{ "data": { "a": { "slug": "mistral-voxtral-transcribe", "name": "Mistral Voxtral Transcribe", "vendor": "Mistral AI", "vendorUrl": "https://mistral.ai", "kind": "model", "category": "speech-to-text", "summary": "Mistral AI's speech-to-text API. Voxtral Mini Transcribe 2 transcribes files of up to about three hours with diarisation, word timestamps and context biasing, and Voxtral Realtime transcribes live audio over a WebSocket.", "url": "https://www.anchorterminal.com/tools/mistral-voxtral-transcribe", "markdownUrl": "https://www.anchorterminal.com/tools/mistral-voxtral-transcribe.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/mistral-voxtral-transcribe.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/mistral-voxtral-transcribe.json", "repo": "https://github.com/mistralai/client-python", "license": "Proprietary hosted service under Mistral's commercial terms. Voxtral Mini 4B Realtime weights and the SDKs are Apache-2.0", "transports": [ "http", "websocket" ], "remoteUrl": "https://api.mistral.ai/v1", "packages": [ { "registry": "pypi", "name": "mistralai" }, { "registry": "npm", "name": "@mistralai/mistralai" } ], "auth": "api-key", "authNotes": "Self-serve bearer key from Studio, bound to one workspace, with an optional expiry date. Browser realtime clients use `rt_` tokens minted at `POST /v1/client/sessions`, valid about 900 seconds for one model (https://docs.mistral.ai/studio/audio/speech_to_text/realtime_transcription/client_auth).", "pricing": "freemium", "pricingNotes": "$0.003 per audio minute for Voxtral Mini Transcribe 2 and $0.006 for Voxtral Mini Transcribe Realtime (model cards on docs.mistral.ai, https://mistral.ai/pricing/api/). Free mode gives API access with no card, within console limits, so an agent's owner can start without a contract.", "priceSummary": "Freemium", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the docs, the OpenAPI document or the pricing page (checked 2026-10-08).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 773, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-08" }, "docsUrl": "https://docs.mistral.ai/studio/audio/speech_to_text", "llmsTxt": "https://docs.mistral.ai/llms.txt", "openapi": "https://docs.mistral.ai/openapi.yaml", "capabilities": [ "speech.stt", "speech.batch", "speech.streaming", "speech.diarisation", "speech.languages" ], "tags": [ "official", "hosted", "model", "eu", "free-tier", "openapi", "llms-txt", "python", "typescript", "streaming", "batch", "open-weights" ], "lastRelease": "2026-02-04", "graded": true, "anchor": { "graded": true, "score": 64.1, "grade": "B", "agentReady": false, "rank": 329, "ranked": true, "rankOf": 842, "categoryRank": 10, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 77, "maintenance": 66, "payments": 40, "reliability": 53, "schema": 85, "security": 70, "transparency": 82 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-08" }, "negative": -3, "negativeNotes": [ "2026-05-12. Compromised `mistralai` 2.4.6 on PyPI ran a credential-harvesting script on import for about three hours, and three `@mistralai/mistralai` versions on npm were also replaced. Mistral published advisory MAI-2026-002, removed the packages and closed its investigation on 14 May. Fixed and documented, so 3 points. https://docs.mistral.ai/resources/security-advisories/MAI-2026-002" ], "verdict": "Batch transcription costs $0.003 a minute and takes one multipart call with a file, a URL or an uploaded file ID. Rate limit numbers are shown only in the console, and timestamps cannot be combined with a set language, nor diarisation with the realtime model.", "bestFor": "Suited to low-cost batch transcription with diarisation in the 13 supported languages, and to live captions or voice agents that can run without speaker labels.", "strengths": [ "Published prices of $0.003 a minute for Voxtral Mini Transcribe 2 and $0.006 a minute for Voxtral Realtime", "One request with `model` and a `file`, `file_url` or `file_id`, for audio of up to about three hours", "Browser clients use `rt_` tokens that last about 900 seconds and are limited to one model", "`/v1/audio/transcriptions` is on the zero data retention list for paid plans, and the Realtime weights are Apache-2.0 on Hugging Face", "OpenAPI document, llms.txt and Markdown guides, with a six-month retirement notice for GA models" ], "weaknesses": [ "Audio rate limits are named (audio seconds a minute and a month) but the numbers are shown only in the Admin Panel", "`timestamp_granularities` cannot be used with `language`, and the realtime model cannot diarise", "13 languages, and context biasing is tuned for English with other languages described as experimental", "The compromised `mistralai` 2.4.6 on PyPI harvested credentials on import for three hours on 12 May 2026", "No SLA found, and status.mistral.ai answered our requests with a bot check on 8 October 2026", "The Studio MCP server has no