{ "data": { "a": { "slug": "celeris-1-decision", "name": "Celeris-1 Decision", "vendor": "Celeris (Marqo Inc)", "vendorUrl": "https://celeris.ai", "kind": "model", "category": "decision-models", "summary": "Celeris-1 Decision is a hosted multimodal diffusion model from Celeris, a Marqo Inc research lab. Its HTTP API answers typed questions about text, structured data and images with probabilities and optional explanations.", "url": "https://www.anchorterminal.com/tools/celeris-1-decision", "markdownUrl": "https://www.anchorterminal.com/tools/celeris-1-decision.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/celeris-1-decision.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/celeris-1-decision.json", "license": "Proprietary hosted model under Celeris terms of service", "transports": [ "http" ], "remoteUrl": "https://inference.celeris.ai/celeris-1-decision/v1/systemone", "packages": [], "auth": "api-key", "authNotes": "Bearer ck_ API key from an activated workspace. Signup, a payment method and prepaid credit are required. Keys can be created, rotated and revoked in the console; changes can take one minute. Keys share workspace credit, with no per-key limits. Activation is usually immediate but can queue when capacity is full.", "pricing": "usage", "pricingNotes": "$0.04 per million input tokens, including cached input, with output tokens free. Images and request overhead count as input. Card-funded purchases start at $5 and credit expires after 30 days. No card-free tier was found. Requests still processing after disconnection may be charged. Executed order forms can override self-service terms.", "priceSummary": "Pay per use", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 interface found in the reviewed pricing and API documentation on 9 October 2026. HTTP 402 means exhausted prepaid credit.", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-09" }, "docsUrl": "https://docs.celeris.ai/decisions", "llmsTxt": "https://docs.celeris.ai/llms.txt", "capabilities": [ "inference.decision" ], "tags": [ "hosted", "model", "closed-source", "multimodal", "llms-txt", "usage-priced", "status-page", "beta" ], "lastRelease": "2026-10-08", "graded": true, "anchor": { "graded": true, "score": 49.3, "grade": "D", "agentReady": false, "rank": 798, "ranked": true, "rankOf": 954, "categoryRank": 12, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 80, "maintenance": 40, "payments": 20, "reliability": 40, "schema": 60, "security": 45, "transparency": 53 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-09" }, "negative": 0, "verdict": "Typed probabilities, image inputs and optional explanations suit routing and classification inside an agent. Both System One and OpenAI Decisions request formats are documented. The service remains early access under its terms, activation can queue, and prepaid credit expires after 30 days. The published accuracy and latency figures are Celeris measurements, not Anchor Terminal tests.", "bestFor": "Multimodal classification, routing and bounded decisions with probabilities and optional explanations", "strengths": [ "Typed binary, choice and score answers, with multiple questions about one state per request", "Text, JSON and images through System One, with optional explanations", "Decision inputs cost $0.04 per million tokens and outputs are free", "Markdown documentation, error recovery guidance and revocable workspace keys" ], "weaknesses": [ "Early-access terms and capacity-dependent workspace activation", "Prepaid credit expires after 30 days, with a $5 minimum card purchase", "No numeric request-rate guarantee or decision-model context window found", "No explicit API training exclusion or prompt-retention period found in the reviewed policies", "Closed weights and no fine-tuning in this release" ], "agentNotes": [ "Use the decision model path and matching model field. This model has no chat, Responses or models endpoint.", "Use at most 512 questions per request, or 64 with explanations. Both endpoints reject streaming.", "Preserve x_celeris in a custom Jev SDK response model when reading explanations. The default response type drops it.", "Retry 429 with Retry-After and backoff. Stop on 402 until workspace credit is replenished.", "Read usage.input_tokens for cost, including images and request overhead. Track credit expiry separately from token consumption." ], "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": 49.3 } ], "editorialScores": { "ergonomics": 80, "maintenance": 40, "payments": 20, "reliability": 40, "schema": 60, "security": 45, "transparency": 45 }, "provenanceScore": 61 }, "connect": { "http": "curl https://inference.celeris.ai/celeris-1-decision/v1/systemone \\\n -H \"Authorization: Bearer $CELERIS_API_KEY\" \\\n -H \"Content-Type: application/json\" \\\n -d '{\"model\":\"celeris-1-decision\",\"state\":\"The customer requests a refund for a duplicate charge.