for a credit card. No free allowance was found. The weights are free to download and need a GPU with about 49 GiB for 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 9 October 2026.", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-09" }, "docsUrl": "https://docs.perplexity.ai/docs/decisions/quickstart", "llmsTxt": "https://docs.perplexity.ai/llms.txt", "openapi": "https://docs.perplexity.ai/openapi-gateway-preview.json", "capabilities": [ "inference.decision" ], "tags": [ "official", "hosted", "model", "open-weights", "multimodal", "openapi", "llms-txt", "usage-priced", "status-page" ], "lastRelease": "2026-10-05", "graded": true, "anchor": { "graded": true, "score": 62.9, "grade": "B", "agentReady": false, "rank": 448, "ranked": true, "rankOf": 1094, "categoryRank": 9, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 76, "maintenance": 62, "payments": 25, "reliability": 61, "schema": 90, "security": 61, "transparency": 52 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-09" }, "negative": 0, "verdict": "The hosted Decisions API has an OpenAPI description, typed questions, documented limits and a published price of $0.02 per million input tokens, and the v1.1 weights are public under Apache-2.0. The API is days old, the official Python SDK has no method for it, and the governing terms and privacy notice could not be read on 9 October 2026.", "bestFor": "High-volume classification, routing and rubric scoring over text and images where a team wants a low hosted price and the option to run the same weights itself.", "strengths": [ "Weights for v1.1 and v1 are public on Hugging Face under Apache-2.0, with training code, config and a data manifest in the repository", "One request takes up to 128 questions about one `state`, mixing `noul`, `choice` and `score`, with under 262,144 input tokens", "$0.02 per million input tokens with free output and no per-request fee, published without a login", "OpenAPI 3.0.3 description, llms.txt and Markdown pages for the guide and reference", "Rate limit stated as 10 requests a second per organisation, with `Retry-After` on 429 and `x-ratelimit-*` headers" ], "weaknesses": [ "The Decisions API was released in October 2026, so its incident record is days long, and Perplexity's FAQ says it gives no uptime guarantee", "The official Python SDK at 0.43.8 has no Decisions method. The guide uses a plain HTTP client", "An image over 2,048 tiles is not rejected. The request waits about a minute and returns 504", "The zero-retention statement on the Privacy and Security page names only the Chat Completions API", "The bundled server in the weights repository caps a question at 8,192 tokens and reads a `playground.html` the v1.1 repository does not include" ], "agentNotes": [ "Send `Authorization: Bearer`. A key in `x-api-key` returns 401 on this endpoint.", "Set `model` on every request. A missing or unknown model returns 400, and the guide shows a `-latest` name rejected.", "Resize images to 2,048 tiles of 32 by 32 pixels or fewer before sending. Larger images end in a 504 after about a minute.", "Check the HTTP status before parsing an error. 404 and 405 have empty bodies, 504 can be HTML, and `error.code` changes type.", "For the weights, use the repository's `autojev` code. The card says default causal inference does not reproduce the evaluated setup." ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 62.9 } ], "editorialScores": { "ergonomics": 76, "maintenance": 62, "payments": 25, "reliability": 61, "schema": 90, "security": 61, "transparency": 54 }, "provenanceScore": 49 }, "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-v1.1-27b\",\"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?\"}}}'" }, "letme": { "capability": "https://letme.dev/inference.decision", "tool": "https://letme.dev/pplx-decider" }, "area": "models", "unitPrices": [ { "item": "Decision input", "unit": "1m-tokens", "usd": 0.02, "note": "Same price for v1.1 and v1. State, questions and images count as input." }, { "item": "Decision output", "unit": "1m-tokens", "usd": 0, "note": "Output tokens are free. No per-request fee." } ], "provenance": { "legalEntity": "", "domain": "perplexity.ai", "domainRegistered": "", "endpointOnVendorDomain": true, "terms": "https://www.perplexity.ai/hub/legal/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": "unknown", "checked": "2026-10-09", "notes": [ "The terms of service and privacy notice linked here are the two the status page links. www.perplexity.ai answered our researcher with a bot check (403) on 9 