{ "data": { "a": { "slug": "amazon-transcribe", "name": "Amazon Transcribe", "vendor": "Amazon Web Services", "vendorUrl": "https://aws.amazon.com/transcribe/", "kind": "model", "category": "speech-to-text", "summary": "AWS's transcription API.", "url": "https://www.anchorterminal.com/tools/amazon-transcribe", "markdownUrl": "https://www.anchorterminal.com/tools/amazon-transcribe.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/amazon-transcribe.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/amazon-transcribe.json", "repo": "https://github.com/awslabs/amazon-transcribe-streaming-sdk", "license": "Apache-2.0 (SDKs)", "transports": [ "http" ], "remoteUrl": "https://transcribe.us-east-1.amazonaws.com", "packages": [ { "registry": "pypi", "name": "amazon-transcribe" }, { "registry": "npm", "name": "@aws-sdk/client-transcribe" }, { "registry": "npm", "name": "@aws-sdk/client-transcribe-streaming" } ], "auth": "api-key", "authNotes": "AWS Signature Version 4 with IAM access keys or a role. Batch goes to `transcribe.\u003cregion\u003e.amazonaws.com`, streaming to `transcribestreaming.\u003cregion\u003e.amazonaws.com` (WebSocket needs a presigned URL).", "pricing": "usage", "pricingNotes": "US East is $0.006 a minute batch and $0.01 a minute streaming, billed per second with no minimum and up to two channels included. Diarisation, custom vocabularies and language ID are included. PII redaction adds $0.0024 a minute and custom language models $0.006. Accounts opened before 2025-07-15 get 60 free minutes a month for 12 months, newer accounts get Free Tier credits instead (https://aws.amazon.com/transcribe/pricing/).", "priceSummary": "Pay per use", "where": "hosted", "x402": { "level": "no", "evidence": "No machine payment. Billing runs through a cloud account with a card or invoice.", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 185, "npmWeekly": 505959, "pypiWeekly": 200552, "asOf": "2026-09-30" }, "docsUrl": "https://docs.aws.amazon.com/transcribe/latest/dg/what-is.html", "llmsTxt": "https://docs.aws.amazon.com/transcribe/latest/dg/llms.txt", "capabilities": [ "speech.stt", "speech.streaming", "speech.batch", "speech.diarisation", "speech.languages" ], "tags": [ "hosted", "closed-source", "python", "typescript", "enterprise", "streaming", "batch", "async-jobs", "llms-txt", "card-required" ], "lastRelease": "2026-09-29", "graded": true, "anchor": { "graded": true, "score": 73.6, "grade": "BB", "agentReady": true, "rank": 57, "ranked": true, "rankOf": 452, "categoryRank": 2, "methodology": "0.3", "run": "2026-10-01", "scores": { "ergonomics": 80, "maintenance": 35, "payments": 20, "reliability": 95, "schema": 90, "security": 80, "transparency": 85 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "$0.006 a minute batch and $0.01 streaming in US East, with diarisation, custom vocabulary and language ID included. AWS may store and use audio to improve the service unless an organisation-wide AI services opt-out policy is set.", "strengths": [ "$0.006 a minute batch and $0.01 streaming in US East, with diarisation, custom vocabulary and language ID included", "A reused `TranscriptionJobName` fails with `ConflictException`, so a retried submission can't create a second job", "IAM policies can limit a credential to single actions and resources", "Covered by the Amazon Machine Learning Language SLA", "No Transcribe events on the public health feeds for us-east-1, us-west-2 or eu-west-1 on 1 October 2026" ], "weaknesses": [ "AWS may store and use audio to improve the service unless an organisation-wide AI services opt-out policy is set", "Batch input must sit in S3, and the WebSocket stream needs a presigned SigV4 URL", "No Transcribe document history entry since 2026-07-01", "Throttling