\",\"questions\":{\"refund\":{\"type\":\"noul\",\"instructions\":\"The customer is asking for a refund.\"}},\"x_celeris\":{\"explain\":true}}'" }, "letme": { "capability": "https://letme.dev/inference.decision", "tool": "https://letme.dev/celeris-1-decision" }, "area": "models", "unitPrices": [ { "item": "Decision input", "unit": "1m-tokens", "usd": 0.04, "note": "Includes cached input and image tokens. Prepaid credit expires after 30 days." }, { "item": "Decision output", "unit": "1m-tokens", "usd": 0, "note": "Includes optional explanations." } ], "provenance": { "legalEntity": "Marqo Inc", "domain": "celeris.ai", "domainRegistered": "", "endpointOnVendorDomain": true, "terms": "https://celeris.ai/terms", "privacy": "https://celeris.ai/privacy", "statusPage": "https://status.celeris.ai/", "changelog": "", "securityTxt": "none", "checked": "2026-10-09", "notes": [ "Terms dated 8 September 2026 and privacy notice dated 23 July 2026 name Marqo Inc operating as Celeris.", "No dedicated decision-model changelog or dated deprecation policy found.", "The public status history records an 11-hour-20-minute outage for the separate Celeris-1 model on 19 August 2026. It predates this decision model and is not counted as its outage.", "The standard well-known security.txt and docs OpenAPI JSON addresses returned HTTP 404. Domain registration was not checked." ], "score": 61 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/celeris-1-decision.json", "live": { "slug": "celeris-1-decision", "probe": { "target": "https://inference.celeris.ai/celeris-1-decision/v1/systemone", "method": "get", "lastAt": "2026-10-10T13:02:06.416174673Z", "lastOk": true, "lastStatus": 404, "lastMs": 352, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 341, "p95ms24h": 406, "samples24h": 246, "samples30d": 283, "days": [ { "date": "2026-10-09", "probes": 149, "ok": 149 }, { "date": "2026-10-10", "probes": 134, "ok": 134 } ] }, "vendorStatus": { "page": "https://status.celeris.ai", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-10T11:52:32.488419098Z" }, "securityTxt": { "url": "https://celeris.ai/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-09T15:40:20.739979217Z" }, "llmsTxt": { "url": "https://docs.celeris.ai/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-09T14:01:34.685015829Z" }, "pages": [ { "url": "https://celeris.ai/privacy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-09T18:33:39.222904987Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "9bcdb0332751" }, { "url": "https://celeris.ai/terms", "kind": "terms", "status": 200, "checkedAt": "2026-10-09T18:33:41.664457244Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "e1b9021a33fe" } ], "updatedAt": "2026-10-10T13:02:06.416174673Z" } }, "answer": "Drex 1.5 scores 69.7 (B) on agent readiness against Celeris-1 Decision's 49.3 (D), and leads in every scored category.", "b": { "slug": "nace-drex", "name": "Drex 1.5", "vendor": "Nace AI, Inc. (Nace.AI)", "vendorUrl": "https://www.nace.ai", "kind": "model", "category": "decision-models", "summary": "Drex 1.5 is Nace.AI's decision model. It returns a probability for each option in typed yes or no, choice and score questions. Hosted at console.nace.ai, with open weights under the Nace AI Open RAIL-M licence.", "url": "https://www.anchorterminal.com/tools/nace-drex", "markdownUrl": "https://www.anchorterminal.com/tools/nace-drex.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/nace-drex.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/nace-drex.json", "repo": "https://huggingface.co/nace-ai/drex-v1.5", "license": "Hosted API under the Nace AI Terms of Service, last updated 5 May 2026. Weights under the Nace AI Open RAIL-M licence (modified, version 1.0, October 2026), which is not an open-source licence. Businesses above $1 million in revenue or funding need a separate commercial licence, and competing products are excluded. The bundled code/kev package, derived from Jared Palmer's Kev (https://github.com/jaredpalmer/kev), and the GitHub repository are Apache-2.0, and the agent skill is MIT.", "transports": [ "http" ], "remoteUrl": "https://console.nace.ai/v1/systemone", "packages": [ { "registry": "pypi", "name": "nace-sdk" }, { "registry": "npm", "name": "nace-sdk" }, { "registry": "pypi", "name": "nace-mcp" } ], "auth": "api-key", "authNotes": "A key starting nace_sk_, created in the Console dashboard after an emailed-code sign-in and sent as a Bearer header. The key is shown once. An account can hold three active keys, which share its credit and rate limits. Keys can be