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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 October 2026.

Top AssemblyAI alternatives at a glance

  1. Speechmatics. Enterprise speech-to-text API supporting 55+ languages with high accuracy
  2. Gladia. Fast speech-to-text API with real-time transcription and speaker diarization
  3. Deepgram. Build Voice AI into your apps.
  4. OpenAI. API access to GPT, o-series reasoning, DALL-E, and Whisper models
  5. 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 πŸ‡ΊπŸ‡Έ United States
Speechmatics Freemium ✓ — Cloud + Self-hosted πŸ‡¬πŸ‡§ United Kingdom
Gladia Pay-per-use ✓ — Cloud πŸ‡«πŸ‡· France
Deepgram Pay-per-use ✓ — Cloud + Self-hosted πŸ‡ΊπŸ‡Έ United States
OpenAI Pay-per-use ✓ — Cloud πŸ‡ΊπŸ‡Έ United States
Samtal — — — Cloud πŸ‡ΈπŸ‡ͺ Sweden
MusicGPT Freemium ✓ — — —
Cartesia Freemium ✓ — Cloud + Self-hosted πŸ‡ΊπŸ‡Έ United States
LemonFox Subscription ✓ — Cloud πŸ‡©πŸ‡ͺ Germany

πŸ”Š Audio

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