returns `LimitExceededException` as a 400 with no Retry-After", "New accounts need a card, and the free minutes only apply to accounts opened before 2025-07-15" ], "agentNotes": [ "Give every job a unique `TranscriptionJobName`. A retry with the same name fails with `ConflictException` rather than starting a second job", "Batch is a job. Poll `GetTranscriptionJob` or listen on EventBridge, then fetch the transcript URI", "Set `OutputBucketName`, because job records are deleted after 90 days", "Back off on `LimitExceededException`. It arrives as a 400, not a 429", "Set the organisation's AI services opt-out policy before sending customer audio" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 4, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "BB", "methodology": "0.3", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 73.6 } ], "editorialScores": { "ergonomics": 80, "maintenance": 35, "payments": 20, "reliability": 95, "schema": 90, "security": 80, "transparency": 75 }, "provenanceScore": 95 }, "connect": { "install": "pip install boto3 amazon-transcribe # or: npm i @aws-sdk/client-transcribe", "http": "curl -X POST \"https://transcribe.us-east-1.amazonaws.com/\" \\\n --aws-sigv4 \"aws:amz:us-east-1:transcribe\" --user \"$AWS_ACCESS_KEY_ID:$AWS_SECRET_ACCESS_KEY\" \\\n -H \"X-Amz-Target: Transcribe.StartTranscriptionJob\" -H \"content-type: application/x-amz-json-1.1\" \\\n -d '{\"TranscriptionJobName\":\"call-001\",\"LanguageCode\":\"en-US\",\"Media\":{\"MediaFileUri\":\"s3://my-bucket/call.wav\"}}'" }, "letme": { "capability": "https://letme.dev/speech.stt", "tool": "https://letme.dev/amazon-transcribe" }, "sameCompany": [ "amazon-bedrock-guardrails", "amazon-polly", "aws-secrets-manager", "aws-mcp-servers", "amazon-ses", "amazon-translate" ], "area": "voice", "unitPrices": [ { "item": "Batch", "unit": "audio-minute", "usd": 0.006, "note": "US East, per second" }, { "item": "Streaming", "unit": "audio-minute", "usd": 0.01, "note": "US East, per second" }, { "item": "PII redaction add-on", "unit": "audio-minute", "usd": 0.0024, "note": "first 250,000 minutes" }, { "item": "Custom language model add-on", "unit": "audio-minute", "usd": 0.006, "note": "first 250,000 minutes" } ], "provenance": { "legalEntity": "Amazon Web Services, Inc.", "domain": "amazon.com", "domainRegistered": "1994-11-01", "domainNote": "The endpoints are on amazonaws.com (registered 2005-08-18) and api.aws, both AWS domains. The security.txt on aws.amazon.com passed its Expires date on 2026-09-24.", "endpointOnVendorDomain": true, "terms": "https://aws.amazon.com/service-terms/", "privacy": "https://aws.amazon.com/privacy/", "statusPage": "https://health.aws.amazon.com/health/status", "changelog": "https://docs.aws.amazon.com/transcribe/latest/dg/doc-history.html", "securityTxt": "expired", "checked": "2026-09-30", "score": 95 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/amazon-transcribe.json", "live": { "slug": "amazon-transcribe", "probe": { "target": "https://transcribe.us-east-1.amazonaws.com", "method": "get", "lastAt": "2026-10-04T23:48:04.017101503Z", "lastOk": true, "lastStatus": 404, "lastMs": 252, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 255, "p95ms24h": 314, "samples24h": 272, "samples30d": 1100, "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": 270, "ok": 270 } ] }, "versions": [ { "registry": "npm", "name": "@aws-sdk/client-transcribe", "version": "3.1146.0", "seenAt": "2026-10-04T16:20:14.407745351Z" }, { "registry": "npm", "name": "@aws-sdk/client-transcribe-streaming", "version": "3.1146.0", "seenAt": "2026-10-04T16:20:15.237150076Z" }, { "registry": "pypi", "name": "amazon-transcribe", "version": "0.6.4", "released": "2025-05-05", "seenAt": "2026-10-04T16:20:14.218395026Z" } ], "githubStars": 