Overview
AI transcription and audio intelligence API
Best for: Speech-to-text; speaker diarization; content moderation; summarization (LeMUR); sentiment analysis
At a glance
Pricing
Pay-per-hour ($0.37-0.65/hr)
- Difficulty
- Beginner-friendly
- Time to productivity
- 1 hour
- Privacy
- High
- Learning curve
- Moderate
Ideal for
Developers building transcriptionpodcast platformsmedia companiescall analytics
Key capabilities
Works with
- Audio (speech)
Outputs
- JSON transcripts
- SRT
- VTT
- paragraphs
- highlights
Mobile access
How to use AssemblyAI on phones and tablets.
- Mobile web: Works in a mobile browser (responsive or dedicated mobile site).
Free Tier
Free: limited hours; basic transcription and AI features
Limits: Free: limited transcription hours; pay-per-audio-hour; volume discounts available
When to upgrade: Hour limits; LeMUR (LLM for audio); advanced AI features; enterprise SLA; custom vocabulary
Technical Details
Type: api
Offline: No
API: Yes
Languages: Multilingual (many languages supported)
Integrations: Python/JS/Go/Ruby SDKs, Zapier, REST API, webhooks