October 2026, so neither was read.", "No legal entity was established. The pages read name the vendor only as Perplexity, and the Hugging Face organisation is marked as a verified company.", "The status page lists Website, App, Computer and API components, with no Decisions component.", "The changelog dates entries by month. The two Decisions entries are under October 2026.", "docs.perplexity.ai answered 404 for the well-known security.txt. The main site was not readable, so security.txt is unknown. Domain registration was not checked." ], "score": 49 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/pplx-decider.json", "live": { "slug": "pplx-decider", "probe": { "target": "https://api.perplexity.ai/v1/decisions", "method": "get", "lastAt": "2026-10-15T14:03:40.687266236Z", "lastOk": true, "lastStatus": 401, "lastMs": 175, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 184, "p95ms24h": 359, "samples24h": 254, "samples30d": 1473, "days": [ { "date": "2026-10-09", "probes": 85, "ok": 85 }, { "date": "2026-10-10", "probes": 247, "ok": 247 }, { "date": "2026-10-11", "probes": 247, "ok": 247 }, { "date": "2026-10-12", "probes": 247, "ok": 247 }, { "date": "2026-10-13", "probes": 248, "ok": 248 }, { "date": "2026-10-14", "probes": 249, "ok": 249 }, { "date": "2026-10-15", "probes": 150, "ok": 150 } ] }, "vendorStatus": { "page": "https://status.perplexity.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-15T13:53:55.954113793Z" }, "securityTxt": { "url": "https://perplexity.ai/.well-known/security.txt", "state": "valid", "expires": "2027-12-31T00:00:00Z", "checkedAt": "2026-10-14T15:46:22.753740144Z" }, "llmsTxt": { "url": "https://docs.perplexity.ai/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-14T14:14:53.630197772Z" }, "domain": { "domain": "perplexity.ai", "registered": "2022-07-08", "source": "https://rdap.identitydigital.services/rdap/domain/perplexity.ai", "checkedAt": "2026-10-11T13:15:04.399070492Z" }, "pages": [ { "url": "https://docs.perplexity.ai/docs/resources/changelog", "kind": "changelog", "status": 200, "checkedAt": "2026-10-14T20:59:10.93289188Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "ab545eed1660" }, { "url": "https://www.perplexity.ai/hub/legal/privacy-notice", "kind": "privacy", "status": 200, "checkedAt": "2026-10-14T21:15:50.34618316Z", "changedAt": "2026-10-14T21:15:50.34618316Z", "fingerprint": "f15fdcf4e579" }, { "url": "https://www.perplexity.ai/hub/legal/terms-of-service", "kind": "terms", "status": 200, "checkedAt": "2026-10-14T21:15:52.672274067Z", "changedAt": "2026-10-14T21:15:52.672274067Z", "fingerprint": "8c984f0e347d" } ], "updatedAt": "2026-10-15T14:03:40.687266236Z" } }, "answer": "pplx-decider scores 62.9 (B) on agent readiness against ScaleDown's 48.6 (D), and leads in 4 of 7 scored categories. ScaleDown leads on payments \u0026 pricing.", "b": { "slug": "scaledown", "name": "ScaleDown", "vendor": "Carbon ScaleDown, Inc.", "vendorUrl": "https://scaledown.ai", "kind": "model", "category": "decision-models", "summary": "ScaleDown's API serves three single-task Constrained Decoding Models (Classify, Extract and Summarize) and a Compress model, called with an API key at api.scaledown.xyz. Classify answers Jev-shaped decision requests with probabilities.", "url": "https://www.anchorterminal.com/tools/scaledown", "markdownUrl": "https://www.anchorterminal.com/tools/scaledown.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/scaledown.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/scaledown.json", "repo": "https://github.com/scaledown-team/langchain-scaledown", "license": "Proprietary hosted models under ScaleDown's Terms of Service. The langchain-scaledown integration is MIT", "transports": [ "http" ], "remoteUrl": "https://api.scaledown.xyz", "packages": [ { "registry": "pypi", "name": "langchain-scaledown" } ], "auth": "api-key", "authNotes": "An API key in the `x-api-key` header. Extract and Summarize on `/v1/chat/completions` also accept `Authorization: Bearer`, so an unmodified OpenAI SDK works by changing the base URL. Keys are made in the dashboard after sign-up at scaledown.ai/auth. We found no documentation of key scopes, expiry or rotation. An unauthenticated request returns 401 with `{\"detail\":\"x-api-key header is required\"}`.", "pricing": "usage", "pricingNotes": "$0.05 per million input tokens for every model, with output tokens free (https://scaledown.ai, FAQ). Classify's optional one-sentence reasoning bills its extra input tokens at 2x. New accounts get 50 million free tokens with