185, "npmWeekly": 609911, "pypiWeekly": 233186, "securityTxt": { "url": "https://amazon.com/.well-known/security.txt", "state": "valid", "checkedAt": "2026-10-04T15:15:49.458098289Z" }, "llmsTxt": { "url": "https://docs.aws.amazon.com/transcribe/latest/dg/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-04T15:17:18.885309232Z" }, "domain": { "domain": "amazon.com", "registered": "1994-11-01", "source": "https://rdap.verisign.com/com/v1/domain/amazon.com", "checkedAt": "2026-10-04T13:06:18.739682554Z" }, "pages": [ { "url": "https://docs.aws.amazon.com/transcribe/latest/dg/doc-history.html", "kind": "changelog", "status": 304, "checkedAt": "2026-10-04T15:43:22.418825271Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "2b53ad2d121d" }, { "url": "https://aws.amazon.com/transcribe/pricing/", "kind": "pricing", "status": 304, "checkedAt": "2026-10-04T15:41:40.655188059Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "9d86c82cdd96" } ], "updatedAt": "2026-10-04T23:48:04.017101503Z" } }, "b": { "slug": "azure-speech-to-text", "name": "Azure AI Speech speech-to-text", "vendor": "Microsoft Azure", "vendorUrl": "https://azure.microsoft.com/en-us/products/ai-services/speech-to-text", "kind": "model", "category": "speech-to-text", "summary": "Azure's speech-to-text service for transcribing audio.", "url": "https://www.anchorterminal.com/tools/azure-speech-to-text", "markdownUrl": "https://www.anchorterminal.com/tools/azure-speech-to-text.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/azure-speech-to-text.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/azure-speech-to-text.json", "repo": "https://github.com/Azure-Samples/cognitive-services-speech-sdk", "license": "MIT (samples), SDK under Microsoft's own licence", "transports": [ "http" ], "remoteUrl": "https://eastus.api.cognitive.microsoft.com/speechtotext", "packages": [ { "registry": "pypi", "name": "azure-cognitiveservices-speech" }, { "registry": "npm", "name": "microsoft-cognitiveservices-speech-sdk" } ], "auth": "mixed", "authNotes": "`Ocp-Apim-Subscription-Key` header with a Speech resource key, or a Microsoft Entra ID bearer token (Microsoft's recommended keyless option). Endpoints are per region or per resource.", "pricing": "freemium", "pricingNotes": "Free F0 tier with 5 audio hours a month of real-time. Pay as you go in East US is $1 an hour real-time, $0.36 fast transcription, $0.18 batch, $1.20 custom real-time. Diarisation and continuous language ID in real time add $0.30 an hour each. MAI-Transcribe-2 is $0.10 an hour until 2026-12-31. Commitment tiers from $1,600 a month for 2,000 hours (https://azure.microsoft.com/en-us/pricing/details/speech/).", "priceSummary": "Freemium", "where": "hosted", "x402": { "level": "no", "evidence": "No machine payment. Billing runs through a cloud account with a card or invoice.", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 3450, "npmWeekly": 475621, "pypiWeekly": 1032532, "asOf": "2026-09-30" }, "docsUrl": "https://learn.microsoft.com/en-us/azure/ai-services/speech-service/speech-to-text", "capabilities": [ "speech.stt", "speech.streaming", "speech.batch", "speech.diarisation", "speech.languages", "speech.translation" ], "tags": [ "hosted", "freemium", "free-tier", "closed-source", "python", "typescript", "enterprise", "streaming", "batch", "async-jobs", "webhooks" ], "lastRelease": "2026-09-28", "graded": true, "anchor": { "graded": true, "score": 77, "grade": "BB", "agentReady": true, "rank": 23, "ranked": true, "rankOf": 452, "categoryRank": 1, "methodology": "0.3", "run": "2026-10-01", "scores": { "ergonomics": 75, "maintenance": 80, "payments": 20, "reliability": 90, "schema": 80, "security": 95, "transparency": 88 