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Granite Switch 4.1.1 — Update models like you update software

AnnouncementModelOct 29, 2026

IBM released Granite Switch 4.1.1, a patch release fully backwards compatible with Granite Switch 4.1. The update includes a revised Granite Speech ASR model supporting speech-to-text in 10 languages with native punctuation and capitalization, plus an improved Decision adapter that scores better on the Jev Decision Index test set. IBM states the base model was untouched and only adapters were retrained; an Adapter SDK and tutorials are planned for third-party adapter development.

Why it matters

IBM has issued Granite Switch 4.1.1, a patch release to its Granite Switch 4.1 language model that is fully backwards compatible and requires no migration. The update contains two refreshed components: a revised Granite Speech ASR model that handles multilingual speech-to-text with native punctuation and capitalization, so transcripts need no separate formatting pass before use, and an improved Decision adapter that performs better on the Jev Decision Index test set. IBM emphasizes that the base model was left untouched; only the adapters were retrained, which allowed the update to ship quickly. The company frames this as evidence of its modular Switch architecture, in which specialized, cache-efficient adapters can be composed and deployed on a single endpoint. Looking ahead, IBM plans an Adapter SDK and tutorials so developers and third parties can build, version, and ship their own adapters, extending the software-style update pattern beyond IBM-provided models.

Receipt № 26261 source · awaiting confirmation ◐

Evidence

1source· awaiting independent confirmation

No score is assigned. Sources and their independence are shown in the citation chain below.

Citation chain · 1 source

01med
huggingface.coBloghttps://huggingface.co/blog/ibm-granite/granite-switch-4-1-1This is IBM's own announcement, explaining that the patch release retrained only the Granite Speech ASR model and Decision adapter while leaving the base model untouched, and previewing an Adapter SDK.
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IBMCompanyGranite Switch 4.1.1ModelGranite Switch 4.1ModelGranite Speech ASR modelModel

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Canonical: https://huggingface.co/blog/ibm-granite/granite-switch-4-1-1