# Granite Switch 4.1 model sizes and sources

> Granite Switch 4.1 is IBM's model family for chat, decisions and speech-to-text. Its 8B and 30B models share a Decision adapter interface.

Updated 2026-11-04 (Australia/Adelaide)

By IBM · Released: 2026-10-15 · OPEN

IBM's switchable models do chat, decisions and speech-to-text from one endpoint. 4.1 adds a general-purpose Decision adapter that speaks the /v1/systemone interface.

## Facts

- Sizes: 8B and 30B
- Licence: Apache-2.0

## Claims and sources



## Links

- [Source: Announcement](<https://huggingface.co/blog/ibm-granite/granite-switch-4-1>)

## Related projects

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