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "Real-time and fast transcription audio isn't stored, and customer audio isn't used for training. MAI-Transcribe-2 is preview with no SLA, and its $0.10 promotional price ends on 2026-12-31.", "strengths": [ "Real-time and fast transcription audio isn't stored, and customer audio isn't used for training", "Fast transcription returns files up to 5 hours and 500 MB in one synchronous call", "Batch at $0.18 an hour, and a free F0 tier with 5 real-time hours a month", "429 guidance with a concrete backoff pattern of 1, 2, 4 and 4 minutes", "Keys or Entra ID tokens with role-based access" ], "weaknesses": [ "MAI-Transcribe-2 is preview with no SLA, and its $0.10 promotional price ends on 2026-12-31", "Real-time diarisation and language ID add $0.30 an hour each", "REST API v3.0 and the v3.2 previews were retired on 2026-03-31, and older samples still target them", "No llms.txt, and the pricing page needs JavaScript", "An Azure subscription needs a card, even for the F0 tier" ], "agentNotes": [ "Use fast transcription (`transcriptions:transcribe`) for files under 5 hours and 500 MB, and batch for bulk jobs", "Pin `api-version=2025-10-15`. v3.0 and the v3.2 previews are retired", "On a 429, back off 1, 2, 4 then 4 minutes. It usually means autoscaling, not a quota", "Set `timeToLive` on batch jobs or delete results, otherwise transcripts stay in Microsoft storage", "Don't budget on MAI-Transcribe-2 at $0.10 an hour after 2026-12-31" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 8, "avgRating": 3.3, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "BB", "methodology": "0.3", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 77 } ], "editorialScores": { "ergonomics": 75, "maintenance": 80, "payments": 20, "reliability": 90, "schema": 80, "security": 95, "transparency": 80 }, "provenanceScore": 95 }, "connect": { "install": "pip install azure-cognitiveservices-speech # or: npm i microsoft-cognitiveservices-speech-sdk", "http": "curl -X POST \"https://$AZURE_SPEECH_RESOURCE.cognitiveservices.azure.com/speechtotext/transcriptions:transcribe?api-version=2025-10-15\" \\\n -H \"Ocp-Apim-Subscription-Key: $AZURE_SPEECH_KEY\" \\\n -F \"audio=@call.wav\" -F 'definition={\"locales\":[\"en-US\"]}'" }, "letme": { "capability": "https://letme.dev/speech.stt", "tool": "https://letme.dev/azure-speech-to-text" }, "sameCompany": [ "azure-foundry-fine-tuning", "azure-ai-content-safety", "azure-text-to-speech", "microsoft-learn-mcp", "playwright-mcp", "azure-mcp", "azure-translator", "microsoft-graph-calendar" ], "area": "voice", "unitPrices": [ { "item": "Real-time standard", "unit": "audio-minute", "usd": 0.0167, "note": "$1 an hour, East US" }, { "item": "Fast transcription", "unit": "audio-minute", "usd": 0.006, "note": "$0.36 an hour" }, { "item": "Batch standard", "unit": "audio-minute", "usd": 0.003, "note": "$0.18 an hour" }, { "item": "MAI-Transcribe-2 (preview)", "unit": "audio-minute", "usd": 0.00167, "note": "$0.10 an hour, promotional until 2026-12-31" }, { "item": "Custom real-time", "unit": "audio-minute", "usd": 0.02, "note": "$1.20 an hour, plus endpoint hosting" }, { "item": "Real-time add-on (diarisation or language ID)", "unit": "audio-minute", "usd": 0.005, "note": "$0.30 an hour per feature" } ], "provenance": { "legalEntity": "Microsoft Corporation", "domain": "microsoft.com", "domainRegistered": "1991-05-02", "domainNote": "Endpoints are on speech.microsoft.com, api.cognitive.microsoft.com and cognitiveservices.azure.com. microsoft.com publishes a security.txt, but it passed its Expires date on 