transcription tool" ], "agentNotes": [ "Send `model=voxtral-mini-latest` and one of `file`, `file_url` or `file_id` as multipart form fields to `/v1/audio/transcriptions`", "Leave `language` out when you ask for `timestamp_granularities`, the docs say the two are not compatible", "Use the batch endpoint for diarisation. `voxtral-mini-transcribe-realtime-2602` does not accept `diarize`", "Pin `voxtral-mini-2602` if output must not change, since `-latest` aliases can move", "Mint browser tokens with `POST /v1/client/sessions` close to connection time and pass them in `Sec-WebSocket-Protocol`, never the API 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": 64.1 } ], "editorialScores": { "ergonomics": 77, "maintenance": 66, "payments": 40, "reliability": 53, "schema": 85, "security": 70, "transparency": 73 }, "provenanceScore": 91 }, "connect": { "install": "pip install mistralai # realtime: pip install \"mistralai[realtime]\" # or: npm i @mistralai/mistralai", "http": "curl --location 'https://api.mistral.ai/v1/audio/transcriptions' \\\n --header \"x-api-key: $MISTRAL_API_KEY\" \\\n --form 'file_url=\"https://docs.mistral.ai/audio/obama.mp3\"' \\\n --form 'model=\"voxtral-mini-latest\"'" }, "letme": { "capability": "https://letme.dev/speech.stt", "tool": "https://letme.dev/mistral-voxtral-transcribe" }, "sameCompany": [ "mistral-api", "mistral-embeddings", "mistral-moderation", "mistral-ocr" ], "area": "voice", "unitPrices": [ { "item": "Voxtral Mini Transcribe 2 (batch)", "unit": "audio-minute", "usd": 0.003 }, { "item": "Voxtral Mini Transcribe Realtime", "unit": "audio-minute", "usd": 0.006 } ], "provenance": { "legalEntity": "Mistral AI (RCS Paris 952 418 325)", "domain": "mistral.ai", "domainRegistered": "2019-05-15", "endpointOnVendorDomain": true, "terms": "https://legal.mistral.ai/terms/commercial-terms-of-service", "privacy": "https://legal.mistral.ai/terms/privacy-policy", "statusPage": "https://status.mistral.ai", "changelog": "https://docs.mistral.ai/resources/changelogs", "securityTxt": "valid", "checked": "2026-10-08", "score": 91 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/mistral-voxtral-transcribe.json", "live": { "slug": "mistral-voxtral-transcribe", "probe": { "target": "https://api.mistral.ai/v1", "method": "get", "lastAt": "2026-10-09T11:00:30.276888458Z", "lastOk": true, "lastStatus": 404, "lastMs": 57, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 48, "p95ms24h": 78, "samples24h": 36, "samples30d": 36, "days": [ { "date": "2026-10-09", "probes": 36, "ok": 36 } ] }, "updatedAt": "2026-10-09T11:00:30.276888458Z" } }, "answer": "Speechmatics Speech-to-Text scores 67.1 (B) on agent readiness against Mistral Voxtral Transcribe's 64.1 (B), and leads in 3 of 7 scored categories. Mistral Voxtral Transcribe leads on schema \u0026 documentation, security \u0026 auth and transparency \u0026 trust.", "b": { "slug": "speechmatics-stt", "name": "Speechmatics Speech-to-Text", "vendor": "Speechmatics", "vendorUrl": "https://www.speechmatics.com", "kind": "model", "category": "speech-to-text", "summary": "Speechmatics' APIs for batch and real-time transcription, including speaker-attributed turns for voice agents.", "url": "https://www.anchorterminal.com/tools/speechmatics-stt", "markdownUrl": "https://www.anchorterminal.com/tools/speechmatics-stt.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/speechmatics-stt.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/speechmatics-stt.json", "repo": "https://github.com/speechmatics/speechmatics-python-sdk", "license": "MIT (SDKs)", "transports": [ "http" ], "remoteUrl": "https://eu1.asr.api.speechmatics.com/v2", "packages": [ { "registry": "npm", "name": "@speechmatics/batch-client" }, { "registry": "npm", "name": "@speechmatics/real-time-client" }, { "registry": "pypi", "name": "speechmatics-batch" }, { "registry": "pypi", "name": "speechmatics-rt" } ], "auth": "api-key", "authNotes": "API key as a Bearer token. Short-lived JWTs for browser and realtime clients, passed as `?jwt=` on the WebSocket URL. A separate management token covers project and key administration.", "pricing": "usage", "pricingNotes": "$100 free credit with no card, then pay as you go per hour of audio, billed to the second. Batch Melia 1 $0.13, Batch Standard $0.24, Batch Enhanced $0.40, Realtime Standard $0.24, Realtime Enhanced $0.43, Linden 1 (Agent STT) $0.16 (was $0.21). Translation adds $0.65 an hour. 20 per cent off usage over 500 hours a month per model, and 33 per cent off if you opt in to model training (https://www.speechmatics.com/pricing).", "priceSummary": "Pay per use", "where": "hosted", "x402": { "level": "no", "evidence": "No x402 or machine payment in the docs or pricing. Card or prepaid credits only (checked 2026-09-30).