revoked and rotated, and no scopes are documented. An agent cannot create its own account, because sign-in needs an emailed code.", "pricing": "freemium", "pricingNotes": "drex-v1.5 costs $0.05 per million input tokens, and output tokens are not billed. The price is on the public pricing reference without a login. New accounts get $25 of signup credit, which expires three months after sign-up, and a $5 monthly credit. Each mailbox gets the signup credit once, and disposable domains get none. Without a saved card, requests stop at zero credit with 402 insufficient_credit. A saved card turns on pay-as-you-go, billed every 14 days.", "priceSummary": "Freemium", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the pricing reference, the API reference or the OpenAPI document (checked 10 October 2026).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": 318, "pypiWeekly": 156, "asOf": "2026-10-10" }, "docsUrl": "https://console.nace.ai/docs/drex", "llmsTxt": "https://drex.nace.ai/llms.txt", "openapi": "https://console.nace.ai/openapi.json", "capabilities": [ "inference.decision" ], "tags": [ "hosted", "model", "open-weights", "llms-txt", "openapi", "python", "typescript", "mcp", "free-tier", "usage-priced", "status-page" ], "lastRelease": "2026-09-28", "graded": true, "anchor": { "graded": true, "score": 69.7, "grade": "B", "agentReady": false, "rank": 172, "ranked": true, "rankOf": 954, "categoryRank": 2, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 85, "maintenance": 65, "payments": 40, "reliability": 80, "schema": 88, "security": 65, "transparency": 63 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-10" }, "negative": -2, "negativeNotes": [ "10 October 2026, read against the public board generated 28 September 2026. The site at www.nace.ai/drex states a Decision Index 0.2.1 score of 58.28 and says Drex 1.5 leads all 71 entries under 10B parameters. The 0.2.1 board has 70 entries, none of them Drex, and its top score is Surogate Rune 26B-A4B v3 at 57.44 (https://huggingface.co/spaces/multimodalart/jev-decision-index/resolve/main/data/index-v0.2.1.json). The Hugging Face card does say the Drex figure is Nace's own run, but the site does not. Deducted 2 as a misleading claim." ], "verdict": "The hosted endpoint has a public OpenAPI document, published limits and pinned model versions, at $0.05 per million input tokens with no output charge. The #1 under 10B claim rests on Nace's own run, since Drex is absent from both public boards. Weights carry Open RAIL-M, which requires a commercial licence above $1 million in revenue or funding.", "bestFor": "Routing, triage and yes or no gates inside an agent, where the caller supplies the options and acts on the probabilities. Suited to hosted use at a low per-token price, or to open weights where the licence fits.", "strengths": [ "Public OpenAPI 3.1 document for POST /v1/systemone, plus llms.txt. Request limits are 512 questions, a 1,048,576-byte body and a 131,072-token state.", "Price per input token on the pricing reference, readable without a login. drex-v1.5 costs $0.05 per million, and output tokens are not billed.", "Rate limits with numbers for the free tier (120 requests a minute) and the paid tier (600), and Retry-After on 429 and 529 responses.", "Pinned model ids (drex-v1.0, drex-v1.5) that stay on their version, with a dated record of the drex-latest alias moves.", "Official Python and TypeScript SDKs (nace-sdk), an MCP server (nace-mcp) with 21 tools, and the weights on Hugging Face." ], "weaknesses": [ "The rank 1 claim comes from Nace's own run on Decision Index 0.3.1, and Drex is not on the public board for 0.3 or 0.2.1.", "The weights are under Open RAIL-M, which restricts commercial use above $1 million in revenue or funding and excludes competing products.", "The data statements conflict. The developer page says no training on your data, while the privacy notice allows input and output to improve the Services.", "No SLA, changelog or readable incident list for the model. Drex has been public for 12 days.", "Sign-up needs an emailed code and a browser step. The $25 signup credit is granted once per mailbox and expires after three months." ], "agentNotes": [ "Call https://console.nace.ai/v1/systemone with Authorization: Bearer nace_sk_..., and pin model drex-v1.5 rather than drex-latest in production.", "Stop on 402 insufficient_credit or 402 payment_required until credit is topped up or the unpaid invoice is paid.", "Retry 429 and 529 after retry-after-ms. On a 422 for an unknown model, use one of the ids the error message lists.", "Keep state below 131,072 tokens and the body below 1,048,576 bytes, and send at most 512 questions per request.", "Keep the key on a server. A key in browser