Speech-to-text to powerful outcomes
Top startups and enterprises rely on AssemblyAI’s breakthrough speech-to-text and speech understanding models for reliable source-truth data that powers world-class products.
Industry-leading models on a developer-first API
Your AI product strategy depends on the foundation that powers it. Make sure you build on the best.
Accuracy that makes an impact
Our speech-to-text models lead the industry in accuracy and deliver the most reliable audio outputs for standout user experiences.
Industry-leading accuracy on alphanumerics, proper nouns, text formatting, and speech diarization- Up to 30% less hallucinations than other providers
- Preferred by 73% of end users in unbiased evaluations
Built beyond transcription
Powerful capabilities and groundbreaking audio intelligence let you identify key speakers, customize outputs, and transform words into meaningful ideas, insights, and opportunities.
- Correctly identify speakers with advanced diarization capabilities
- Automatically format text and alphanumerics for clearer outputs
- Accurately capture multilingual speech with automatic language detection
Developer preferred and ready to scale
Developers choose AssemblyAI because we build with them in mind. Enterprises choose us because we keep security and scale at the forefront.
- SDKs that perform, improve, and scale—reliably
- Clear and comprehensive developer documentation
- Serving 600M+ inference calls per monthand > 3.5M audio files daily
We’re not playing around—but you can
Put our AI models to the test in our no-code playground.
A foundation you can build on
Future-proof your products with superior standards that scale with you.
Research first
Our Speech AI experts are solving top industry challenges and pioneering new possibilities for world-class voice data products.
Always advancing
We keep you on the cutting edge with weekly features and updates that ship out ready for production without requiring more work from your team.
Priced to scale
Cost won’t prevent you from building winning products. We keep pricing scalable with payment options and custom volume discounts.
Customers grow revenue and get to market faster with AssemblyAI
Learn why today’s most innovative companies choose us.
in closed enterprise deals after launching Conversation Intelligence with AssemblyAI
customer win rates after implementing AssesmblyAI
free-to-paid conversion rate after implementing AssemblyAI
in call transcription accuracy and 2X increase in customer conversion rate
in customer complaints and support tickets
We’re shaping the tides of Speech AI
Deep dive into insights, industry breakthroughs, and trending innovations.
Voice Agents
Power human-like voice agents with the fastest, most accurate streaming STT. Deliver smoother conversations, better task completion, and real-time responsiveness.
Conversational Intelligence
Power best-in-class conversation intelligence with leading Speech AI. Deliver unmatched insights, streamlined workflows, and faster time to market.
Assembly Required
A new series featuring candid conversations between AI founders to share insights and learnings about the highs and lows of building a company.
Turn voice data into unparalleled product experiences
Partner with the leader in Speech AI to build powerful products with breakthrough industry impact.