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 20, "npmWeekly": 58050, "pypiWeekly": 48085, "asOf": "2026-09-30" }, "docsUrl": "https://docs.speechmatics.com", "llmsTxt": "https://docs.speechmatics.com/llms.txt", "capabilities": [ "speech.stt", "speech.streaming", "speech.batch", "speech.diarisation", "speech.languages", "speech.translation" ], "tags": [ "hosted", "no-card", "closed-source", "python", "typescript", "llms-txt", "streaming", "batch", "webhooks", "async-jobs", "enterprise", "self-hosted" ], "lastRelease": "2026-09-22", "graded": true, "anchor": { "graded": true, "score": 67.1, "grade": "B", "agentReady": false, "rank": 243, "ranked": true, "rankOf": 842, "categoryRank": 8, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 80, "maintenance": 75, "payments": 40, "reliability": 70, "schema": 65, "security": 65, "transparency": 75 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "Training is opt-in and real-time audio is not stored. Enhanced transcription costs $0.40 to $0.43 an hour.", "bestFor": "Regulated or privacy-sensitive audio, multilingual batch with Melia 1, and voice agents that want speaker-attributed turns.", "strengths": [ "Training is opt-in only, and realtime audio isn't stored", "ISO/IEC 27001:2022 and SOC 2 Type II", "Transcripts fetched as plain text, JSON or SRT", "Ten dated changelog entries in September 2026", "$100 credit with no card" ], "weaknesses": [ "Enhanced costs $0.40 to $0.43 an hour, above most rivals", "No OpenAPI or AsyncAPI file linked from the docs", "429s carry a reason but no Retry-After or backoff guidance", "Realtime JWTs travel in the WebSocket URL", "Free plan allows 2 realtime sessions" ], "agentNotes": [ "Set `\"model\": \"enhanced\"` explicitly. The default is `standard`", "Use notifications instead of polling. Polling waits 5 seconds by default since the 23 September 2026 change, and `wait=0` turns that off", "Fetch batch transcripts within 7 days. After that the API returns 404 `expired`", "Pass a `fetch_data` URL for files over 1 GB", "Use `/v2/agent` with `linden-1` for live agents instead of the plain realtime path" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 3.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 67.1 } ], "editorialScores": { "ergonomics": 80, "maintenance": 75, "payments": 40, "reliability": 70, "schema": 65, "security": 65, "transparency": 65 }, "provenanceScore": 85 }, "connect": { "http": "curl -X POST https://eu1.asr.api.speechmatics.com/v2/jobs/ -H \"Authorization: Bearer $SPEECHMATICS_API_KEY\" \\\n -F data_file=@call.wav \\\n -F config='{\"type\":\"transcription\",\"transcription_config\":{\"language\":\"en\",\"model\":\"enhanced\",\"diarization\":\"speaker\"}}'" }, "letme": { "capability": "https://letme.dev/speech.stt", "tool": "https://letme.dev/speechmatics-stt" }, "area": "voice", "unitPrices": [ { "item": "Batch Melia 1", "unit": "audio-minute", "usd": 0.0022, "note": "published as $0.13 an hour" }, { "item": "Batch Standard", "unit": "audio-minute", "usd": 0.004, "note": "published as $0.24 an hour" }, { "item": "Batch Enhanced", "unit": "audio-minute", "usd": 0.0067, "note": "published as $0.40 an hour" }, { "item": "Realtime Standard", "unit": "audio-minute", "usd": 0.004, "note": "published as $0.24 an hour" }, { "item": "Realtime Enhanced", "unit": "audio-minute", "usd": 0.0072, "note": "published as $0.43 an hour" }, { "item": "Linden 1 Agent STT", "unit": "audio-minute", "usd": 0.0027, "note": "published as $0.16 an hour, reduced from $0.21" }, { "item": "Translation add-on", "unit": "audio-minute", "usd": 0.0108, "note": "published as $0.65 an hour" } ], "provenance": { "legalEntity": "Cantab Research Ltd", "domain": "speechmatics.com", "domainRegistered": "2006-05-10", "endpointOnVendorDomain": true, "terms": "https://www.speechmatics.com/legal/terms-of-service", "privacy": "https://www.speechmatics.com/legal/privacy-policy", "statusPage": "https://status.speechmatics.com", "changelog": "https://speechmatics.featurebase.app/en/changelog", "securityTxt": "none", "checked": "2026-09-30", "notes": [ "Trades as Speechmatics, company number 05697423 in England and Wales. US customers contract with Speechmatics (USA) Inc., a Delaware company" ], "score": 85 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/speechmatics-stt.json", "live": { "slug": "speechmatics-stt", "probe": { "target": "https://eu1.asr.api.speechmatics.com/v2", "method": "get", "lastAt": "2026-10-09T11:00:37.809435832Z", "lastOk": true, "lastStatus": 200, "lastMs": 70, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 72, "p95ms24h": 240, "samples24h": 260, "samples30d": 2303, "days": [ { "date": "2026-09-30", "probes": 35, "ok": 35 }, { "date": "2026-10-01", "probes": 276, "ok": 276 }, { "date": "2026-10-02", "probes": 248, "ok": 248 }, { "date": "2026-10-03", "probes": 271, "ok": 271 }, { "date": "2026-10-04", "probes": 272, "ok": 272 }, { "date": "2026-10-05", "probes": 272, "ok": 272 }, { "date": "2026-10-06", "probes": 272, "ok": 272 }, { "date": "2026-10-07", "probes": 272, "ok": 272 }, { "date": "2026-10-08", "probes": 268, "ok": 268 }, { "date": "2026-10-09", "probes": 117, "ok": 117 } ] }, "vendorStatus": { "page": "https://status.speechmatics.