no card, per the homepage. The docs introduction instead says to contact sales for a key. OpenRouter lists Extract and Summarize at $0.04 per million input tokens. Enterprise and self-hosted plans are priced by sales.", "priceSummary": "Pay per use", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the docs, the OpenAPI document, the site or the LiteLLM and OpenRouter entries (checked 2026-10-14). Running out of credit returns 402 Payment Required as an ordinary error.", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 0, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-14" }, "docsUrl": "https://docs.scaledown.ai/introduction", "llmsTxt": "https://docs.scaledown.ai/llms.txt", "openapi": "https://docs.scaledown.ai/api-reference/openapi.json", "capabilities": [ "inference.decision", "docs.extract" ], "tags": [ "hosted", "model", "closed-source", "openapi", "llms-txt", "openai-compatible", "usage-priced", "free-tier", "no-card", "python" ], "lastRelease": "2026-10-14", "graded": true, "anchor": { "graded": true, "score": 48.6, "grade": "D", "agentReady": false, "rank": 880, "ranked": true, "rankOf": 1094, "categoryRank": 15, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 76, "maintenance": 56, "payments": 40, "reliability": 20, "schema": 69, "security": 48, "transparency": 54 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-14" }, "negative": -2, "negativeNotes": [ "Conflicting compliance claims on ScaleDown's own pages, read 14 October 2026. The DPA (20 July 2026) says ScaleDown maintains a SOC 2 Type II attestation and ISO 27001 certification, the homepage shows SOC 2 Type 1, HIPAA and ISO 27001 badges, and llms.txt says GDPR, HIPAA and SOC 2 compliance is in progress. At least one is wrong. No report or trust centre found to settle it (-2) (https://scaledown.ai/dpa, https://scaledown.ai/llms.txt)" ], "verdict": "Classify answers Jev-shaped `choice`, `noul` and `score` questions with probabilities, and Extract returns values with confidences and character offsets, at $0.05 per million input tokens with output free. There is no status page, no published rate limit and no public changelog, and the site's compliance claims contradict each other.", "bestFor": "Cheap, high-volume labelling, routing and yes or no checks where a probability is more useful than prose, and for pulling described fields with offsets from text, images or PDFs.", "strengths": [ "`POST /v1/scaledown` takes Jev's request shape, so a Jev integration can move by changing the base URL, per the docs", "$0.05 per million input tokens for every model, output free, and 50 million free tokens with no card, per the homepage", "Extract returns each value with a confidence, character offsets and surrounding context, and routes `enum` fields to the Classify model", "llms.txt with Markdown twins, an OpenAPI 3.1 document and OpenAI-compatible chat completions for Extract and Summarize", "The terms, DPA and FAQ agree that customer data isn't used for training, and the DPA lists four US subprocessors" ], "weaknesses": [ "No status page, no published rate limits and no SLA outside enterprise contracts", "No public changelog. The docs dropped the native /extract and /summarization endpoints from the reference on 13 October 2026", "Compliance claims disagree between the DPA (SOC 2 Type II, ISO 27001), the homepage badges (SOC 2 Type 1) and llms.txt (in progress)", "No security.txt, disclosure policy or bug bounty, and no guidance on hostile text in classified input", "The OpenAPI document covers /classify, /v1/scaledown and Compress only, without the documented limits" ], "agentNotes": [ "Send several questions about one item in one `/v1/scaledown` call. Each becomes its own Classify call and the usage is summed", "Pin `classify-1`, `extract-1` or `summarize-1` once you've tuned thresholds on your own labelled cases", "Set `context_chars` to 0 and use `top_n` on Extract unless you need the 500 characters of context each side", "Set `reasoning: false` on /classify when you only need the label. The reasoning call bills its input at 2x", "Back off and retry on 429, 502 and 504. No limits are published and calls have no side effects" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "D", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 48.6 } ], "editorialScores": { "ergonomics": 76, "maintenance": 56, "payments": 40, "reliability": 20, "schema": 69, "security": 48, "transparency": 56 }, "provenanceScore": 52 }, "connect": { "install": "pip install langchain-scaledown # LangChain middleware; any OpenAI SDK also works against /v1/chat/completions", "http": "curl https://api.scaledown.xyz/v1/scaledown \\\n -H \"x-api-key: $SCALEDOWN_API_KEY\" -H \"Content-Type: application/json\" \\\n -d '{\"model\":\"classify-1\",\"state\":\"I was charged twice for my subscription this month.