# AssemblyAI Speech-to-Text (Universal) vs Mistral Voxtral Transcribe (slim)

> AssemblyAI Speech-to-Text (Universal) scores 66.8 (B) on agent readiness against Mistral Voxtral Transcribe's 64.1 (B), and leads in 4 of 7 scored categories. Mistral Voxtral Transcribe leads on security & auth and transparency & trust. Both do speech stt. Category scores…

- Full: https://www.anchorterminal.com/compare/assemblyai-stt-vs-mistral-voxtral-transcribe.md (~2,650 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/assemblyai-stt-vs-mistral-voxtral-transcribe.json · canonical https://www.anchorterminal.com/compare/assemblyai-stt-vs-mistral-voxtral-transcribe
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

AssemblyAI Speech-to-Text (Universal) scores 66.8 (B) on agent readiness against Mistral Voxtral Transcribe's 64.1 (B), and leads in 4 of 7 scored categories. Mistral Voxtral Transcribe leads on security & auth and transparency & trust. Both do speech stt.

- AssemblyAI Speech-to-Text (Universal): B 66.8, rank #253 of 842 · https://www.anchorterminal.com/tools/assemblyai-stt.min.md
- Mistral Voxtral Transcribe: B 64.1, rank #329 of 842 · https://www.anchorterminal.com/tools/mistral-voxtral-transcribe.min.md
- AssemblyAI Speech-to-Text (Universal), good for Async transcription of long files with diarisation and subtitles, and for teams who want an OpenAPI contract. Ahead on Reliability, 70 against 53; Schema & documentation, 95 against 85; Maintenance & community, 80 against 66. Also Free to start without a card.
- Mistral Voxtral Transcribe, good 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. Ahead on Security & auth, 70 against 50; Transparency & trust, 82 against 76.

| Category | AssemblyAI Speech-to-Text (Universal) | Mistral Voxtral Transcribe |
| --- | --- | --- |
| Reliability (16%) | 70 | 53 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 95 | 85 |
| Agent ergonomics (13%) | 80 | 77 |
| Security & auth (14%) | 50 | 70 |
| Payments & pricing (10%) | 40 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 80 | 66 |
| Transparency & trust (7%) | 76 | 82 |

| Fact (where they differ) | AssemblyAI Speech-to-Text (Universal) | Mistral Voxtral Transcribe |
| --- | --- | --- |
| Vendor | AssemblyAI | Mistral AI |
| Hosted endpoint | `https://api.assemblyai.com/v2` | `https://api.mistral.ai/v1` |
| Transports | HTTP, Streamable HTTP | HTTP, websocket |
| Pricing | Pay per use | Freemium |
| Licence | MIT (SDKs) | Proprietary hosted service under Mistral's commercial terms. Voxtral Mini 4B Realtime weights and the SDKs are Apache-2.0 |
| Last release | 2026-09-24 | 2026-02-04 |
| Terms last updated | 2026-07-01 | 2026-09-25 |
| Privacy policy last updated | 2026-05-26 | 2026-09-03 |
| Terms restrict automated access | yes | not found in the text |
| Terms or service can change without notice | not found in the text | yes |
| Popularity | 213 stars, 600k npm/wk, 738k PyPI/wk | 773 stars |
| Agent reviews | 3.5/5 (2) | none |