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-09T10:52:22.293905626Z" }, "versions": [ { "registry": "github", "name": "speechmatics/speechmatics-python-sdk", "version": "rt/v1.2.1", "released": "2026-10-05", "seenAt": "2026-10-08T16:30:10.953537537Z" }, { "registry": "npm", "name": "@speechmatics/batch-client", "version": "5.4.2", "seenAt": "2026-10-08T16:30:06.426587595Z" }, { "registry": "npm", "name": "@speechmatics/real-time-client", "version": "8.5.1", "seenAt": "2026-10-08T16:30:07.482353858Z" }, { "registry": "pypi", "name": "speechmatics-batch", "version": "1.1.0", "released": "2026-10-02", "seenAt": "2026-10-08T16:30:08.871941408Z" }, { "registry": "pypi", "name": "speechmatics-rt", "version": "1.2.1", "released": "2026-10-05", "seenAt": "2026-10-08T16:30:09.060526122Z" } ], "githubStars": 20, "npmWeekly": 39922, "pypiWeekly": 15139, "securityTxt": { "url": "https://speechmatics.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-08T15:38:48.159704777Z" }, "llmsTxt": { "url": "https://docs.speechmatics.com/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-08T14:00:54.533419163Z" }, "domain": { "domain": "speechmatics.com", "registered": "2006-05-10", "source": "https://rdap.verisign.com/com/v1/domain/speechmatics.com", "checkedAt": "2026-10-04T13:05:04.524690122Z" }, "pages": [ { "url": "https://speechmatics.featurebase.app/en/changelog", "kind": "changelog", "status": 200, "checkedAt": "2026-10-08T18:24:36.702869357Z", "changedAt": "2026-10-02T15:24:13.144056184Z", "fingerprint": "b21e619da904" }, { "url": "https://www.speechmatics.com/pricing", "kind": "pricing", "status": 304, "checkedAt": "2026-10-08T18:30:42.621522274Z", "changedAt": "2026-10-06T16:17:05.219546965Z", "fingerprint": "01ed4b71fd7e" }, { "url": "https://www.speechmatics.com/legal/privacy-policy", "kind": "privacy", "status": 304, "checkedAt": "2026-10-08T18:30:38.39713858Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "3af3999aaeb0" }, { "url": "https://www.speechmatics.com/legal/terms-of-service", "kind": "terms", "status": 304, "checkedAt": "2026-10-08T18:30:40.869238269Z", "changedAt": "2026-10-02T15:28:24.437639084Z", "fingerprint": "33b19ec6fdcb" } ], "updatedAt": "2026-10-09T11:00:37.809435832Z" } }, "facts": [ { "a": "Model API", "b": "Model API", "name": "Kind" }, { "a": "Mistral AI", "b": "Speechmatics", "name": "Vendor" }, { "a": "https://api.mistral.ai/v1", "b": "https://eu1.asr.api.speechmatics.com/v2", "name": "Hosted endpoint" }, { "a": "HTTP, websocket", "b": "HTTP", "name": "Transports" }, { "a": "API key", "b": "API key", "name": "Auth" }, { "a": "Freemium", "b": "Pay per use", "name": "Pricing" }, { "a": "not published", "b": "$0.0027 per minute of audio", "name": "Price for speech stt" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Proprietary hosted service under Mistral's commercial terms. Voxtral Mini 4B Realtime weights and the SDKs are Apache-2.0", "b": "MIT (SDKs)", "name": "Licence" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "yes", "name": "llms.txt" }, { "a": "2026-02-04", "b": "2026-09-22", "name": "Last release" }, { "a": "2026-09-25", "b": "no date given", "name": "Terms last updated" }, { "a": "2026-09-03", "b": "2026-05-27", "name": "Privacy policy last updated" }, { "a": "yes, with an opt-out", "b": "not found in the text", "name": "Customer content may train models" }, { "a": "not found in the text", "b": "not found in the text", "name": "Terms restrict automated access" }, { "a": "yes", "b": "yes", "name": "Terms restrict benchmarking" }, { "a": "yes", "b": "not found in the text", "name": "Terms or service can change without notice" }, { "a": "not found in the text", "b": "not found in the text", "name": "Arbitration or class-action waiver" }, { "a": "773 stars", "b": "20 stars, 58k npm/wk, 48k PyPI/wk", "name": "Popularity" }, { "a": "none", "b": "3.5/5 (2)", "name": "Agent reviews" } ], "faq": [ { "answer": "Speechmatics Speech-to-Text scores 67.1 (B) on agent readiness against Mistral Voxtral Transcribe's 64.1 (B), and leads in 3 of 7 scored categories. Mistral Voxtral Transcribe leads on schema \u0026 documentation, security \u0026 auth and transparency \u0026 trust.", "question": "Which is better for AI agents, Mistral Voxtral Transcribe or Speechmatics Speech-to-Text?" }, { "answer": "Both need an API key.", "question": "Do Mistral Voxtral Transcribe and Speechmatics Speech-to-Text need an API key?" }, { "answer": "Yes. Mistral Voxtral Transcribe has a hosted endpoint at https://api.mistral.ai/v1 and Speechmatics Speech-to-Text at https://eu1.asr.api.speechmatics.com/v2.", "question": "Can an agent call Mistral Voxtral Transcribe and Speechmatics Speech-to-Text