Speechmatics: 480 free minutes/month of transcription
Source: https://www.speechmatics.com/pricing
Description
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+ 1 Speechmatics is a UK-built enterprise-grade speech-to-text platform known for its accuracy on accents, multiple speakers, and noisy audio. The free plan gives every account 480 transcription minutes (8 hours) per month, refreshed monthly, across all 55+ supported languages with speaker diarization, real-time and batch transcription. No credit card required to sign up.
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+ 7 1. Go to portal.speechmatics.com and click "Sign up"
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+ 8 2. Sign up with email + password (Google / Microsoft SSO via WorkOS AuthKit also offered)
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+ 9 3. Verify your email — confirmation link arrives in seconds
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+ 10 4. Complete a short profile (name, company, intended use)
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+ 11 5. Land in the portal — your free 480 min/month is active immediately, no credit card asked
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+ 12 6. Open Settings → API Keys, name a key, click Generate, copy and store it (shown once)
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+ 13 7. Hit the API:
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• REST batch: POST https://asr.api.speechmatics.com/v2/jobs with Authorization: Bearer <KEY>
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• WebSocket real-time: wss://eu2.rt.speechmatics.com/v2
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+ 16 8. Optional: add a credit card later in Settings → Billing if you want to overflow past 480 min — usage above the free tier is billed at Pro rates ($0.24/hour).
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+ 18 Important:
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+ 19 • The free 480 minutes are split: typically 240 batch + 240 real-time per month — confirm split in your portal usage page
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+ 20 • 2 concurrent real-time sessions allowed on the free tier
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+ 21 • Hitting the cap stops jobs until next monthly reset (or until you add a card to upgrade)
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+ 22 • Free tier also includes ~1M characters/month of Text-to-Speech (~20 hrs of audio output)
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+ 28 ServiceFree LimitNotes
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+ 29 Batch Speech-to-Text~240 min/moPre-recorded audio, asynchronous jobs
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+ 30 Real-Time Speech-to-Text~240 min/mo, 2 concurrent sessionsWebSocket streaming
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+ 31 Speaker DiarizationIncludedSpeaker, channel, channel+speaker modes
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+ 32 TranslationIncludedReal-time and batch language translation
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+ 33 SummarizationIncludedAuto-generated summaries on batch jobs
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+ 34 Sentiment, topics, chaptersIncludedAudio intelligence add-ons on batch
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+ 35 Text-to-Speech~1,000,000 chars/mo (~20 hrs)Multi-voice
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+ 37 Source: Speechmatics Pricing and Speechmatics Features & Deployments.
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+ 43 The free tier covers all 55+ languages Speechmatics supports — same model and accuracy as paid plans. No language gating. Notable strengths:
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+ 45 • English — extremely strong on accents (UK regional, Indian, African, Caribbean, etc.)
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+ 46 • Multilingual mode — auto-detects code-switching within a single audio file (English/Spanish, English/Hindi, etc.)
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+ 47 • Major Western European, East Asian, Indic, Arabic, Slavic languages all supported
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+ 49 Full list: Speechmatics supported languages.
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+ 55 ModeUse Case
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+ 56 Speaker diarizationIdentify each speaker by voice in single-channel audio (meetings, podcasts)
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+ 57 Channel diarizationEach speaker is on their own audio channel (call-center recordings)
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+ 58 Channel + speakerBoth — multiple speakers per channel across multiple channels
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+ 59
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+ 60 Works on both batch and real-time APIs.
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+ 66 • vs AssemblyAI ($50 credits, ~238 hrs) — AssemblyAI's $50 is one-time; Speechmatics resets every month forever
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+ 67 • vs Gladia (10 hrs/mo) — Speechmatics gives less time but is generally rated more accurate on tough audio
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+ 68 • vs Deepgram — Deepgram has $200 one-time credit; Speechmatics' monthly recurring tier is better for ongoing low-volume use
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+ 69 • vs OpenAI Whisper API — pay-as-you-go only ($0.006/min); Speechmatics is the only major "free forever, no card" option
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+ 75 • EU data residency — Speechmatics is UK-headquartered with EU regions; useful for GDPR-sensitive workloads
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+ 76 • On-premises / Docker container deployment is also offered (paid tiers) — handy if you later need air-gapped STT
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+ 77 • Pipecat / LangChain integrations — official integrations exist for voice agent stacks
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+ 78 • The portal shows a live usage meter so you can track minutes consumed before the monthly reset
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+ 79 • Real-time sessions count time from connect to disconnect — close idle WebSocket connections promptly
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+ 83 Sources:
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+ 84 • Speechmatics Pricing
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+ 85 • Speechmatics Features and Deployments
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+ 86 • Speechmatics Real-Time Speech-to-Text
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+ 87 • Speechmatics Diarization Docs
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+ 88 • Speechmatics Realtime Diarization Docs
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+ 89 • Speechmatics Portal Signup
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+ 90 • Pipecat Speechmatics Integration
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