Speech-to-text
Build Voice AI with one API
Speech-to-text, speaker diarization, PII redaction, topic
detection, and LLM integration—all in one platform. Build
intelligent voice products in minutes without juggling five
vendors.
Transcription + Understanding + Intelligence in One Platform
Build, deploy, and scale Voice AI solutions with one powerful API
Multilingual speech-to-text for async/batch and streaming apps.
Replace multiple APIs with a single Voice AI stack.
Pay-as-you-go pricing with zero commitments and enterprise reliability.
High accuracy and low latency transcription with contextual prompting.
Handle medical, legal, and technical terms easily with specialized vocab.
Seamlessly integrate with LLM's for speech-to-intelligence pipelines.
Test Faster. Scale Easier. Ship with Confidence.
AssemblyAI’s developer-first API lets you start testing in under a minute. Transcribe, identify speakers, redact sensitive info, and integrate with LLMs. All in one stack.
The most loved AI apps are built on AssemblyAI
Industry-leading speech-to-text accuracy, coverage across 99+ languages. 5,000+ industry-leading companies build with our Voice AI models. Ready to join the best of the best?
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, taking 20 minutes, taking 15 minutes– it's huge, right?
The 30-40% reduction in speech-to-text errors has significantly improved our production efficiency and client satisfaction. We've achieved industry-leading word error rates for non-English audio, which is critical for serving our enterprise clients.
The cost saving is literally the difference between being profitable or not for us, but beyond the economics, AssemblyAI gave us something invaluable: peace of mind. We can focus on building our product instead of worrying about infrastructure limits.
On 10 out of 10 onboarding calls, our customers are at some point telling us 'wow that insight was crisp'—and that's because of the accuracy we're getting from AssemblyAI.
Get Started in Minutes
Build the Best Voice AI apps with AssemblyAI