code is exposed, and the /v1 routes send no Access-Control-Allow-Origin header.", "Check usage.input_tokens and the usage CSV after retries, since /v1/systemone documents no idempotency key." ], "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": 69.7 } ], "editorialScores": { "ergonomics": 85, "maintenance": 65, "payments": 40, "reliability": 80, "schema": 88, "security": 65, "transparency": 50 }, "provenanceScore": 75 }, "connect": { "install": "pip install nace-sdk # or: npm install nace-sdk", "http": "curl https://console.nace.ai/v1/systemone \\\n -H \"Authorization: Bearer $NACE_API_KEY\" \\\n -H \"Content-Type: application/json\" \\\n -d '{\"model\":\"drex-v1.5\",\"state\":\"I was charged twice for order A-104.\",\"questions\":{\"refund\":{\"type\":\"noul\",\"instructions\":\"Does the customer ask for a refund?\"}}}'", "claudeCode": "uvx nace-mcp login\nclaude mcp add nace -- uvx nace-mcp" }, "letme": { "capability": "https://letme.dev/inference.decision", "tool": "https://letme.dev/nace-drex" }, "area": "models", "unitPrices": [ { "item": "Drex 1.5 input", "unit": "1m-tokens", "usd": 0.05, "note": "Per input token, as reported in usage.input_tokens. The pinned drex-v1.0 costs $0.04." }, { "item": "Drex 1.5 output", "unit": "1m-tokens", "usd": 0, "note": "Reported in usage.output_tokens and not billed." } ], "provenance": { "legalEntity": "Nace AI, Inc.", "domain": "nace.ai", "domainRegistered": "", "endpointOnVendorDomain": true, "terms": "https://www.nace.ai/policies/terms-of-service", "privacy": "https://www.nace.ai/policies/privacy-policy", "statusPage": "https://status.nace.ai/", "changelog": "", "securityTxt": "valid", "checked": "2026-10-10", "notes": [ "The Terms were last updated 5 May 2026, before Drex was released, and no Drex-specific service terms were found.", "The security.txt expires on 9 October 2027. The console changelog URL returned 500 and nace.ai/changelog returned 404.", "The Hugging Face cardData field marks the repository as private, while the Hub API returns it as public and the files download without an account." ], "score": 75 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/nace-drex.json", "live": { "slug": "nace-drex", "probe": { "target": "https://console.nace.ai/v1/systemone", "method": "get", "lastAt": "2026-10-10T13:02:21.179574177Z", "lastOk": true, "lastStatus": 405, "lastMs": 294, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 208, "p95ms24h": 294, "samples24h": 21, "samples30d": 21, "days": [ { "date": "2026-10-10", "probes": 21, "ok": 21 } ] }, "vendorStatus": { "page": "https://status.nace.ai", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-10T11:53:13.006193955Z" }, "updatedAt": "2026-10-10T13:02:21.179574177Z" } }, "facts": [ { "a": "Model API", "b": "Model API", "name": "Kind" }, { "a": "Celeris (Marqo Inc)", "b": "Nace AI, Inc. (Nace.AI)", "name": "Vendor" }, { "a": "https://inference.celeris.ai/celeris-1-decision/v1/systemone", "b": "https://console.nace.ai/v1/systemone", "name": "Hosted endpoint" }, { "a": "HTTP", "b": "HTTP", "name": "Transports" }, { "a": "API key", "b": "API key", "name": "Auth" }, { "a": "Pay per use", "b": "Freemium", "name": "Pricing" }, { "a": "free", "b": "not published", "name": "Price for decision models" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Proprietary hosted model under Celeris terms of service", "b": "Hosted API under the Nace AI Terms of Service, last updated 5 May 2026. Weights under the Nace AI Open RAIL-M licence (modified, version 1.0, October 2026), which is not an open-source licence. Businesses above $1 million in revenue or funding need a separate commercial licence, and competing products are excluded. The bundled code/kev package, derived from Jared Palmer's Kev (https://github.com/jaredpalmer/kev), and the GitHub repository are Apache-2.0, and the agent skill is MIT.", "name": "Licence" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "yes", "name": "llms.txt" }, { "a": "2026-10-08", "b": "2026-09-28", "name": "Last release" }, { "a": "2026-09-08", "b": "", "name": "Terms last updated" }, { "a": "2026-07-23", "b": "", "name": "Privacy policy last updated" }, { "a": "not found in the text", "b": "", "name": "Customer content may train models" }, { "a": "not found in the text", "b": "", "name": "Terms restrict automated access" }, { "a": "yes", "b": "", "name": "Terms restrict benchmarking" }, { "a": "not found in the text", "b": "", "name": "Terms or service can change without notice" }, { "a": "not found in the text", "b": "", "name": "Arbitration or class-action waiver" }, { "a": "none", "b": "318 npm/wk, 156 PyPI/wk", "name": "Popularity" } ], "faq": [ { "answer": "Drex 1.5 scores 69.7 (B) on agent readiness against