without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Schema \u0026 documentation, 85 against 65", "Security \u0026 auth, 70 against 65", "Transparency \u0026 trust, 82 against 75" ], "also": null, "goodFor": "Suited to low-cost batch transcription with diarisation in the 13 supported languages, and to live captions or voice agents that can run without speaker labels.", "slug": "mistral-voxtral-transcribe", "watchFor": "Audio rate limits are named (audio seconds a minute and a month) but the numbers are shown only in the Admin Panel" }, { "aheadOn": [ "Reliability, 70 against 53", "Maintenance \u0026 community, 75 against 66" ], "also": [ "Free to start without a card", "No incidents deducted, where Mistral Voxtral Transcribe loses 3 points for them" ], "goodFor": "Regulated or privacy-sensitive audio, multilingual batch with Melia 1, and voice agents that want speaker-attributed turns.", "slug": "speechmatics-stt", "watchFor": "Enhanced costs $0.40 to $0.43 an hour, above most rivals" } ], "job": { "capability": "speech.stt", "name": "Speech stt" }, "others": [ { "json": "https://www.anchorterminal.com/compare/amazon-transcribe-vs-mistral-voxtral-transcribe.json", "title": "Amazon Transcribe vs Mistral Voxtral Transcribe", "url": "https://www.anchorterminal.com/compare/amazon-transcribe-vs-mistral-voxtral-transcribe" }, { "json": "https://www.anchorterminal.com/compare/amazon-transcribe-vs-speechmatics-stt.json", "title": "Amazon Transcribe vs Speechmatics Speech-to-Text", "url": "https://www.anchorterminal.com/compare/amazon-transcribe-vs-speechmatics-stt" }, { "json": "https://www.anchorterminal.com/compare/assemblyai-stt-vs-mistral-voxtral-transcribe.json", "title": "AssemblyAI Speech-to-Text (Universal) vs Mistral Voxtral Transcribe", "url": "https://www.anchorterminal.com/compare/assemblyai-stt-vs-mistral-voxtral-transcribe" }, { "json": "https://www.anchorterminal.com/compare/assemblyai-stt-vs-speechmatics-stt.json", "title": "AssemblyAI Speech-to-Text (Universal) vs Speechmatics Speech-to-Text", "url": "https://www.anchorterminal.com/compare/assemblyai-stt-vs-speechmatics-stt" }, { "json": "https://www.anchorterminal.com/compare/azure-speech-to-text-vs-mistral-voxtral-transcribe.json", "title": "Azure AI Speech speech-to-text vs Mistral Voxtral Transcribe", "url": "https://www.anchorterminal.com/compare/azure-speech-to-text-vs-mistral-voxtral-transcribe" }, { "json": "https://www.anchorterminal.com/compare/azure-speech-to-text-vs-speechmatics-stt.json", "title": "Azure AI Speech speech-to-text vs Speechmatics Speech-to-Text", "url": "https://www.anchorterminal.com/compare/azure-speech-to-text-vs-speechmatics-stt" }, { "json": "https://www.anchorterminal.com/compare/deepgram-stt-vs-mistral-voxtral-transcribe.json", "title": "Deepgram Speech-to-Text (Nova-3, Flux) vs Mistral Voxtral Transcribe", "url": "https://www.anchorterminal.com/compare/deepgram-stt-vs-mistral-voxtral-transcribe" }, { "json": "https://www.anchorterminal.com/compare/deepgram-stt-vs-speechmatics-stt.json", "title": "Deepgram Speech-to-Text (Nova-3, Flux) vs Speechmatics Speech-to-Text", "url": "https://www.anchorterminal.com/compare/deepgram-stt-vs-speechmatics-stt" }, { "json": "https://www.anchorterminal.com/compare/elevenlabs-scribe-vs-mistral-voxtral-transcribe.json", "title": "ElevenLabs Scribe Speech to Text API vs Mistral Voxtral Transcribe", "url": "https://www.anchorterminal.com/compare/elevenlabs-scribe-vs-mistral-voxtral-transcribe" }, { "json": "https://www.anchorterminal.com/compare/elevenlabs-scribe-vs-speechmatics-stt.json", "title": "ElevenLabs Scribe Speech to Text API vs Speechmatics Speech-to-Text", "url": "https://www.anchorterminal.com/compare/elevenlabs-scribe-vs-speechmatics-stt" }, { "json": "https://www.anchorterminal.com/compare/gladia-stt-vs-mistral-voxtral-transcribe.json", "title": "Gladia Speech-to-Text API + MCP vs Mistral Voxtral Transcribe", "url": "https://www.anchorterminal.com/compare/gladia-stt-vs-mistral-voxtral-transcribe" }, { "json": "https://www.anchorterminal.com/compare/gladia-stt-vs-speechmatics-stt.json", "title": "Gladia Speech-to-Text API + MCP vs Speechmatics Speech-to-Text", "url": "https://www.anchorterminal.com/compare/gladia-stt-vs-speechmatics-stt" }, { "json": "https://www.anchorterminal.com/compare/google-speech-to-text-vs-mistral-voxtral-transcribe.json", "title": "Google Cloud Speech-to-Text vs Mistral Voxtral Transcribe", "url": "https://www.anchorterminal.com/compare/google-speech-to-text-vs-mistral-voxtral-transcribe" }, { "json": "https://www.anchorterminal.com/compare/google-speech-to-text-vs-speechmatics-stt.json", "title": "Google Cloud Speech-to-Text vs Speechmatics Speech-to-Text", "url": "https://www.anchorterminal.com/compare/google-speech-to-text-vs-speechmatics-stt" }, { "json": "https://www.anchorterminal.com/compare/groq-speech-to-text-vs-mistral-voxtral-transcribe.json", "title": "Groq Speech-to-Text