# stepfun-ai/step-3.5-flash

Calls to the model stepfun-ai/step-3.5-flash on DeepInfra stopped working on October 1, 2026.

DeepInfra retired the model stepfun-ai/step-3.5-flash on October 1, 2026. Calls targeting this model fail since that date. Any application still sending requests to stepfun-ai/step-3.5-flash must be updated to avoid errors.

## What to use instead

Move to XiaomiMiMo/MiMo-V2.6-Flash, which is recommended by DeepInfra.

- API: DeepInfra (api.deepinfra.com)
- Model: stepfun-ai/step-3.5-flash
- Released: January 29, 2026 (models.dev)
- Kind: Model retirement
- Takes effect: October 1, 2026
- Calls after that day: fail
- Calls it hits: `model stepfun-ai/step-3.5-flash`
- Source: [Model list](https://api.deepinfra.com/models/list)
- Verified: November 6, 2026, against DeepInfra's own pages
- Page: https://www.okapi.bot/models/deepinfra/stepfun-ai/step-3.5-flash/

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