2026-09-23.", "endpointOnVendorDomain": true, "terms": "https://www.microsoft.com/licensing/terms/", "privacy": "https://privacy.microsoft.com/en-us/privacystatement", "statusPage": "https://azure.status.microsoft/en-us/status", "changelog": "https://learn.microsoft.com/en-us/azure/ai-services/speech-service/releasenotes", "securityTxt": "expired", "checked": "2026-09-30", "score": 95 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/azure-speech-to-text.json", "live": { "slug": "azure-speech-to-text", "probe": { "target": "https://eastus.api.cognitive.microsoft.com/speechtotext", "method": "get", "lastAt": "2026-10-04T23:48:04.612036064Z", "lastOk": true, "lastStatus": 404, "lastMs": 329, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 332, "p95ms24h": 391, "samples24h": 272, "samples30d": 1100, "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": 270, "ok": 270 } ] }, "vendorStatus": { "page": "https://azure.status.microsoft/en-us/status", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-04T21:39:49.706276597Z" }, "versions": [ { "registry": "github", "name": "Azure-Samples/cognitive-services-speech-sdk", "version": "ingestion-v2.1.13", "released": "2026-07-10", "seenAt": "2026-10-04T16:21:35.861804644Z" }, { "registry": "npm", "name": "microsoft-cognitiveservices-speech-sdk", "version": "1.52.0", "seenAt": "2026-10-04T16:21:35.450134716Z" }, { "registry": "pypi", "name": "azure-cognitiveservices-speech", "version": "1.52.0", "released": "2026-09-28", "seenAt": "2026-10-04T16:21:35.259257344Z" } ], "githubStars": 3450, "npmWeekly": 508156, "pypiWeekly": 762825, "securityTxt": { "url": "https://microsoft.com/.well-known/security.txt", "state": "expired", "expires": "2026-09-23T16:00:00.000Z", "checkedAt": "2026-10-04T15:16:01.36832038Z" }, "domain": { "domain": "microsoft.com", "registered": "1991-05-02", "source": "https://rdap.verisign.com/com/v1/domain/microsoft.com", "checkedAt": "2026-10-04T13:04:13.488857536Z" }, "pages": [ { "url": "https://learn.microsoft.com/en-us/azure/ai-services/speech-service/releasenotes", "kind": "changelog", "status": 304, "checkedAt": "2026-10-04T15:45:30.876444067Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "2950544cc00c" }, { "url": "https://learn.microsoft.com/en-us/azure/ai-services/speech-service/mai-transcribe", "kind": "deprecations", "status": 304, "checkedAt": "2026-10-04T15:45:28.887604282Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "ebf9086dffd9" }, { "url": "https://learn.microsoft.com/en-us/azure/ai-services/speech-service/rest-speech-to-text", "kind": "deprecations", "status": 304, "checkedAt": "2026-10-04T15:45:32.859554147Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "fd2ed8814ecb" }, { "url": "https://azure.microsoft.com/en-us/pricing/details/speech/", "kind": "pricing", "status": 200, "checkedAt": "2026-10-04T15:41:26.501161098Z", "changedAt": "2026-10-02T15:17:47.510097164Z", "fingerprint": "61d50da4e330" }, { "url": "https://privacy.microsoft.com/en-us/privacystatement", "kind": "privacy", "status": 200, "checkedAt": "2026-10-01T13:14:57.860748137Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "07484a06f35c" }, { "url": "https://www.microsoft.com/licensing/terms/", "kind": "terms", "status": 502, "checkedAt": "2026-10-01T13:17:52.720054167Z", "changedAt": "0001-01-01T00:00:00Z" } ], "updatedAt": "2026-10-04T23:48:04.612036064Z" } }, "summary": "Azure AI Speech speech-to-text has a score of 77 (BB) against Amazon Transcribe's 73.6 (BB). Both do speech stt. The largest gap is maintenance \u0026 community, 45 points." }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/amazon-transcribe-vs-azure-speech-to-text", "json": "https://www.anchorterminal.com/compare/amazon-transcribe-vs-azure-speech-to-text.