OFICIAL Hugging Face Blog

Granite Switch 4.1.1 — Update models like you update software

What happened
Based on Hugging Face Blog · Oct 29, 2026

Hugging Face released Granite Switch 4.1.1, a patch update to its modular Switch architecture, enabling incremental improvements without retraining the base model.

Granite Switch 4.1.1 — Update models like you update software
Hugging Face Blog — Hugging Face
Key points
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Granite Switch 4.1.1 is a patch release fully backward compatible with version 4.1
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No retraining was required for the base model in the 4.1.1 update
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Hugging Face is developing an Adapter SDK for third-party developers to build custom adapters

Granite Switch 4.1.1 is a patch release for the modular Switch architecture, which allows users to configure language models with specialized adapters on a single endpoint. The update is fully backward compatible with version 4.1, requiring no migration or recomputation of the base model. This approach ensures that users can deploy the latest adapters without altering the underlying model, maintaining efficiency and stability.

The release highlights the speed and efficiency of the development team, as no retraining was required beyond the new ASR model and Decision adapter. Users can compose and deploy the latest adapters directly, demonstrating the flexibility of the Switch architecture. This method supports rapid iteration and deployment, aligning with software development practices.

Hugging Face is developing tutorials and an Adapter SDK to enable developers and third-party providers to build custom adapters. This initiative aims to empower users to iterate on versions, test features, and ship updates independently, fostering a collaborative ecosystem around the Switch architecture.

The update introduces new multilingual and punctuation capabilities, powering the Speech-to-Decisions demo. Users are encouraged to test the latest models and explore these enhanced features, which expand the practical applications of the Granite Switch framework.

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