\",\"questions\":{\"category\":{\"type\":\"choice\",\"criteria\":{\"billing\":\"About a charge, invoice, refund, or payment problem.\",\"technical\":\"About a bug or something not working.\"}}}}'" }, "letme": { "capability": "https://letme.dev/inference.decision", "tool": "https://letme.dev/scaledown" }, "alsoIn": [ "document-extraction" ], "area": "models", "unitPrices": [ { "item": "Classify, Extract, Summarize and Compress input", "unit": "1m-tokens", "usd": 0.05, "note": "Output tokens free. Classify reasoning input billed at 2x. 50M free tokens for new accounts" } ], "provenance": { "legalEntity": "Carbon ScaleDown, Inc.", "domain": "scaledown.ai", "domainRegistered": "2025-03-28", "endpointOnVendorDomain": true, "terms": "https://scaledown.ai/terms", "privacy": "https://scaledown.ai/privacy", "statusPage": "", "changelog": "", "securityTxt": "none", "checked": "2026-10-14", "notes": [ "The terms (last updated 20 July 2026), privacy notice (3 June 2026) and DPA (20 July 2026) name Carbon ScaleDown, Inc., 22952 Stokes Rd, Ramona, CA 92065, and Delaware law. One sentence of the terms names ScaleDown, Inc.", "scaledown.ai is a single-page app. /terms, /privacy and /dpa answer HTTP 404 with the app shell, and their text is in the JavaScript bundle (https://scaledown.ai/assets/index-CIrIjse9.js), where we read it.", "The API host is api.scaledown.xyz. scaledown.xyz redirects to scaledown.ai, so we treat the endpoint as on the vendor's domain.", "scaledown.ai/.well-known/security.txt and docs.scaledown.ai/.well-known/security.txt return 404. status.scaledown.ai and status.scaledown.xyz don't resolve.", "No public changelog. The docs source at github.com/scaledown-team/docs has dated commits that record API changes.", "RDAP gives scaledown.ai a registration date of 28 March 2025." ], "score": 52 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/scaledown.json", "live": { "slug": "scaledown", "probe": { "target": "https://api.scaledown.xyz", "method": "get", "lastAt": "2026-10-15T14:03:43.707330463Z", "lastOk": true, "lastStatus": 403, "lastMs": 252, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 263, "p95ms24h": 308, "samples24h": 197, "samples30d": 197, "days": [ { "date": "2026-10-14", "probes": 47, "ok": 47 }, { "date": "2026-10-15", "probes": 150, "ok": 150 } ] }, "versions": [ { "registry": "pypi", "name": "langchain-scaledown", "version": "0.2.0", "released": "2026-10-12", "seenAt": "2026-10-15T00:19:27.075016002Z" } ], "githubStars": 0, "pypiWeekly": 229, "pages": [ { "url": "https://scaledown.ai/privacy", "kind": "privacy", "status": 404, "checkedAt": "2026-10-14T21:06:40.247126332Z", "changedAt": "0001-01-01T00:00:00Z" }, { "url": "https://scaledown.ai/terms", "kind": "terms", "status": 404, "checkedAt": "2026-10-14T21:06:42.626164273Z", "changedAt": "0001-01-01T00:00:00Z" } ], "updatedAt": "2026-10-15T14:03:43.707330463Z" } }, "facts": [ { "a": "Model API", "b": "Model API", "name": "Kind" }, { "a": "Perplexity", "b": "Carbon ScaleDown, Inc.", "name": "Vendor" }, { "a": "https://api.perplexity.ai/v1/decisions", "b": "https://api.scaledown.xyz", "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": "not published", "name": "Price for decision models" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Apache-2.0 for the published weights. The hosted Decisions API is a proprietary service", "b": "Proprietary hosted models under ScaleDown's Terms of Service. The langchain-scaledown integration is MIT", "name": "Licence" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "yes", "name": "llms.txt" }, { "a": "2026-10-05", "b": "2026-10-14", "name": "Last release" }, { "a": "couldn't be read", "b": "couldn't be read", "name": "Terms last updated" }, { "a": "couldn't be read", "b": "couldn't be read", "name": "Privacy policy last updated" }, { "a": "couldn't be read", "b": "couldn't be read", "name": "Customer content may train models" }, { "a": "couldn't be read", "b": "couldn't be read", "name": "Terms restrict automated access" }, { "a": "couldn't be read", "b": "couldn't be read", "name": "Terms restrict benchmarking" }, { "a": "couldn't be read", "b": "couldn't be read", "name": "Terms or service can change without notice" }, { "a": "couldn't be read", "b": "couldn't be