AssemblyAI
Speech to text with AI features.
What is AssemblyAI?
AssemblyAI is a speech AI API for developers that transcribes audio and adds features like speaker labels, summaries and content detection. It is widely used for meeting, call and media products.
Best for
- Adding transcription to an app
- Speaker diarization and audio insights
- Developers who want speech AI without running models
AssemblyAI pricing
AssemblyAI has a free tier. Price: From $0.15/hr.
Plans & prices
- $50 free credit
- Universal-2 $0.15/hr
- Universal-3.5 Pro $0.21/hr
- streaming from $0.15/hr
Prices as published by AssemblyAI. This page was last updated on November 5, 2026; prices and plans change often, so check the provider’s pricing page before you buy.
Check current AssemblyAI prices →At a glance
Key facts
- Speech to text with AI features
Features
Strengths
Limitations
Best alternatives to AssemblyAI
🔗 Comparisons & guides
❓ Frequently Asked Questions
What is AssemblyAI?
AssemblyAI is a speech AI API for developers that transcribes audio and adds features like speaker labels, summaries and content detection. It is widely used for meeting, call and media products.
What is AssemblyAI best for?
AssemblyAI is a strong pick for: Adding transcription to an app; Speaker diarization and audio insights; Developers who want speech AI without running models.
How much does AssemblyAI cost?
AssemblyAI starts at From $0.15/hr ($50 free credit · Universal-2 $0.15/hr · Universal-3.5 Pro $0.21/hr · streaming from $0.15/hr). A free tier is available.
Is AssemblyAI free?
Yes — AssemblyAI has a free tier. Pricing: From $0.15/hr (details: $50 free credit · Universal-2 $0.15/hr · Universal-3.5 Pro $0.21/hr · streaming from $0.15/hr).
What are the best alternatives to AssemblyAI?
The highest-rated AI audio & voice tools from other providers on AIVerso are ElevenLabs v4 (96/100), Whisper v3 (91/100), Fish Audio (88/100).
Does AssemblyAI have an API?
Yes, AssemblyAI can be used via an API.
How does AIVerso rate AssemblyAI?
AssemblyAI scores 83/100 on AIVerso and ranks #7 of 17 in Audio & Voice. Scores combine public benchmark results, features and pricing; commissions never influence them.
How we rate: Scores and capability ratings are based on public benchmarks, provider documentation, features and pricing — not on commission rates. Prices can change; check the provider's site before buying. Last updated: November 5, 2026.