# Objective

DeepSeek has released the GA version of its V4 Pro model, and added a
new low reasoning effort level for both V4 Flash and V4 Pro. We need to
update Zed's DeepSeek provider to sync with this update.

Reference: https://api-docs.deepseek.com/updates/

## Solution

Added a new Low reasoning effort level for DeepSeek models.

## Testing

Built and ran locally. Screenshots with this change are attached in the
Showcase section.

## Self-Review Checklist:

- [x] I've reviewed my own diff for quality, security, and reliability
- [x] Unsafe blocks (if any) have justifying comments
- [x] The content adheres to Zed's UI standards
([UX/UI](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
and
[icon](https://github.com/zed-industries/zed/blob/main/crates/icons/README.md)
guidelines)
- [ ] Tests cover the new/changed behavior
- [x] Performance impact has been considered and is acceptable

## Showcase
After this change:

<img width="639" height="169" alt="flash"
src="https://github.com/user-attachments/assets/5521f6fe-ced9-4842-8783-24c532bf66f6"
/>

<img width="640" height="181" alt="pro"
src="https://github.com/user-attachments/assets/0293d4a2-03f8-41e1-8a3e-31efce9dea17"
/>

---

Release Notes:

- Added support for low reasoning effort for DeepSeek V4 Flash and V4
Pro