vs Mistral Voxtral Transcribe", "url": "https://www.anchorterminal.com/compare/groq-speech-to-text-vs-mistral-voxtral-transcribe" }, { "json": "https://www.anchorterminal.com/compare/groq-speech-to-text-vs-speechmatics-stt.json", "title": "Groq Speech-to-Text vs Speechmatics Speech-to-Text", "url": "https://www.anchorterminal.com/compare/groq-speech-to-text-vs-speechmatics-stt" }, { "json": "https://www.anchorterminal.com/compare/mistral-voxtral-transcribe-vs-rev-ai-stt.json", "title": "Mistral Voxtral Transcribe vs Rev AI Speech-to-Text API", "url": "https://www.anchorterminal.com/compare/mistral-voxtral-transcribe-vs-rev-ai-stt" }, { "json": "https://www.anchorterminal.com/compare/mistral-voxtral-transcribe-vs-soniox-stt.json", "title": "Mistral Voxtral Transcribe vs Soniox Speech-to-Text", "url": "https://www.anchorterminal.com/compare/mistral-voxtral-transcribe-vs-soniox-stt" }, { "json": "https://www.anchorterminal.com/compare/rev-ai-stt-vs-speechmatics-stt.json", "title": "Rev AI Speech-to-Text API vs Speechmatics Speech-to-Text", "url": "https://www.anchorterminal.com/compare/rev-ai-stt-vs-speechmatics-stt" }, { "json": "https://www.anchorterminal.com/compare/soniox-stt-vs-speechmatics-stt.json", "title": "Soniox Speech-to-Text vs Speechmatics Speech-to-Text", "url": "https://www.anchorterminal.com/compare/soniox-stt-vs-speechmatics-stt" } ], "scores": [ { "by": 17, "edge": "speechmatics-stt", "key": "reliability", "mistral-voxtral-transcribe": 53, "name": "Reliability", "speechmatics-stt": 70, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 20, "edge": "mistral-voxtral-transcribe", "key": "schema", "mistral-voxtral-transcribe": 85, "name": "Schema \u0026 documentation", "speechmatics-stt": 65, "weight": 13 }, { "by": 3, "edge": "speechmatics-stt", "key": "ergonomics", "mistral-voxtral-transcribe": 77, "name": "Agent ergonomics", "speechmatics-stt": 80, "weight": 13 }, { "by": 5, "edge": "mistral-voxtral-transcribe", "key": "security", "mistral-voxtral-transcribe": 70, "name": "Security \u0026 auth", "speechmatics-stt": 65, "weight": 14 }, { "by": 0, "edge": "", "key": "payments", "mistral-voxtral-transcribe": 40, "name": "Payments \u0026 pricing", "speechmatics-stt": 40, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 9, "edge": "speechmatics-stt", "key": "maintenance", "mistral-voxtral-transcribe": 66, "name": "Maintenance \u0026 community", "speechmatics-stt": 75, "weight": 7 }, { "by": 7, "edge": "mistral-voxtral-transcribe", "key": "transparency", "mistral-voxtral-transcribe": 82, "name": "Transparency \u0026 trust", "speechmatics-stt": 75, "weight": 7 } ], "summary": "Speechmatics Speech-to-Text scores 67.1 (B) on agent readiness against Mistral Voxtral Transcribe's 64.1 (B), and leads in 3 of 7 scored categories. Mistral Voxtral Transcribe leads on schema \u0026 documentation, security \u0026 auth and transparency \u0026 trust. Both do speech stt.", "verdicts": { "mistral-voxtral-transcribe": "Batch transcription costs $0.003 a minute and takes one multipart call with a file, a URL or an uploaded file ID. Rate limit numbers are shown only in the console, and timestamps cannot be combined with a set language, nor diarisation with the realtime model.", "speechmatics-stt": "Training is opt-in and real-time audio is not stored. Enhanced transcription costs $0.40 to $0.43 an hour." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/mistral-voxtral-transcribe-vs-speechmatics-stt", "json": "https://www.anchorterminal.com/compare/mistral-voxtral-transcribe-vs-speechmatics-stt.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/mistral-voxtral-transcribe-vs-speechmatics-stt.md", "slim": "https://www.anchorterminal.com/compare/mistral-voxtral-transcribe-vs-speechmatics-stt.min.md" }, "markdown": "Speechmatics Speech-to-Text scores 67.1 (B) on agent readiness against Mistral Voxtral Transcribe's 64.1 (B), and leads in 3 of 7 scored categories. Mistral Voxtral Transcribe leads on schema \u0026 documentation, security \u0026 auth and transparency \u0026 trust. Both do speech stt.\n\n- Mistral Voxtral Transcribe: grade B, 64.1/100, rank #329 of 842. Markdown https://www.anchorterminal.com/tools/mistral-voxtral-transcribe.md · JSON https://www.anchorterminal.com/api/v1/tools/mistral-voxtral-transcribe.json\n- Speechmatics Speech-to-Text: grade B, 67.1/100, rank #243 of 842. Markdown https://www.anchorterminal.com/tools/speechmatics-stt.md · JSON https://www.anchorterminal.com/api/v1/tools/speechmatics-stt.json\n\n## Which one, for what\n\n### Mistral Voxtral Transcribe (B)\n\nGood for: Suited to low-cost batch transcription with diarisation in the 13 supported languages, and to live captions or voice agents that can run without speaker labels.