Head to head
AssemblyAI vs Speechmatics
As a speech-to-text API, AssemblyAI rates higher on the APIbenchmarks Index, 86.9 to 76.6, a 10.3-point gap. Here is how they compare on each criterion.
Criterion by criterion
| Criterion | AssemblyAI | Speechmatics |
|---|---|---|
| Documentation & DX | ||
| Reliability | ||
| Ecosystem & SDKs | ||
| Accessibility | ||
| APIbenchmarks Index | 86.9 | 76.6 |
Specifications
| AssemblyAI | Speechmatics | |
|---|---|---|
| Best for | Accurate STT plus audio intelligence | Multilingual accuracy, on-prem capable |
| Free tier | $50 one-time credit | 8 hrs/mo (480 min) |
| Pricing | Per minute (usage-based) | Per minute (usage-based) |
| Official SDKs | 7 languages | 5 languages |
Is AssemblyAI better than Speechmatics?
On the APIbenchmarks Index, AssemblyAI rates higher (86.9 vs 76.6). It leads on the four weighted criteria, but price is reported separately, so the best choice still depends on your budget.