Celeris-1 Decision's 49.3 (D), and leads in every scored category.", "question": "Which is better for AI agents, Celeris-1 Decision or Drex 1.5?" }, { "answer": "Both need an API key.", "question": "Do Celeris-1 Decision and Drex 1.5 need an API key?" }, { "answer": "Yes. Celeris-1 Decision has a hosted endpoint at https://inference.celeris.ai/celeris-1-decision/v1/systemone and Drex 1.5 at https://console.nace.ai/v1/systemone.", "question": "Can an agent call Celeris-1 Decision and Drex 1.5 without installing anything?" } ], "goodFor": [ { "aheadOn": null, "also": null, "goodFor": "Multimodal classification, routing and bounded decisions with probabilities and optional explanations", "slug": "celeris-1-decision", "watchFor": "Early-access terms and capacity-dependent workspace activation" }, { "aheadOn": [ "Reliability, 80 against 40", "Schema \u0026 documentation, 88 against 60", "Agent ergonomics, 85 against 80", "Security \u0026 auth, 65 against 45", "Payments \u0026 pricing, 40 against 20", "Maintenance \u0026 community, 65 against 40", "Transparency \u0026 trust, 63 against 53" ], "also": null, "goodFor": "Routing, triage and yes or no gates inside an agent, where the caller supplies the options and acts on the probabilities. Suited to hosted use at a low per-token price, or to open weights where the licence fits.", "slug": "nace-drex", "watchFor": "The rank 1 claim comes from Nace's own run on Decision Index 0.3.1, and Drex is not on the public board for 0.3 or 0.2.1." } ], "job": { "capability": "inference.decision", "name": "Decision models" }, "others": [ { "json": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-cloudflare-clef.json", "title": "Celeris-1 Decision vs Clef", "url": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-cloudflare-clef" }, { "json": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-convai-laya.json", "title": "Celeris-1 Decision vs Laya", "url": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-convai-laya" }, { "json": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-decider.json", "title": "Celeris-1 Decision vs Decider", "url": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-decider" }, { "json": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-gliclass.json", "title": "Celeris-1 Decision vs GLiClass", "url": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-gliclass" }, { "json": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-jaredpalmer-kev.json", "title": "Celeris-1 Decision vs Kev", "url": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-jaredpalmer-kev" }, { "json": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-liquid-d1.json", "title": "Celeris-1 Decision vs Liquid d1", "url": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-liquid-d1" }, { "json": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-microsoft-decision-1.json", "title": "Celeris-1 Decision vs Microsoft-Decision-1", "url": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-microsoft-decision-1" }, { "json": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-openai-decisions-api.json", "title": "Celeris-1 Decision vs OpenAI Decisions API", "url": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-openai-decisions-api" }, { "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-strands-decider.json", "title": "Celeris-1 Decision vs Strands Decider 2B", "url": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-strands-decider" }, { "json": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-typesafe-jev.json", "title": "Celeris-1 Decision vs Jev", "url": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-typesafe-jev" }, { "json": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-vela.json", "title": "Celeris-1 Decision vs Vela 2.0", "url": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-vela" }, { "json": "https://www.anchorterminal.com/compare/cloudflare-clef-vs-nace-drex.json", "title": "Clef vs Drex 1.5", "url": "https://www.anchorterminal.com/compare/cloudflare-clef-vs-nace-drex" }, { "json": "https://www.anchorterminal.com/compare/convai-laya-vs-nace-drex.json", "title": "Laya vs Drex 1.5", "url": "https://www.anchorterminal.com/compare/convai-laya-vs-nace-drex" }, { "json": "https://www.anchorterminal.com/compare/decider-vs-nace-drex.json", "title": "Decider vs Drex 1.5", "url": "https://www.anchorterminal.com/compare/decider-vs-nace-drex" }, { "json": "https://www.anchorterminal.com/compare/gliclass-vs-nace-drex.json", "title": "GLiClass vs Drex 1.5", "url": "https://www.anchorterminal.com/compare/gliclass-vs-nace-drex" }, { "json": "https://www.anchorterminal.com/compare/jaredpalmer-kev-vs-nace-drex.json", "title": "Kev vs Drex 