AssemblyAI

AssemblyAI Speech-to-Text

AI-powered speech recognition API.

High accuracy STTReal-time streamingSpeaker diarizationPunctuation and formattingSummarization

Where it ranks today

Best for / Not great for

Best for
  • Transcribing large volumes of audio/video
  • Real-time call analysis
  • Content moderation
  • Automated meeting notes
  • Building voice interfaces
Not great for
  • Text-to-speech generation
  • Music transcription
  • On-device processing (primarily cloud-based API)

Why it ranks here

AssemblyAI provides a robust and well-featured API for speech-to-text, including advanced capabilities like speaker diarization and summarization, making it a strong choice for developers needing more than basic transcription. Its continuous feature additions keep it competitive.

30-day trend

Score breakdown

Search trends88
Benchmarks86
Developer buzz87
News mentions86

Pricing

API: $0.00 in · $0.00 out per 1M tokens · Consumer: $0.00/mo

Pricing plans

Free Tier
Try for free, limited usage.
Free
  • 3 hours of audio per month
  • Access to core transcription features
  • Community support
  • Limited API calls
Start Free
Popular
Developer
For growing applications.
$0 /usage
  • Per-second pricing
  • Full API access
  • Increased usage limits
  • Priority support
View Pricing
Team
For production workloads.
$0 /usage
  • Volume discounts
  • Dedicated support
  • Team collaboration features
  • Higher concurrency
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Compare with another modelHow is this score calculated? →Snapshot 2026-07-15