IBM describes the patch as compatible with 4.1. Speech recognition gains punctuation and capitalization across ten languages; an adapter SDK remains in development.
IBM’s October 29 announcement for Granite Switch 4.1.1 describes a patch to its modular model system. According to IBM, it is backward compatible with 4.1 and requires no migration. The base model is unchanged; the update introduces a new speech-recognition model and an updated Decision adapter.
What changes
IBM says the speech model supports ten languages with native punctuation and capitalization. It also reports improved overall performance for the Decision adapter on the Jev Decision Index test set, without publishing a numerical result in this post.
What a builder should do next
Our interpretation: updating individual components could make a targeted upgrade easier to evaluate. Test the relevant adapter on your own audio or decision workflow before adopting it. The post does not list the ten languages, so it does not establish Vietnamese or Thai support.
Tutorials and an Adapter SDK are still being developed. This is reporting on IBM’s announcement, not an independent benchmark or compatibility test.
Sources & verification
1. Hugging Face Blog — Granite Switch 4.1.1 — Update models like you update software ↗Based on an official announcement; not an independent benchmark.Content updated: 31 Oct 2026.
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