AssemblyAI
by AssemblyAI · www.assemblyai.com ↗
Speech-to-text API providing transcription and audio intelligence models for developers.
speech-to-text api audio-intelligence
- Category
- Audio, Voice & Music
- Business model
- Paid
- Availability
- Global
- Launched
- 2017
- Record updated
- 2026-07-29
- Documentation
- www.assemblyai.com ↗
- Founded
- 2017
- Headquarters
- US
Overview
AssemblyAI is a speech-to-text API company providing transcription and audio-intelligence models for developers. Its models handle high-accuracy transcription plus features like speaker diarization, summarization, and topic detection. Pricing is usage-based per hour of audio, with free credits to start.
Key features
- High-accuracy speech-to-text API
- Speaker diarization and sentiment analysis
- Summarization and topic detection models
- Streaming and asynchronous transcription
Use cases
- Adding transcription to apps and platforms
- Analyzing call-center and meeting audio
- Building voice features on top of speech models
Pricing
Pricing is usage-based per hour of audio; new developers receive free starter credits.
Frequently asked questions
What does AssemblyAI provide?
AssemblyAI provides speech-to-text and audio-intelligence APIs for transcription, diarization, and summarization.
Who is AssemblyAI for?
AssemblyAI is aimed at developers building transcription and audio-analysis features into applications.
How is AssemblyAI priced?
AssemblyAI is priced by hour of audio processed, with free credits for new accounts.
Similar products
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- Cartesia — Real-time voice generation platform built on state-space models for low-latency speech synthesis.
- Deepgram — Speech recognition and voice AI API for real-time transcription and audio understanding.
- Descript — AI-powered audio and video editor that lets you edit recordings by editing their transcript.
- ElevenLabs — AI voice platform offering text-to-speech, voice cloning, and dubbing.
- Murf AI — AI text-to-speech platform offering studio-quality synthetic voices for voiceovers and narration.
All AssemblyAI alternatives → · All Audio, Voice & Music products →
Sources
This record was last reviewed on 2026-07-29.
Machine-readable record: /api/products/assemblyai.json · Spot an error? Suggest a correction