1.5", "url": "https://www.anchorterminal.com/compare/jaredpalmer-kev-vs-nace-drex" }, { "json": "https://www.anchorterminal.com/compare/liquid-d1-vs-nace-drex.json", "title": "Liquid d1 vs Drex 1.5", "url": "https://www.anchorterminal.com/compare/liquid-d1-vs-nace-drex" }, { "json": "https://www.anchorterminal.com/compare/microsoft-decision-1-vs-nace-drex.json", "title": "Microsoft-Decision-1 vs Drex 1.5", "url": "https://www.anchorterminal.com/compare/microsoft-decision-1-vs-nace-drex" }, { "json": "https://www.anchorterminal.com/compare/nace-drex-vs-openai-decisions-api.json", "title": "Drex 1.5 vs OpenAI Decisions API", "url": "https://www.anchorterminal.com/compare/nace-drex-vs-openai-decisions-api" }, { "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-strands-decider.json", "title": "Drex 1.5 vs Strands Decider 2B", "url": "https://www.anchorterminal.com/compare/nace-drex-vs-strands-decider" }, { "json": "https://www.anchorterminal.com/compare/nace-drex-vs-typesafe-jev.json", "title": "Drex 1.5 vs Jev", "url": "https://www.anchorterminal.com/compare/nace-drex-vs-typesafe-jev" }, { "json": "https://www.anchorterminal.com/compare/nace-drex-vs-vela.json", "title": "Drex 1.5 vs Vela 2.0", "url": "https://www.anchorterminal.com/compare/nace-drex-vs-vela" } ], "scores": [ { "by": 40, "celeris-1-decision": 40, "edge": "nace-drex", "key": "reliability", "nace-drex": 80, "name": "Reliability", "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 28, "celeris-1-decision": 60, "edge": "nace-drex", "key": "schema", "nace-drex": 88, "name": "Schema \u0026 documentation", "weight": 13 }, { "by": 5, "celeris-1-decision": 80, "edge": "nace-drex", "key": "ergonomics", "nace-drex": 85, "name": "Agent ergonomics", "weight": 13 }, { "by": 20, "celeris-1-decision": 45, "edge": "nace-drex", "key": "security", "nace-drex": 65, "name": "Security \u0026 auth", "weight": 14 }, { "by": 20, "celeris-1-decision": 20, "edge": "nace-drex", "key": "payments", "nace-drex": 40, "name": "Payments \u0026 pricing", "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 25, "celeris-1-decision": 40, "edge": "nace-drex", "key": "maintenance", "nace-drex": 65, "name": "Maintenance \u0026 community", "weight": 7 }, { "by": 10, "celeris-1-decision": 53, "edge": "nace-drex", "key": "transparency", "nace-drex": 63, "name": "Transparency \u0026 trust", "weight": 7 } ], "summary": "Drex 1.5 scores 69.7 (B) on agent readiness against Celeris-1 Decision's 49.3 (D), and leads in every scored category. Both do decision models.", "verdicts": { "celeris-1-decision": "Typed probabilities, image inputs and optional explanations suit routing and classification inside an agent. Both System One and OpenAI Decisions request formats are documented. The service remains early access under its terms, activation can queue, and prepaid credit expires after 30 days. The published accuracy and latency figures are Celeris measurements, not Anchor Terminal tests.", "nace-drex": "The hosted endpoint has a public OpenAPI document, published limits and pinned model versions, at $0.05 per million input tokens with no output charge. The #1 under 10B claim rests on Nace's own run, since Drex is absent from both public boards. Weights carry Open RAIL-M, which requires a commercial licence above $1 million in revenue or funding." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-nace-drex", "json": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-nace-drex.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-nace-drex.md", "slim": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-nace-drex.min.md" }, "markdown": "Drex 1.5 scores 69.7 (B) on agent readiness against Celeris-1 Decision's 49.3 (D), and leads in every scored category. Both do decision models.\n\n- Celeris-1 Decision: grade D, 49.3/100, rank #798 of 954. Markdown https://www.anchorterminal.com/tools/celeris-1-decision.md · JSON https://www.anchorterminal.com/api/v1/tools/celeris-1-decision.json\n- Drex 1.5: grade B, 69.7/100, rank #172 of 954. Markdown https://www.anchorterminal.com/tools/nace-drex.md · JSON https://www.anchorterminal.com/api/v1/tools/nace-drex.json\n- Best decision models for AI agents: https://www.anchorterminal.com/best/decision-models/index.md\n- All 91 decisions comparisons: https://www.anchorterminal.com/compare/decision-models/index.md\n\n## Which one, for what\n\n### Celeris-1 Decision (D)\n\nGood for: Multimodal classification, routing and bounded decisions with probabilities and optional explanations\n\nWatch for: Early-access terms and capacity-dependent workspace activation\n\n### Drex 1.5 (B)\n\nGood for: Routing, triage and yes or no gates inside an agent, where the caller supplies the options and acts on the probabilities. Suited to hosted use at a low per-token price, or to open weights where the licence fits.