read", "name": "Arbitration or class-action waiver" }, { "a": "none", "b": "0 stars", "name": "Popularity" } ], "faq": [ { "answer": "pplx-decider scores 62.9 (B) on agent readiness against ScaleDown's 48.6 (D), and leads in 4 of 7 scored categories. ScaleDown leads on payments \u0026 pricing.", "question": "Which is better for AI agents, pplx-decider or ScaleDown?" }, { "answer": "Both need an API key.", "question": "Do pplx-decider and ScaleDown need an API key?" }, { "answer": "Yes. pplx-decider has a hosted endpoint at https://api.perplexity.ai/v1/decisions and ScaleDown at https://api.scaledown.xyz.", "question": "Can an agent call pplx-decider and ScaleDown without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 61 against 20", "Schema \u0026 documentation, 90 against 69", "Security \u0026 auth, 61 against 48", "Maintenance \u0026 community, 62 against 56" ], "also": null, "goodFor": "High-volume classification, routing and rubric scoring over text and images where a team wants a low hosted price and the option to run the same weights itself.", "slug": "pplx-decider", "watchFor": "The Decisions API was released in October 2026, so its incident record is days long, and Perplexity's FAQ says it gives no uptime guarantee" }, { "aheadOn": [ "Payments \u0026 pricing, 40 against 25" ], "also": [ "Free to start without a card" ], "goodFor": "Cheap, high-volume labelling, routing and yes or no checks where a probability is more useful than prose, and for pulling described fields with offsets from text, images or PDFs.", "slug": "scaledown", "watchFor": "No status page, no published rate limits and no SLA outside enterprise contracts" } ], "job": { "capability": "inference.decision", "name": "Decision models" }, "others": [ { "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" }, { "json": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-scaledown.json", "title": "Celeris-1 Decision vs ScaleDown", "url": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-scaledown" }, { "json": "https://www.anchorterminal.com/compare/cloudflare-clef-vs-pplx-decider.json", "title": "Clef vs pplx-decider", "url": "https://www.anchorterminal.com/compare/cloudflare-clef-vs-pplx-decider" }, { "json": "https://www.anchorterminal.com/compare/cloudflare-clef-vs-scaledown.json", "title": "Clef vs ScaleDown", "url": "https://www.anchorterminal.com/compare/cloudflare-clef-vs-scaledown" }, { "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-scaledown.json", "title": "Laya vs ScaleDown", "url": "https://www.anchorterminal.com/compare/convai-laya-vs-scaledown" }, { "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-scaledown.json", "title": "Decider vs ScaleDown", "url": "https://www.anchorterminal.com/compare/decider-vs-scaledown" }, { "json": "https://www.anchorterminal.com/compare/decision-3-vs-pplx-decider.json", "title": "Decision 3.0 vs pplx-decider", "url": "https://www.anchorterminal.com/compare/decision-3-vs-pplx-decider" }, { "json": "https://www.anchorterminal.com/compare/decision-3-vs-scaledown.json", "title": "Decision 3.0 vs ScaleDown", "url": "https://www.anchorterminal.com/compare/decision-3-vs-scaledown" }, { "json": "https://www.anchorterminal.com/compare/gliclass-vs-pplx-decider.json", "title": "GLiClass vs pplx-decider", "url": "https://www.anchorterminal.com/compare/gliclass-vs-pplx-decider" }, { "json": "https://www.anchorterminal.com/compare/gliclass-vs-scaledown.json", "title": "GLiClass vs ScaleDown", "url": "https://www.anchorterminal.com/compare/gliclass-vs-scaledown" }, { "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-scaledown.json", "title": "Kev vs ScaleDown", "url": "https://www.anchorterminal.com/compare/jaredpalmer-kev-vs-scaledown" }, { "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-scaledown.json", "title": "Liquid d1 vs ScaleDown", "url": "https://www.anchorterminal.com/compare/liquid-d1-vs-scaledown" }, { "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-scaledown.json", "title": "Microsoft-Decision-1 vs ScaleDown", "url": "https://www.anchorterminal.com/compare/microsoft-decision-1-vs-scaledown" }, { "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-scaledown.json", "title": "Drex 1.5 vs ScaleDown", "url": "https://www.anchorterminal.com/compare/nace-drex-vs-scaledown" }, { "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-scaledown.json", "title": "OpenAI Decisions API vs ScaleDown", "url": "https://www.anchorterminal.com/compare/openai-decisions-api-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-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" }, { "json": "https://www.anchorterminal.com/compare/scaledown-vs-sprag-spev.json", "title": "ScaleDown