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.

Best in class

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’s lowest Word Error Rate (WER)
  • Up to 30% less hallucinations than other providers
  • Preferred by 73% of end users in unbiased evaluations
Explore our latest model
CAPABILITIES

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
Check out our products
Build-ready

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
Go to developer docs

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.

Security focused

We keep your data private, safe, and secure with our security-first practices and comprehensive enterprise-grade protections.

Customers grow revenue and get to market faster with AssemblyAI

Learn why today’s most innovative companies choose us.

3x increase

in closed enterprise deals after launching Conversation Intelligence with AssemblyAI

15% higher

customer win rates after implementing AssesmblyAI

2X

free-to-paid conversion rate after implementing AssemblyAI

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23% improvement

in call transcription accuracy and 2X increase in customer conversion rate

90% reduction

in customer complaints and support tickets

Turn voice data into unparalleled product experiences

Partner with the leader in Speech AI to build powerful products with breakthrough industry impact.