\n\nAhead on:\n- Reliability, 80 against 40\n- Schema \u0026 documentation, 88 against 60\n- Agent ergonomics, 85 against 80\n- Security \u0026 auth, 65 against 45\n- Payments \u0026 pricing, 40 against 20\n- Maintenance \u0026 community, 65 against 40\n- Transparency \u0026 trust, 63 against 53\n\nWatch for: The rank 1 claim comes from Nace's own run on Decision Index 0.3.1, and Drex is not on the public board for 0.3 or 0.2.1.\n\n\n## Score by category\n\n| Category | Weight | Celeris-1 Decision | Drex 1.5 | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 40 | 80 | Drex 1.5 +40 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 60 | 88 | Drex 1.5 +28 |\n| Agent ergonomics | 13% (16.2 this run) | 80 | 85 | Drex 1.5 +5 |\n| Security \u0026 auth | 14% (17.5 this run) | 45 | 65 | Drex 1.5 +20 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 20 | 40 | Drex 1.5 +20 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 40 | 65 | Drex 1.5 +25 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 53 | 63 | Drex 1.5 +10 |\n| Negative events | ≤15 | 0 | -2 | |\n| **Total** | | **49.3 · D** | **69.7 · B** | |\n\n## Facts side by side\n\n| Fact | Celeris-1 Decision | Drex 1.5 |\n| --- | --- | --- |\n| Kind | Model API | Model API |\n| Vendor | Celeris (Marqo Inc) | Nace AI, Inc. (Nace.AI) |\n| Hosted endpoint | `https://inference.celeris.ai/celeris-1-decision/v1/systemone` | `https://console.nace.ai/v1/systemone` |\n| Transports | HTTP | HTTP |\n| Auth | API key | API key |\n| Pricing | Pay per use | Freemium |\n| Price for decision models | free | not published |\n| x402 | no | no |\n| Licence | Proprietary hosted model under Celeris terms of service | Hosted API under the Nace AI Terms of Service, last updated 5 May 2026. Weights under the Nace AI Open RAIL-M licence (modified, version 1.0, October 2026), which is not an open-source licence. Businesses above $1 million in revenue or funding need a separate commercial licence, and competing products are excluded. The bundled code/kev package, derived from Jared Palmer's Kev (https://github.com/jaredpalmer/kev), and the GitHub repository are Apache-2.0, and the agent skill is MIT. |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-10-08 | 2026-09-28 |\n| Terms last updated | 2026-09-08 | |\n| Privacy policy last updated | 2026-07-23 | |\n| Customer content may train models | not found in the text | |\n| Terms restrict automated access | not found in the text | |\n| Terms restrict benchmarking | yes | |\n| Terms or service can change without notice | not found in the text | |\n| Arbitration or class-action waiver | not found in the text | |\n| Popularity | none | 318 npm/wk, 156 PyPI/wk |\n\n## Verdicts\n\n**Celeris-1 Decision.** Typed probabilities, image inputs and optional explanations suit routing and classification inside an agent. Both System One and OpenAI Decisions request formats are documented. The service remains early access under its terms, activation can queue, and prepaid credit expires after 30 days. The published accuracy and latency figures are Celeris measurements, not Anchor Terminal tests.\n\n**Drex 1.5.** The hosted endpoint has a public OpenAPI document, published limits and pinned model versions, at $0.05 per million input tokens with no output charge. The #1 under 10B claim rests on Nace's own run, since Drex is absent from both public boards. Weights carry Open RAIL-M, which requires a commercial licence above $1 million in revenue or funding.\n\n## Before you call either\n\n### Celeris-1 Decision\n\n1. Use the decision model path and matching model field. This model has no chat, Responses or models endpoint.\n2. Use at most 512 questions per request, or 64 with explanations. Both endpoints reject streaming.\n3. Preserve x_celeris in a custom Jev SDK response model when reading explanations. The default response type drops it.\n4. Retry 429 with Retry-After and backoff. Stop on 402 until workspace credit is replenished.\n5. Read usage.input_tokens for cost, including images and request overhead. Track credit expiry separately from token consumption.\n\n### Drex 1.5\n\n1. Call https://console.nace.ai/v1/systemone with Authorization: Bearer nace_sk_..., and pin model drex-v1.5 rather than drex-latest in production.\n2. Stop on 402 insufficient_credit or 402 payment_required until credit is topped up or the unpaid invoice is paid.\n3. Retry 429 and 529 after retry-after-ms. On a 422 for an unknown model, use one of the ids the error message lists.\n4. Keep state below 131,072 tokens and the body below 1,048,576 bytes, and send at most 512 questions per request.\n5. Keep the key on a server. A key in browser code is exposed, and the /v1 routes send no Access-Control-Allow-Origin header.