vs SPEV", "url": "https://www.anchorterminal.com/compare/scaledown-vs-sprag-spev" }, { "json": "https://www.anchorterminal.com/compare/scaledown-vs-strands-decider.json", "title": "ScaleDown vs Strands Decider 2B", "url": "https://www.anchorterminal.com/compare/scaledown-vs-strands-decider" }, { "json": "https://www.anchorterminal.com/compare/scaledown-vs-typesafe-jev.json", "title": "ScaleDown vs Jev", "url": "https://www.anchorterminal.com/compare/scaledown-vs-typesafe-jev" }, { "json": "https://www.anchorterminal.com/compare/scaledown-vs-vela.json", "title": "ScaleDown vs Vela 2.0", "url": "https://www.anchorterminal.com/compare/scaledown-vs-vela" } ], "scores": [ { "by": 41, "edge": "pplx-decider", "key": "reliability", "name": "Reliability", "pplx-decider": 61, "scaledown": 20, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 21, "edge": "pplx-decider", "key": "schema", "name": "Schema \u0026 documentation", "pplx-decider": 90, "scaledown": 69, "weight": 13 }, { "by": 0, "edge": "", "key": "ergonomics", "name": "Agent ergonomics", "pplx-decider": 76, "scaledown": 76, "weight": 13 }, { "by": 13, "edge": "pplx-decider", "key": "security", "name": "Security \u0026 auth", "pplx-decider": 61, "scaledown": 48, "weight": 14 }, { "by": 15, "edge": "scaledown", "key": "payments", "name": "Payments \u0026 pricing", "pplx-decider": 25, "scaledown": 40, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 6, "edge": "pplx-decider", "key": "maintenance", "name": "Maintenance \u0026 community", "pplx-decider": 62, "scaledown": 56, "weight": 7 }, { "by": 2, "edge": "scaledown", "key": "transparency", "name": "Transparency \u0026 trust", "pplx-decider": 52, "scaledown": 54, "weight": 7 } ], "summary": "pplx-decider scores 62.9 (B) on agent readiness against ScaleDown's 48.6 (D), and leads in 4 of 7 scored categories. ScaleDown leads on payments \u0026 pricing. Both do decision models.", "verdicts": { "pplx-decider": "The hosted Decisions API has an OpenAPI description, typed questions, documented limits and a published price of $0.02 per million input tokens, and the v1.1 weights are public under Apache-2.0. The API is days old, the official Python SDK has no method for it, and the governing terms and privacy notice could not be read on 9 October 2026.", "scaledown": "Classify answers Jev-shaped `choice`, `noul` and `score` questions with probabilities, and Extract returns values with confidences and character offsets, at $0.05 per million input tokens with output free. There is no status page, no published rate limit and no public changelog, and the site's compliance claims contradict each other." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/pplx-decider-vs-scaledown", "json": "https://www.anchorterminal.com/compare/pplx-decider-vs-scaledown.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/pplx-decider-vs-scaledown.md", "slim": "https://www.anchorterminal.com/compare/pplx-decider-vs-scaledown.min.md" }, "markdown": "pplx-decider scores 62.9 (B) on agent readiness against ScaleDown's 48.6 (D), and leads in 4 of 7 scored categories. ScaleDown leads on payments \u0026 pricing. Both do decision models.\n\n- pplx-decider: grade B, 62.9/100, rank #448 of 1094. Markdown https://www.anchorterminal.com/tools/pplx-decider.md · JSON https://www.anchorterminal.com/api/v1/tools/pplx-decider.json\n- ScaleDown: grade D, 48.6/100, rank #880 of 1094. Markdown https://www.anchorterminal.com/tools/scaledown.md · JSON https://www.anchorterminal.com/api/v1/tools/scaledown.json\n- Best decision models for AI agents: https://www.anchorterminal.com/best/decision-models/index.md\n- All 136 decisions comparisons: https://www.anchorterminal.com/compare/decision-models/index.md\n- Best document parsing, OCR and extraction APIs for AI agents: https://www.anchorterminal.com/best/document-extraction/index.md\n- All 125 documents comparisons: https://www.anchorterminal.com/compare/document-extraction/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 and the option to run the same weights itself.\n\nAhead on:\n- Reliability, 61 against 20\n- Schema \u0026 documentation, 90 against 69\n- Security \u0026 auth, 61 against 48\n- Maintenance \u0026 community, 62 against 56\n\nWatch for: The Decisions API was released in October 2026, so its incident record is days long, and Perplexity's FAQ says it gives no uptime guarantee\n\n### ScaleDown (D)\n\nGood for: Cheap, high-volume labelling, routing and yes or no checks where a probability is more useful than prose, and for pulling described fields with offsets from text, images or PDFs.