← Speech-to-text
Compare 4 speech-to-text APIs
| Universal-3.5 Pro AssemblyAI | Soniox (async) Soniox | Whisper large-v3 (Groq) Groq | Soniox stt-rt-v5 Soniox | |
|---|---|---|---|---|
| $ / audio hour | $0.21 Verified Oct 27, 2026 | $0.10 Verified Oct 6, 2026 · aging | $0.11 Unverified sample | $0.12 Verified Oct 27, 2026 |
| Quality | – | – | 82 | – |
| Speed | – | – | 98 | – |
| Real-time streaming | — | Yes | No | — |
| Speaker labels | — | Yes | No | — |
| Languages | — | 60 | 99 | — |
| Word timestamps | — | Yes | Yes | — |
| Open weights | — | No | Yes | — |