Only pay for what you use.

Our pricing is simple. You pay a small fraction of a cent for every second of speech you send to the API, and that's it.

For more information about pricing, contact us.


Built by developers, for developers.

API you can customize with unlimited words and phrases

With AssemblyAI, you can customize the API so it recognizes custom words like Chewbacca, Demacia and Jedi.

Learn More about Corpora

Premium email and community support

Our devoted support team is with you whenever you run into problems. You can also join our active community to discuss with other developers.

An API that auto-learns

The API will get better and better by learning from the data you transcribe. The more you use it, the more accurate it gets.

Handy API management tools

Visualizing your data? Managing billing? Viewing your API logs? You name it. Our dashboard makes your life easier by supporting it all.

Working on an open source project?

We love open source projects, so we are happy to give you free API access for yours.
Please log the information of your open source project here.