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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 17 alternatives to AssemblyAI across 1 category. Each tool listed below shares at least one category with AssemblyAI.

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

🔊 Audio

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OpenAI icon
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Resemble AI icon
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Frequently asked questions

What are the best alternatives to AssemblyAI?

Based on category overlap and popularity, the top alternatives to AssemblyAI include: 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 ...). See all 17 alternatives compared on this page.

Is there a free alternative to AssemblyAI?

Yes. 14 alternatives to AssemblyAI offer a free tier or free trial: Speechmatics, Gladia, Deepgram, OpenAI, Cartesia, LemonFox, and more. Use the comparison above to find the best fit for your use case.

Are there open-source alternatives to AssemblyAI?

Yes. 2 open-source alternatives to AssemblyAI are listed here: Fish Audio, LiveKit Agents. Open-source tools can be self-hosted for full control over data and infrastructure.

What is AssemblyAI?

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. Audio Intelligence add-ons cover sentiment analysis, topic detection, entity recognition, content mo... See 17 alternatives to AssemblyAI across 1 category.

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