# deepseek-ai/deepseek-v4-flash

Calls to the model deepseek-ai/deepseek-v4-flash on Nebius stopped working on August 31, 2026.

On August 31, 2026, Nebius retired model deepseek-ai/deepseek-v4-flash. Requests specifying this model fail since that date. The deprecation notice designated the model as discontinued.

## What to use instead

Move to deepseek-ai/deepseek-v4.1-flash-1017. The earlier recommended replacement deepseek-ai/deepseek-v4-flash-0731 will stop working on November 9, 2026.

- API: Nebius (api.studio.nebius.ai)
- Model: deepseek-ai/deepseek-v4-flash
- Released: April 24, 2026 (models.dev)
- Kind: Model retirement
- Takes effect: August 31, 2026
- Calls after that day: fail
- Calls it hits: `model deepseek-ai/deepseek-v4-flash`
- Source: [Model notices](https://docs.tokenfactory.nebius.com/llms.txt#deprecation)
- Verified: November 6, 2026, against Nebius's own pages
- Page: https://www.okapi.bot/models/nebius/deepseek-ai/deepseek-v4-flash/

## Nebius's words

> Deprecating Model: deepseek-ai/DeepSeek-V4-Flash; Recommended Replacement: deepseek-ai/DeepSeek-V4-Flash-0731

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