Granite 4.0
IBMs open hybrid Mamba and transformer models for enterprise use
Free
Language
Undisclosed
parameters
Apache 2.0
license
Oct 2025
released
Granite 4.0 is IBM’s open model family built on a hybrid Mamba and transformer design. IBM says the H variants use over 70 percent less memory on long inputs than standard transformers. Released under Apache 2.0.
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