# openai/gpt-oss-20b-maas

Vertex AI deprecated the model openai/gpt-oss-20b-maas without giving a shutdown date yet.

- API: Vertex AI (aiplatform.googleapis.com)
- Model: openai/gpt-oss-20b-maas
- Kind: Model retirement
- Takes effect: no date given yet
- Calls after that day: fail
- Calls it hits: `model openai/gpt-oss-20b-maas`
- Source: [models.dev](https://models.dev/api.json#google-vertex)
- Page: https://www.okapi.bot/models/vertex-ai/openai/gpt-oss-20b-maas/