AssemblyAI has 6 plans: a free plan, paid plans from $0.15 and custom pricing for larger teams. We last read its pricing page on 4 October 2026. We have not recorded a price change.
AssemblyAI plans and prices
Free
$0
- usage based$0(Free (up to 185 hours pre-recorded / 333 hours streaming))
- monthly$0/mo($0/forever)
- Up to 185 hours pre-recorded transcription
- Up to 333 hours streaming transcription
- No credit card required
- 5 new streaming connections/minute
Universal-3.5 Pro
usage based$0.21
$0.21/hour
- Accuracy — most accurate async speech-to-text model
- Language support — works across 18 languages
- Native code switching
- Speaker diarization — most accurate
- Custom rate limits
- Enhanced concurrency
- Enterprise-grade flexibility
Universal-2
usage based$0.15
$0.15/hour
- Supports 99 languages
- Trained on over 12.5 million hours of audio data
- Exceptional accuracy
- Lower price point than Universal-3.5 Pro
Enterprise
Custom
- Custom enterprise pricing
- AWS Marketplace integration
- Monthly billing on actual usage
- No minimum commitments or upfront fees
Voice Agent API
usage based$4.50
Universal-3.6 Pro Realtime
usage based$4.50
Price history
Last 6 recorded changes
| Date | Plan | Change | Old | New | Δ% |
|---|---|---|---|---|---|
| Oct 3, 2026 | Universal-3.6 Pro Realtime | New plan | — | $4.50 | — |
| Oct 2, 2026 | Voice Agent API | New plan | — | $4.50 | — |
| Sep 9, 2026 | Universal-2 | Reclassified | $0.15 | $0.15 | — |
| Sep 9, 2026 | Universal-3.5 Pro | Reclassified | $0.21 | $0.21 | — |
| Aug 4, 2026 | Pay As You Go – Universal-2 | Reclassified | $0.15 | $0.15 | — |
| Aug 4, 2026 | Pay As You Go – Universal-3.5 Pro | Reclassified | $0.21 | $0.21 | — |
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