\n\nAhead on:\n- Payments \u0026 pricing, 40 against 25\n\nAlso in its favour:\n- Free to start without a card\n\nWatch for: No status page, no published rate limits and no SLA outside enterprise contracts\n\n\n## Score by category\n\n| Category | Weight | pplx-decider | ScaleDown | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 61 | 20 | pplx-decider +41 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 90 | 69 | pplx-decider +21 |\n| Agent ergonomics | 13% (16.2 this run) | 76 | 76 | even |\n| Security \u0026 auth | 14% (17.5 this run) | 61 | 48 | pplx-decider +13 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 25 | 40 | ScaleDown +15 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 62 | 56 | pplx-decider +6 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 52 | 54 | ScaleDown +2 |\n| Negative events | ≤15 | 0 | -2 | |\n| **Total** | | **62.9 · B** | **48.6 · D** | |\n\n## Facts side by side\n\n| Fact | pplx-decider | ScaleDown |\n| --- | --- | --- |\n| Kind | Model API | Model API |\n| Vendor | Perplexity | Carbon ScaleDown, Inc. |\n| Hosted endpoint | `https://api.perplexity.ai/v1/decisions` | `https://api.scaledown.xyz` |\n| Transports | HTTP | HTTP |\n| Auth | API key | API key |\n| Pricing | Pay per use | Pay per use |\n| Price for decision models | free | not published |\n| x402 | no | no |\n| Licence | Apache-2.0 for the published weights. The hosted Decisions API is a proprietary service | Proprietary hosted models under ScaleDown's Terms of Service. The langchain-scaledown integration is MIT |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-10-05 | 2026-10-14 |\n| Terms last updated | couldn't be read | couldn't be read |\n| Privacy policy last updated | couldn't be read | couldn't be read |\n| Customer content may train models | couldn't be read | couldn't be read |\n| Terms restrict automated access | couldn't be read | couldn't be read |\n| Terms restrict benchmarking | couldn't be read | couldn't be read |\n| Terms or service can change without notice | couldn't be read | couldn't be read |\n| Arbitration or class-action waiver | couldn't be read | couldn't be read |\n| Popularity | none | 0 stars |\n\n## Verdicts\n\n**pplx-decider.** The hosted Decisions API has an OpenAPI description, typed questions, documented limits and a published price of $0.02 per million input tokens, and the v1.1 weights are public under Apache-2.0. The API is days old, the official Python SDK has no method for it, and the governing terms and privacy notice could not be read on 9 October 2026.\n\n**ScaleDown.** Classify answers Jev-shaped `choice`, `noul` and `score` questions with probabilities, and Extract returns values with confidences and character offsets, at $0.05 per million input tokens with output free. There is no status page, no published rate limit and no public changelog, and the site's compliance claims contradict each other.\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. Set `model` on every request. A missing or unknown model returns 400, and the guide shows a `-latest` name rejected.\n3. Resize images to 2,048 tiles of 32 by 32 pixels or fewer before sending. Larger images end in a 504 after about a minute.\n4. Check the HTTP status before parsing an error. 404 and 405 have empty bodies, 504 can be HTML, and `error.code` changes type.\n5. For the weights, use the repository's `autojev` code. The card says default causal inference does not reproduce the evaluated setup.\n\n### ScaleDown\n\n1. Send several questions about one item in one `/v1/scaledown` call. Each becomes its own Classify call and the usage is summed\n2. Pin `classify-1`, `extract-1` or `summarize-1` once you've tuned thresholds on your own labelled cases\n3. Set `context_chars` to 0 and use `top_n` on Extract unless you need the 500 characters of context each side\n4. Set `reasoning: false` on /classify when you only need the label. The reasoning call bills its input at 2x\n5. Back off and retry on 429, 502 and 504. No limits are published and calls have no side effects\n\n## Questions\n\n### Which is better for AI agents, pplx-decider or ScaleDown?\n\npplx-decider scores 62.9 (B) on agent readiness against ScaleDown's 48.6 (D), and leads in 4 of 7 scored categories. ScaleDown leads on payments \u0026 pricing.\n\n### Do pplx-decider and ScaleDown need an API key?\n\nBoth need an API key.