# gen4_aleph

Calls to the model gen4_aleph on Runwayml stopped working on July 30, 2026.

On July 30, 2026, the model gen4_aleph stopped working and is no longer available on Runway Dev. Calls using the model gen4_aleph fail after this date. This change affects all requests relying on that model identifier.

## What to use instead

Upgrade from Gen-4 Aleph to Aleph 2.0 (aleph2), or switch from Gen-3 Alpha Turbo to Gen-4.5 for best quality or Gen-4 Turbo for fastest processing.

- API: Runwayml (api.dev.runwayml.com)
- Model: gen4_aleph
- Kind: Model retirement
- Announced: July 30, 2026
- Takes effect: July 30, 2026
- Calls after that day: fail
- Calls it hits: `model gen4_aleph`
- Source: [Changelog](https://docs.dev.runwayml.com/api-details/api_changelog/)
- Verified: November 6, 2026, against Runwayml's own pages
- Page: https://www.okapi.bot/models/runwayml/gen4_aleph/

## Runwayml's words

> Gen-3 Alpha Turbo ( gen3a_turbo ) and Gen-4 Aleph ( gen4_aleph ) are no longer available on Runway Dev. Requests that use these model identifiers will fail.

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