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All customer stories
Top Voice AI companies are building with Assembly.
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Latest Release
Universal 3.5 Pro
Our new flagship speech-to-text model handles real-world audio the way it actually happens. Available for real-time and pre-recorded audio.
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Turn every recording into something navigable. Get concise summaries and timestamped chapters — each with a headline and gist — from a single API call.
Enable Summarization and Auto Chapters in your transcription request and receive summaries and chapter breakdowns alongside the transcript — no extra plumbing.
Choose concise bullet points or fuller paragraphs, and dial up the effort for critical meetings, long recordings, or multilingual content.
Auto Chapters segments long recordings into timestamped sections, each with a headline, a one-line gist, and a summary paragraph.
Chapters and summaries are generated through our LLM Gateway, so you get higher-quality output and control over length and prompts.
Give people the gist in seconds and the timestamps to jump straight to what matters.
The accuracy was strong, but the great documentation and unique models like Auto Chapters and Sentiment Analysis is what really won us over.
Nathan Webb
Product Manager, Aloware
If you have an hour of content, the difference between 99% accuracy and 97% accuracy, it's a lot of time for that person to review. So you could cut down their workflow from taking half an hour, to 20 minutes, to 15 minutes — it's huge, right?
Joshua Grossberg
CTO, Kapwing
Investments in STT improvements always pay for themselves, since it is such a critical building block of the voice pipeline.
Lindsay Liu
Co-Founder & CEO, Super
AssemblyAI's managed API endpoint and diarization won me over — something Whisper couldn't provide.
Josh Mohrer
Founder, Wave.co
We needed a provider that could scale with us — offering unlimited concurrent streams, fair pricing, and responsive support.
Mark Barbir
CEO, Earmark
The transcription accuracy, reliability, and speed of AssemblyAI's API have greatly enhanced our operations.
Raj Shankar
SVP Product, Calabrio
Our free to paid conversion rate doubled after implementing AssemblyAI.
Colin Treseler
Founder & CEO, Supernormal
Calls are and will remain a pertinent part of the customer service journey. Customer service isn't moving entirely to chatbots or chat interactions.
Dr. Shane Lynn
CEO, EdgeTier
