# deepseek-ai/deepseek-r1

Calls to the model deepseek-ai/deepseek-r1 on Together AI stopped working on May 14, 2026.

Together AI retired model deepseek-ai/deepseek-r1 on May 14, 2026. Calls specifying this model fail since that date. Dedicated on-demand endpoints do not support it.

## What to use instead

The previously suggested deepseek-ai/deepseek-v3.1 also stopped working on May 14, 2026. No working replacement is named yet.

- API: Together AI (api.together.xyz)
- Model: deepseek-ai/deepseek-r1
- Released: January 1, 2025 (models.dev)
- Kind: Model retirement
- Takes effect: May 14, 2026
- Calls after that day: fail
- Calls it hits: `model deepseek-ai/deepseek-r1`
- Source: [Deprecations page](https://docs.together.ai/docs/deprecations)
- Verified: November 6, 2026, against Together AI's own pages
- Page: https://www.okapi.bot/models/together-ai/deepseek-ai/deepseek-r1/

## Together AI's words

> Removal date: 2026-05-14; Model: deepseek-ai/DeepSeek-R1; Supported by on-demand dedicated endpoints: No

Okapi finds the calls this change hits in your repo and opens the pull request with the fix: https://github.com/apps/okapi-agent