> This page is for version v2 API (default).
> For other versions, use one of these documentation indexes:
> - v2 API (default): https://docs.cohere.com/v2/llms.txt
> - v1 API: https://docs.cohere.com/v1/llms.txt

> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.cohere.com/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.cohere.com/_mcp/server.

# Command Model Nightly Available!

> Get improved performance with our new nightly versions of Command models, now available in medium and x-large sizes.

Nightly versions of our Common models are now available. This means that every week, you can expect the performance of command-nightly to improve as we continually retrain them.

Command-nightly will be available in two sizes - `medium` and `xlarge`. The `xlarge` model demonstrates better performance, and medium is a great option for developers who require fast response, like those building chatbots. You can find more information [here](/docs/command-beta).

If you were previously using the `command-xlarge-20221108` model, you will now be redirected to the `command-xlarge-nightly` model. Please note that access to the `command-xlarge-20221108` model will be discontinued after January 30, 2023. The `command-xlarge-nightly` model has shown enhancements in all generative tasks, and we anticipate you will notice an improvement.