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Frequently Asked Questions

Find answers to common questions about AssemblyAI's services, features, and pricing.

For the complete documentation index, see llms.txt

Get quick answers to the most common questions about AssemblyAI's features, pricing, and services.

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How to Opt Out of Data Sharing for our Model Improvement Program

Privacy & Security

Are there any limits on file size or file duration for files submitted to the API?

Pre-recorded audio

What audio and video file types are supported by your API?

Pre-recorded audio

Will AssemblyAI sign a Business Associate Addendum (BAA)?

Privacy & Security

How does automatically scaling concurrency for Streaming STT work?

Streaming audio

Can I sign up for free?

Account, Billing & Payments