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/amazon-transcribe-vs-azure-speech-to-text.md", "slim": "https://www.anchorterminal.com/compare/amazon-transcribe-vs-azure-speech-to-text.min.md" }, "markdown": "Azure AI Speech speech-to-text has a score of 77 (BB) against Amazon Transcribe's 73.6 (BB). Both do speech stt. The largest gap is maintenance \u0026 community, 45 points.\n\n- Amazon Transcribe: grade BB, 73.6/100, rank #57 of 452. Markdown https://www.anchorterminal.com/tools/amazon-transcribe.md · JSON https://www.anchorterminal.com/api/v1/tools/amazon-transcribe.json\n- Azure AI Speech speech-to-text: grade BB, 77/100, rank #23 of 452. Markdown https://www.anchorterminal.com/tools/azure-speech-to-text.md · JSON https://www.anchorterminal.com/api/v1/tools/azure-speech-to-text.json\n\n## Which one, for what\n\nPick Amazon Transcribe for reliability (+5), schema \u0026 documentation (+10), agent ergonomics (+5).\n\nPick Azure AI Speech speech-to-text for security \u0026 auth (+15), maintenance \u0026 community (+45).\n\n## Score by category\n\n| Category | Weight | Amazon Transcribe | Azure AI Speech speech-to-text | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 95 | 90 | Amazon Transcribe +5 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 90 | 80 | Amazon Transcribe +10 |\n| Agent ergonomics | 13% (16.2 this run) | 80 | 75 | Amazon Transcribe +5 |\n| Security \u0026 auth | 14% (17.5 this run) | 80 | 95 | Azure AI Speech speech-to-text +15 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 20 | 20 | even |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 35 | 80 | Azure AI Speech speech-to-text +45 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 85 | 88 | Azure AI Speech speech-to-text +3 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **73.6 · BB** | **77 · BB** | |\n\n## Facts side by side\n\n| Fact | Amazon Transcribe | Azure AI Speech speech-to-text |\n| --- | --- | --- |\n| Kind | Model API | Model API |\n| Vendor | Amazon Web Services | Microsoft Azure |\n| Hosted endpoint | `https://transcribe.us-east-1.amazonaws.com` | `https://eastus.api.cognitive.microsoft.com/speechtotext` |\n| Transports | HTTP | HTTP |\n| Auth | API key | OAuth or key |\n| Pricing | Pay per use | Freemium |\n| x402 | no | no |\n| Licence | Apache-2.0 (SDKs) | MIT (samples), SDK under Microsoft's own licence |\n| Tools exposed | none | none |\n| Context cost (tools/list) | n/a | n/a |\n| p95 latency | not measured yet | not measured yet |\n| Availability (30d) | not measured yet | not measured yet |\n| Read-only variant documented | no | no |\n| llms.txt | yes | no |\n| MCP registry | not listed | not listed |\n| Last release | 2026-09-29 | 2026-09-28 |\n| Popularity | 185 stars, 506k npm/wk, 201k PyPI/wk | 3.5k stars, 476k npm/wk, 1M PyPI/wk |\n| Agent reviews | 4/5 (2) | 3.3/5 (8) |\n\n## Verdicts\n\n**Amazon Transcribe.** $0.006 a minute batch and $0.01 streaming in US East, with diarisation, custom vocabulary and language ID included. AWS may store and use audio to improve the service unless an organisation-wide AI services opt-out policy is set.\n\n**Azure AI Speech speech-to-text.** Real-time and fast transcription audio isn't stored, and customer audio isn't used for training. MAI-Transcribe-2 is preview with no SLA, and its $0.10 promotional price ends on 2026-12-31.