AssemblyAI Alternatives
Speech-to-text APIs with audio intelligence, speaker diarization, and real-time streaming
AssemblyAI provides speech-to-text APIs and audio intelligence models. Core features include async transcription in 99+ languages, real-time streaming with ~300ms latency, and speaker diarization.
Explore 8 alternatives to AssemblyAI across 1 category. Updated September 2026.
Top AssemblyAI alternatives at a glance
- Speechmatics. Enterprise speech-to-text API supporting 55+ languages with high accuracy
- Gladia. Fast speech-to-text API with real-time transcription and speaker diarization
- Deepgram. Build Voice AI into your apps.
- OpenAI. API access to GPT, o-series reasoning, DALL-E, and Whisper models
- Samtal. Swedish-hosted voice AI API with TTS, ASR, voice cloning, and conversational agents. ElevenLabs-compatible
Compare AssemblyAI with its alternatives
| Product | Pricing Model | Free Tier | Open Source | Hosting | HQ |
|---|---|---|---|---|---|
| AssemblyAI | Pay-per-use | ✓ | — | Cloud | ๐บ๐ธ United States |
| Speechmatics | Freemium | ✓ | — | Cloud + Self-hosted | ๐ฌ๐ง United Kingdom |
| Gladia | Pay-per-use | ✓ | — | Cloud | ๐ซ๐ท France |
| Deepgram | Pay-per-use | ✓ | — | Cloud + Self-hosted | ๐บ๐ธ United States |
| OpenAI | Pay-per-use | ✓ | — | Cloud | ๐บ๐ธ United States |
| Samtal | — | — | — | Cloud | ๐ธ๐ช Sweden |
| MusicGPT | Freemium | ✓ | — | — | — |
| Cartesia | Freemium | ✓ | — | Cloud + Self-hosted | ๐บ๐ธ United States |
| LemonFox | Subscription | ✓ | — | Cloud | ๐ฉ๐ช Germany |
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