Does Granite Switch 4.1.1 require migrating from 4.1?

No. IBM describes the patch as fully backwards compatible with 4.1, with no migration needed.

What is new in Granite Switch 4.1.1?

An updated Granite Speech ASR model for speech-to-text in 10 languages with native punctuation and capitalization, and an updated Decision adapter in granitelib-core.

Was the base model retrained for this release?

No. IBM says only the new ASR model and the Decision adapter were trained, and the base model is untouched.

Will third parties be able to build adapters?

IBM says it is working on tutorials and an Adapter SDK intended for developers and third-party providers, with more information to come.

IBM ships Granite Switch 4.1.1 patch with new speech and decision adapters

IBM's Granite Switch 4.1.1 is a backwards-compatible patch that updates a 10-language speech-to-text model and a Decision adapter without retraining the base model, according to a Hugging Face post.

ModelsPublished November 4, 2026 at 03:11 AM

Written with AI from the sources listed below. Reviewed by Konstantinos Perros. How we write

Key facts

Granite Switch 4.1.1 is a patch release that is fully backwards compatible with 4.1 and needs no migration.
The update includes a new Granite Speech ASR model covering speech-to-text in 10 languages, with native punctuation and capitalization.
The Decision adapter in granitelib-core was updated, and IBM says its overall performance on the Jev Decision Index test set improved.
Only the ASR model and the Decision adapter were trained for the release; the base model was left untouched.
IBM is preparing tutorials and an Adapter SDK so outside developers and providers can build their own adapters.

What Granite Switch 4.1.1 changes

A post published on Hugging Face on 29 October 2026 describes Granite Switch 4.1.1, a patch release that follows Granite Switch 4.1 by a little more than a week. The post says the version number carries its usual software meaning: the release is fully backwards compatible with 4.1, so users do not have to migrate, and the changes are incremental improvements under the hood.

Two components were updated. The first is the Granite Speech ASR model, which converts speech to text in 10 languages. The post says its output arrives with native punctuation and capitalization, so transcripts can be passed to downstream models without a separate formatting step.

The second is the Decision adapter in granitelib-core. IBM states that it performs better overall on the Jev Decision Index test set. These are the company's own claims, and the post is the only source for them.

Updating a model without recomputing it

The post argues that the notable part of this release is how quickly and cheaply the team produced it. Apart from training the new ASR model and the Decision adapter, nothing was recomputed, and the base model did not change. Users pick the latest adapters they want, compose them and deploy.

This builds on Granite Switch 4.1, which IBM says showed that its modular Switch architecture lets a language model be configured with specialized, cache-efficient adapters. Through them, new expertise can be added on a single endpoint.

Adapter SDK and what comes next

IBM says the same approach could support much more than patch releases of models it provides itself. The company is working on tutorials and an Adapter SDK that would let developers and third-party providers create adapters of their own, version them, test features and release updates in the manner of ordinary software. The post promises more detail soon.

In the meantime, IBM invites readers to try the latest models and its Speech-to-Decisions demo, which uses the new multilingual and punctuation capabilities.

Questions and answers

Does Granite Switch 4.1.1 require migrating from 4.1?: No. IBM describes the patch as fully backwards compatible with 4.1, with no migration needed.
What is new in Granite Switch 4.1.1?: An updated Granite Speech ASR model for speech-to-text in 10 languages with native punctuation and capitalization, and an updated Decision adapter in granitelib-core.
Was the base model retrained for this release?: No. IBM says only the new ASR model and the Decision adapter were trained, and the base model is untouched.
Will third parties be able to build adapters?: IBM says it is working on tutorials and an Adapter SDK intended for developers and third-party providers, with more information to come.