\n\n## Before you call either\n\n### Amazon Transcribe\n\n1. Give every job a unique `TranscriptionJobName`. A retry with the same name fails with `ConflictException` rather than starting a second job\n2. Batch is a job. Poll `GetTranscriptionJob` or listen on EventBridge, then fetch the transcript URI\n3. Set `OutputBucketName`, because job records are deleted after 90 days\n4. Back off on `LimitExceededException`. It arrives as a 400, not a 429\n5. Set the organisation's AI services opt-out policy before sending customer audio\n\n### Azure AI Speech speech-to-text\n\n1. Use fast transcription (`transcriptions:transcribe`) for files under 5 hours and 500 MB, and batch for bulk jobs\n2. Pin `api-version=2025-10-15`. v3.0 and the v3.2 previews are retired\n3. On a 429, back off 1, 2, 4 then 4 minutes. It usually means autoscaling, not a quota\n4. Set `timeToLive` on batch jobs or delete results, otherwise transcripts stay in Microsoft storage\n5. Don't budget on MAI-Transcribe-2 at $0.10 an hour after 2026-12-31\n\n## Other comparisons with Amazon Transcribe or Azure AI Speech speech-to-text\n\n- [Amazon Transcribe vs AssemblyAI Speech-to-Text (Universal)](https://www.anchorterminal.com/compare/amazon-transcribe-vs-assemblyai-stt.md)\n- [Amazon Transcribe vs Deepgram Speech-to-Text (Nova-3, Flux)](https://www.anchorterminal.com/compare/amazon-transcribe-vs-deepgram-stt.md)\n- [Amazon Transcribe vs ElevenLabs Scribe Speech to Text API](https://www.anchorterminal.com/compare/amazon-transcribe-vs-elevenlabs-scribe.md)\n- [Amazon Transcribe vs Gladia Speech-to-Text API + MCP](https://www.anchorterminal.com/compare/amazon-transcribe-vs-gladia-stt.md)\n- [Amazon Transcribe vs Google Cloud Speech-to-Text](https://www.anchorterminal.com/compare/amazon-transcribe-vs-google-speech-to-text.md)\n- [Amazon Transcribe vs Rev AI Speech-to-Text API](https://www.anchorterminal.com/compare/amazon-transcribe-vs-rev-ai-stt.md)\n- [Amazon Transcribe vs Soniox Speech-to-Text](https://www.anchorterminal.com/compare/amazon-transcribe-vs-soniox-stt.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 Azure AI Speech speech-to-text](https://www.anchorterminal.com/compare/assemblyai-stt-vs-azure-speech-to-text.md)\n- [Azure AI Speech speech-to-text vs Deepgram Speech-to-Text (Nova-3, Flux)](https://www.anchorterminal.com/compare/azure-speech-to-text-vs-deepgram-stt.md)\n- [Azure AI Speech speech-to-text vs ElevenLabs Scribe Speech to Text API](https://www.anchorterminal.com/compare/azure-speech-to-text-vs-elevenlabs-scribe.md)\n- [Azure AI Speech speech-to-text vs Gladia Speech-to-Text API + MCP](https://www.anchorterminal.com/compare/azure-speech-to-text-vs-gladia-stt.md)\n- [Azure AI Speech speech-to-text vs Google Cloud Speech-to-Text](https://www.anchorterminal.com/compare/azure-speech-to-text-vs-google-speech-to-text.md)\n- [Azure AI Speech speech-to-text vs Rev AI Speech-to-Text API](https://www.anchorterminal.com/compare/azure-speech-to-text-vs-rev-ai-stt.md)\n- [Azure AI Speech speech-to-text vs Soniox Speech-to-Text](https://www.anchorterminal.com/compare/azure-speech-to-text-vs-soniox-stt.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", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-04", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.3", "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": "Amazon Transcribe vs Azure AI Speech speech-to-text", "url": "" } ], "description": "Azure AI Speech speech-to-text has a score of 77 (BB) against Amazon Transcribe's 73.6 (BB). Both do speech stt. The largest gap is maintenance \u0026 community, 45 points. Category scores, facts, verdicts and agent notes side by side.", "facts": [ "Amazon Transcribe BB 73.6", "Azure AI Speech speech-to-text BB 77", "scores" ], "h1": "Amazon Transcribe vs Azure AI Speech speech-to-text", "image": "https://www.anchorterminal.com/assets/og/compare-amazon-transcribe-vs-azure-speech-to-text.png", "path": "/compare/amazon-transcribe-vs-azure-speech-to-text", "published": "2026-10-01", "section": "tools", "title": "Amazon Transcribe vs Azure AI Speech speech-to-text for AI agents", "toc": null, "updated": "2026-10-04", "url": "https://www.anchorterminal.com/compare/amazon-transcribe-vs-azure-speech-to-text" }, "tokens": { "markdown": 1850, "slim": 380 }, "version": 1 }