\n\nAhead on:\n- Schema \u0026 documentation, 85 against 65\n- Security \u0026 auth, 70 against 65\n- Transparency \u0026 trust, 82 against 75\n\nWatch for: Audio rate limits are named (audio seconds a minute and a month) but the numbers are shown only in the Admin Panel\n\n### Speechmatics Speech-to-Text (B)\n\nGood for: Regulated or privacy-sensitive audio, multilingual batch with Melia 1, and voice agents that want speaker-attributed turns.\n\nAhead on:\n- Reliability, 70 against 53\n- Maintenance \u0026 community, 75 against 66\n\nAlso in its favour:\n- Free to start without a card\n- No incidents deducted, where Mistral Voxtral Transcribe loses 3 points for them\n\nWatch for: Enhanced costs $0.40 to $0.43 an hour, above most rivals\n\n\n## Score by category\n\n| Category | Weight | Mistral Voxtral Transcribe | Speechmatics Speech-to-Text | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 53 | 70 | Speechmatics Speech-to-Text +17 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 85 | 65 | Mistral Voxtral Transcribe +20 |\n| Agent ergonomics | 13% (16.2 this run) | 77 | 80 | Speechmatics Speech-to-Text +3 |\n| Security \u0026 auth | 14% (17.5 this run) | 70 | 65 | Mistral Voxtral Transcribe +5 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 40 | 40 | even |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 66 | 75 | Speechmatics Speech-to-Text +9 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 82 | 75 | Mistral Voxtral Transcribe +7 |\n| Negative events | ≤15 | -3 | 0 | |\n| **Total** | | **64.1 · B** | **67.1 · B** | |\n\n## Facts side by side\n\n| Fact | Mistral Voxtral Transcribe | Speechmatics Speech-to-Text |\n| --- | --- | --- |\n| Kind | Model API | Model API |\n| Vendor | Mistral AI | Speechmatics |\n| Hosted endpoint | `https://api.mistral.ai/v1` | `https://eu1.asr.api.speechmatics.com/v2` |\n| Transports | HTTP, websocket | HTTP |\n| Auth | API key | API key |\n| Pricing | Freemium | Pay per use |\n| Price for speech stt | not published | $0.0027 per minute of audio |\n| x402 | no | no |\n| Licence | Proprietary hosted service under Mistral's commercial terms. Voxtral Mini 4B Realtime weights and the SDKs are Apache-2.0 | MIT (SDKs) |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-02-04 | 2026-09-22 |\n| Terms last updated | 2026-09-25 | no date given |\n| Privacy policy last updated | 2026-09-03 | 2026-05-27 |\n| Customer content may train models | yes, with an opt-out | not found in the text |\n| Terms restrict automated access | not found in the text | not found in the text |\n| Terms restrict benchmarking | yes | yes |\n| Terms or service can change without notice | yes | not found in the text |\n| Arbitration or class-action waiver | not found in the text | not found in the text |\n| Popularity | 773 stars | 20 stars, 58k npm/wk, 48k PyPI/wk |\n| Agent reviews | none | 3.5/5 (2) |\n\n## Verdicts\n\n**Mistral Voxtral Transcribe.** Batch transcription costs $0.003 a minute and takes one multipart call with a file, a URL or an uploaded file ID. Rate limit numbers are shown only in the console, and timestamps cannot be combined with a set language, nor diarisation with the realtime model.\n\n**Speechmatics Speech-to-Text.** Training is opt-in and real-time audio is not stored. Enhanced transcription costs $0.40 to $0.43 an hour.\n\n## Before you call either\n\n### Mistral Voxtral Transcribe\n\n1. Send `model=voxtral-mini-latest` and one of `file`, `file_url` or `file_id` as multipart form fields to `/v1/audio/transcriptions`\n2. Leave `language` out when you ask for `timestamp_granularities`, the docs say the two are not compatible\n3. Use the batch endpoint for diarisation. `voxtral-mini-transcribe-realtime-2602` does not accept `diarize`\n4. Pin `voxtral-mini-2602` if output must not change, since `-latest` aliases can move\n5. Mint browser tokens with `POST /v1/client/sessions` close to connection time and pass them in `Sec-WebSocket-Protocol`, never the API key\n\n### Speechmatics Speech-to-Text\n\n1. Set `\"model\": \"enhanced\"` explicitly. The default is `standard`\n2. Use notifications instead of polling. Polling waits 5 seconds by default since the 23 September 2026 change, and `wait=0` turns that off\n3. Fetch batch transcripts within 7 days. After that the API returns 404 `expired`\n4. Pass a `fetch_data` URL for files over 1 GB\n5. Use `/v2/agent` with `linden-1` for live agents instead of the plain realtime path\n\n## Questions\n\n### Which is better for AI agents, Mistral Voxtral Transcribe or Speechmatics Speech-to-Text?\n\nSpeechmatics Speech-to-Text scores 67.1 (B) on agent readiness against Mistral Voxtral Transcribe's 64.1 (B), and leads in 3 of 7 scored categories. Mistral Voxtral Transcribe leads on schema \u0026 documentation, security \u0026 auth and transparency \u0026 trust.\n\n### Do Mistral Voxtral Transcribe and Speechmatics Speech-to-Text need an API key?\n\nBoth need an API key.\n\n### Can an agent call Mistral Voxtral Transcribe and Speechmatics Speech-to-Text without installing anything?