\n6. Check usage.input_tokens and the usage CSV after retries, since /v1/systemone documents no idempotency key.\n\n## Questions\n\n### Which is better for AI agents, Celeris-1 Decision or Drex 1.5?\n\nDrex 1.5 scores 69.7 (B) on agent readiness against Celeris-1 Decision's 49.3 (D), and leads in every scored category.\n\n### Do Celeris-1 Decision and Drex 1.5 need an API key?\n\nBoth need an API key.\n\n### Can an agent call Celeris-1 Decision and Drex 1.5 without installing anything?\n\nYes. Celeris-1 Decision has a hosted endpoint at https://inference.celeris.ai/celeris-1-decision/v1/systemone and Drex 1.5 at https://console.nace.ai/v1/systemone.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/celeris-1-decision-vs-nace-drex.json, and with the fewest tokens: https://www.anchorterminal.com/compare/celeris-1-decision-vs-nace-drex.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"celeris-1-decision\", \"b\": \"nace-drex\"}`. From a terminal: `anchor compare celeris-1-decision nace-drex`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/celeris-1-decision.json and https://www.anchorterminal.com/api/v1/tools/nace-drex.json\n\n## Other comparisons with Celeris-1 Decision or Drex 1.5\n\n- [Celeris-1 Decision vs Clef](https://www.anchorterminal.com/compare/celeris-1-decision-vs-cloudflare-clef.md)\n- [Celeris-1 Decision vs Laya](https://www.anchorterminal.com/compare/celeris-1-decision-vs-convai-laya.md)\n- [Celeris-1 Decision vs Decider](https://www.anchorterminal.com/compare/celeris-1-decision-vs-decider.md)\n- [Celeris-1 Decision vs GLiClass](https://www.anchorterminal.com/compare/celeris-1-decision-vs-gliclass.md)\n- [Celeris-1 Decision vs Kev](https://www.anchorterminal.com/compare/celeris-1-decision-vs-jaredpalmer-kev.md)\n- [Celeris-1 Decision vs Liquid d1](https://www.anchorterminal.com/compare/celeris-1-decision-vs-liquid-d1.md)\n- [Celeris-1 Decision vs Microsoft-Decision-1](https://www.anchorterminal.com/compare/celeris-1-decision-vs-microsoft-decision-1.md)\n- [Celeris-1 Decision vs OpenAI Decisions API](https://www.anchorterminal.com/compare/celeris-1-decision-vs-openai-decisions-api.md)\n- [Celeris-1 Decision vs pplx-decider](https://www.anchorterminal.com/compare/celeris-1-decision-vs-pplx-decider.md)\n- [Celeris-1 Decision vs Strands Decider 2B](https://www.anchorterminal.com/compare/celeris-1-decision-vs-strands-decider.md)\n- [Celeris-1 Decision vs Jev](https://www.anchorterminal.com/compare/celeris-1-decision-vs-typesafe-jev.md)\n- [Celeris-1 Decision vs Vela 2.0](https://www.anchorterminal.com/compare/celeris-1-decision-vs-vela.md)\n- [Clef vs Drex 1.5](https://www.anchorterminal.com/compare/cloudflare-clef-vs-nace-drex.md)\n- [Laya vs Drex 1.5](https://www.anchorterminal.com/compare/convai-laya-vs-nace-drex.md)\n- [Decider vs Drex 1.5](https://www.anchorterminal.com/compare/decider-vs-nace-drex.md)\n- [GLiClass vs Drex 1.5](https://www.anchorterminal.com/compare/gliclass-vs-nace-drex.md)\n- [Kev vs Drex 1.5](https://www.anchorterminal.com/compare/jaredpalmer-kev-vs-nace-drex.md)\n- [Liquid d1 vs Drex 1.5](https://www.anchorterminal.com/compare/liquid-d1-vs-nace-drex.md)\n- [Microsoft-Decision-1 vs Drex 1.5](https://www.anchorterminal.com/compare/microsoft-decision-1-vs-nace-drex.md)\n- [Drex 1.5 vs OpenAI Decisions API](https://www.anchorterminal.com/compare/nace-drex-vs-openai-decisions-api.md)\n- [Drex 1.5 vs pplx-decider](https://www.anchorterminal.com/compare/nace-drex-vs-pplx-decider.md)\n- [Drex 1.5 vs Strands Decider 2B](https://www.anchorterminal.com/compare/nace-drex-vs-strands-decider.md)\n- [Drex 1.5 vs Jev](https://www.anchorterminal.com/compare/nace-drex-vs-typesafe-jev.md)\n- [Drex 1.5 vs Vela 2.0](https://www.anchorterminal.com/compare/nace-drex-vs-vela.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-10", "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" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Celeris-1 Decision vs Drex 1.5", "url": "" } ], "description": "Drex 1.5 scores 69.7 (B) to Celeris-1 Decision's 49.3 (D) for decision models. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "Celeris-1 Decision D 49.3", "Drex 1.5 B 69.7", "scores" ], "h1": "Celeris-1 Decision vs Drex 1.5", "image": "https://www.anchorterminal.com/assets/og/compare-celeris-1-decision-vs-nace-drex.png", "path": "/compare/celeris-1-decision-vs-nace-drex", "published": "2026-10-01", "section": "tools", "title": "Celeris-1 Decision vs Drex 1.5 for AI agents (2026) | Anchor Terminal", "toc": null, "updated": "2026-10-10", "url": "https://www.anchorterminal.com/compare/celeris-1-decision-vs-nace-drex" }, "tokens": { "markdown": 2650, "slim": 780 }, "version": 1 }