Head-to-head comparison based on real production benchmarks with Gulf Arabic callers.
Fast Whisper inference on Groq hardware — poor Arabic quality with inconsistent latency.
Ultra-fast Arabic STT with poor transcription quality.
Described as 'horrible' transcription quality for Arabic in production testing.
Users had to repeat themselves frequently. Quality unacceptable for production use.
| Feature | Groq Whisper Large v3 Turbo | Speechmatics |
|---|---|---|
| Hardware-accelerated inference | ✓ | ✗ |
| Whisper model compatibility | ✓ | ✗ |
| Batch and real-time modes | ✓ | ✗ |
| Real-time streaming transcription | ✗ | ✓ |
| Configurable endpointing | ✗ | ✓ |
| Standard and enhanced operating points | ✗ | ✓ |
| Custom dictionary | ✗ | ✓ |
| Capability | Groq Whisper Large v3 Turbo | Speechmatics |
|---|---|---|
| Streaming support | ✗ | ✓ |
| LiveKit plugin | ✗ | ✗ |
| Self-hostable | ✗ | ✓ |
| API style | REST (OpenAI-compatible) | WebSocket streaming + REST |
| SDKs | Python, Node.js | Python, Node.js |
Groq's fast hardware can't compensate for Whisper's poor Arabic handling. Quality is unacceptable and latency is too inconsistent for voice agents.
Amazingly fast but Arabic quality is too poor for production. The speed advantage is meaningless when users have to repeat themselves.
Groq Whisper Large v3 Turbo is faster with an average end-of-utterance delay of 284ms–3388ms, which is 176ms faster than Speechmatics.
Groq Whisper Large v3 Turbo has a quality rating of 1/5 (Poor). Described as 'horrible' transcription quality for Arabic in production testing.
Both providers are viable options. Groq Whisper Large v3 Turbo: Groq's fast hardware can't compensate for Whisper's poor Arabic handling. Quality is unacceptable and latency is too inconsistent for voice agents. Speechmatics: Amazingly fast but Arabic quality is too poor for production. The speed advantage is meaningless when users have to repeat themselves.
Groq Whisper Large v3 Turbo starts at $0 per minute (Rate-limited free tier). Speechmatics starts at $0.0042 per minute (Real-time streaming).