Build the Future of Conversation Intelligence — Faster

AssemblyAI makes it simple to build Conversation Intelligence products quickly. Our API delivers higher accuracy, reliable speaker diarization, and flexible pricing—so your team can focus on shipping features instead of fixing transcripts.

Everything You Need to Build a Best-in-Class Product

Deliver powerful conversation intelligence solutions with industry-leading accuracy and reliability. AssemblyAI offers advanced speech models that help companies ship faster, scale reliably, and build truly differentiated products.

  • Accurate transcripts you can trust
  • Best-in-class speaker diarization
  • Flexible, cost-effective pricing
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More Accurate Transcripts  — Fewer Customer Complaints

AssemblyAI outperforms other providers in noisy, multi-speaker environments like phone calls and meetings. Independent benchmarks show up to 30% reduction in hallucination rates compared to Whisper Speech-to-Text on real-world audio.
The industry’s highest Word Accuracy Rate
OpenAI
Whisper Large-v3
Microsoft
Azure Batch v3.1
Google
Latest-long
AssemblyAI
Universal-2
91.7%
91.2%
90.8%
93.3%

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