\n\n### Can an agent call pplx-decider and ScaleDown without installing anything?\n\nYes. pplx-decider has a hosted endpoint at https://api.perplexity.ai/v1/decisions and ScaleDown at https://api.scaledown.xyz.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/pplx-decider-vs-scaledown.json, and with the fewest tokens: https://www.anchorterminal.com/compare/pplx-decider-vs-scaledown.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"pplx-decider\", \"b\": \"scaledown\"}`. From a terminal: `anchor compare pplx-decider scaledown`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/pplx-decider.json and https://www.anchorterminal.com/api/v1/tools/scaledown.json\n\n## Other comparisons with pplx-decider or ScaleDown\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 ScaleDown](https://www.anchorterminal.com/compare/celeris-1-decision-vs-scaledown.md)\n- [Clef vs pplx-decider](https://www.anchorterminal.com/compare/cloudflare-clef-vs-pplx-decider.md)\n- [Clef vs ScaleDown](https://www.anchorterminal.com/compare/cloudflare-clef-vs-scaledown.md)\n- [Laya vs pplx-decider](https://www.anchorterminal.com/compare/convai-laya-vs-pplx-decider.md)\n- [Laya vs ScaleDown](https://www.anchorterminal.com/compare/convai-laya-vs-scaledown.md)\n- [Decider vs pplx-decider](https://www.anchorterminal.com/compare/decider-vs-pplx-decider.md)\n- [Decider vs ScaleDown](https://www.anchorterminal.com/compare/decider-vs-scaledown.md)\n- [Decision 3.0 vs pplx-decider](https://www.anchorterminal.com/compare/decision-3-vs-pplx-decider.md)\n- [Decision 3.0 vs ScaleDown](https://www.anchorterminal.com/compare/decision-3-vs-scaledown.md)\n- [GLiClass vs pplx-decider](https://www.anchorterminal.com/compare/gliclass-vs-pplx-decider.md)\n- [GLiClass vs ScaleDown](https://www.anchorterminal.com/compare/gliclass-vs-scaledown.md)\n- [Kev vs pplx-decider](https://www.anchorterminal.com/compare/jaredpalmer-kev-vs-pplx-decider.md)\n- [Kev vs ScaleDown](https://www.anchorterminal.com/compare/jaredpalmer-kev-vs-scaledown.md)\n- [Liquid d1 vs pplx-decider](https://www.anchorterminal.com/compare/liquid-d1-vs-pplx-decider.md)\n- [Liquid d1 vs ScaleDown](https://www.anchorterminal.com/compare/liquid-d1-vs-scaledown.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 ScaleDown](https://www.anchorterminal.com/compare/microsoft-decision-1-vs-scaledown.md)\n- [Drex 1.5 vs pplx-decider](https://www.anchorterminal.com/compare/nace-drex-vs-pplx-decider.md)\n- [Drex 1.5 vs ScaleDown](https://www.anchorterminal.com/compare/nace-drex-vs-scaledown.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 ScaleDown](https://www.anchorterminal.com/compare/openai-decisions-api-vs-scaledown.md)\n- [pplx-decider vs SPEV](https://www.anchorterminal.com/compare/pplx-decider-vs-sprag-spev.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- [ScaleDown vs SPEV](https://www.anchorterminal.com/compare/scaledown-vs-sprag-spev.md)\n- [ScaleDown vs Strands Decider 2B](https://www.anchorterminal.com/compare/scaledown-vs-strands-decider.md)\n- [ScaleDown vs Jev](https://www.anchorterminal.com/compare/scaledown-vs-typesafe-jev.md)\n- [ScaleDown vs Vela 2.0](https://www.anchorterminal.com/compare/scaledown-vs-vela.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "attributionRequired": true, "credit": "CC BY 4.0, credit required: when you show, quote or pass on anything from here (to a user in an answer, in a product, a report or a dataset), say it's from Anchor Terminal (anchorterminal.com) and link the page or API address you took it from. Reviews also credit their author.", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-15", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.4", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run", "terms": "https://www.anchorterminal.com/terms/#data" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "pplx-decider vs ScaleDown", "url": "" } ], "description": "pplx-decider scores 62.9 (B) to ScaleDown's 48.6 (D) for decision models. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "pplx-decider B 62.9", "ScaleDown D 48.6", "scores" ], "h1": "pplx-decider vs ScaleDown", "image": "https://www.anchorterminal.com/assets/og/compare-pplx-decider-vs-scaledown.png", "path": "/compare/pplx-decider-vs-scaledown", "published": "2026-10-01", "section": "tools", "title": "pplx-decider vs ScaleDown for AI agents in 2026: scores and prices", "toc": null, "updated": "2026-10-15", "url": "https://www.anchorterminal.com/compare/pplx-decider-vs-scaledown" }, "tokens": { "markdown": 2700, "slim": 580 }, "version": 1 }