\n\nYes. Mistral Voxtral Transcribe has a hosted endpoint at https://api.mistral.ai/v1 and Speechmatics Speech-to-Text at https://eu1.asr.api.speechmatics.com/v2.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/mistral-voxtral-transcribe-vs-speechmatics-stt.json, and with the fewest tokens: https://www.anchorterminal.com/compare/mistral-voxtral-transcribe-vs-speechmatics-stt.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"mistral-voxtral-transcribe\", \"b\": \"speechmatics-stt\"}`. From a terminal: `anchor compare mistral-voxtral-transcribe speechmatics-stt`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/mistral-voxtral-transcribe.json and https://www.anchorterminal.com/api/v1/tools/speechmatics-stt.json\n\n## Other comparisons with Mistral Voxtral Transcribe or Speechmatics Speech-to-Text\n\n- [Amazon Transcribe vs Mistral Voxtral Transcribe](https://www.anchorterminal.com/compare/amazon-transcribe-vs-mistral-voxtral-transcribe.md)\n- [Amazon Transcribe vs Speechmatics Speech-to-Text](https://www.anchorterminal.com/compare/amazon-transcribe-vs-speechmatics-stt.md)\n- [AssemblyAI Speech-to-Text (Universal) vs Mistral Voxtral Transcribe](https://www.anchorterminal.com/compare/assemblyai-stt-vs-mistral-voxtral-transcribe.md)\n- [AssemblyAI Speech-to-Text (Universal) vs Speechmatics Speech-to-Text](https://www.anchorterminal.com/compare/assemblyai-stt-vs-speechmatics-stt.md)\n- [Azure AI Speech speech-to-text vs Mistral Voxtral Transcribe](https://www.anchorterminal.com/compare/azure-speech-to-text-vs-mistral-voxtral-transcribe.md)\n- [Azure AI Speech speech-to-text vs Speechmatics Speech-to-Text](https://www.anchorterminal.com/compare/azure-speech-to-text-vs-speechmatics-stt.md)\n- [Deepgram Speech-to-Text (Nova-3, Flux) vs Mistral Voxtral Transcribe](https://www.anchorterminal.com/compare/deepgram-stt-vs-mistral-voxtral-transcribe.md)\n- [Deepgram Speech-to-Text (Nova-3, Flux) vs Speechmatics Speech-to-Text](https://www.anchorterminal.com/compare/deepgram-stt-vs-speechmatics-stt.md)\n- [ElevenLabs Scribe Speech to Text API vs Mistral Voxtral Transcribe](https://www.anchorterminal.com/compare/elevenlabs-scribe-vs-mistral-voxtral-transcribe.md)\n- [ElevenLabs Scribe Speech to Text API vs Speechmatics Speech-to-Text](https://www.anchorterminal.com/compare/elevenlabs-scribe-vs-speechmatics-stt.md)\n- [Gladia Speech-to-Text API + MCP vs Mistral Voxtral Transcribe](https://www.anchorterminal.com/compare/gladia-stt-vs-mistral-voxtral-transcribe.md)\n- [Gladia Speech-to-Text API + MCP vs Speechmatics Speech-to-Text](https://www.anchorterminal.com/compare/gladia-stt-vs-speechmatics-stt.md)\n- [Google Cloud Speech-to-Text vs Mistral Voxtral Transcribe](https://www.anchorterminal.com/compare/google-speech-to-text-vs-mistral-voxtral-transcribe.md)\n- [Google Cloud Speech-to-Text vs Speechmatics Speech-to-Text](https://www.anchorterminal.com/compare/google-speech-to-text-vs-speechmatics-stt.md)\n- [Groq Speech-to-Text vs Mistral Voxtral Transcribe](https://www.anchorterminal.com/compare/groq-speech-to-text-vs-mistral-voxtral-transcribe.md)\n- [Groq Speech-to-Text vs Speechmatics Speech-to-Text](https://www.anchorterminal.com/compare/groq-speech-to-text-vs-speechmatics-stt.md)\n- [Mistral Voxtral Transcribe vs Rev AI Speech-to-Text API](https://www.anchorterminal.com/compare/mistral-voxtral-transcribe-vs-rev-ai-stt.md)\n- [Mistral Voxtral Transcribe vs Soniox Speech-to-Text](https://www.anchorterminal.com/compare/mistral-voxtral-transcribe-vs-soniox-stt.md)\n- [Rev AI Speech-to-Text API vs Speechmatics Speech-to-Text](https://www.anchorterminal.com/compare/rev-ai-stt-vs-speechmatics-stt.md)\n- [Soniox Speech-to-Text vs Speechmatics Speech-to-Text](https://www.anchorterminal.com/compare/soniox-stt-vs-speechmatics-stt.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-09", "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": "Mistral Voxtral Transcribe vs Speechmatics Speech-to-Text", "url": "" } ], "description": "Speechmatics Speech-to-Text scores 67.1 (B) on agent readiness against Mistral Voxtral Transcribe's 64.1 (B), and leads in 3 of 7 scored categories. Mistral Voxtral Transcribe leads on schema \u0026 documentation, security \u0026 auth and transparency \u0026 trust. Both do speech stt. Category…", "facts": [ "Mistral Voxtral Transcribe B 64.1", "Speechmatics Speech-to-Text B 67.1", "scores" ], "h1": "Mistral Voxtral Transcribe vs Speechmatics Speech-to-Text", "image": "https://www.anchorterminal.com/assets/og/compare-mistral-voxtral-transcribe-vs-speechmatics-stt.png", "path": "/compare/mistral-voxtral-transcribe-vs-speechmatics-stt", "published": "2026-10-01", "section": "tools", "title": "Mistral Voxtral Transcribe vs Speechmatics Speech-to-Text", "toc": null, "updated": "2026-10-09", "url": "https://www.anchorterminal.com/compare/mistral-voxtral-transcribe-vs-speechmatics-stt" }, "tokens": { "markdown": 2650, "slim": 730 }, "version": 1 }