IBM logo

Granite 4.0

IBMOpen WeightsPending Human Review

Granite 4.0 is IBM’s hybrid enterprise language family, combining Mamba-style state-space layers and attention to reduce long-context memory. Its sparse Small and Tiny tiers target retrieval and agents; dense Micro and later Nano checkpoints serve lower-resource applications. The initial release included Apache-licensed weights and watsonx access. This family page groups size tiers while documenting that Nano was released later in October, rather than assigning all future checkpoints the first announcement date.

2025-10-02
350M–32B
Hybrid Mamba/Transformer; dense and sparse tiers
Apache-2.0

Specifications

Parameters
350M–32B
Architecture
Hybrid Mamba/Transformer; dense and sparse tiers
License
Apache-2.0
Type
text
Modalities
text

Benchmark Scores

Advanced Specifications

Model Family
Granite
API Access
Available
Chat Interface
Not Available
Variants
granite-4.0-h-smallgranite-4.0-h-tinygranite-4.0-h-microgranite-4.0-microgranite-4.0-h-1b (October 2025)granite-4.0-h-350m (October 2025)

Capabilities & Limitations

Capabilities
instruction followingtool useefficient inference
Known Limitations
Architecture and limits vary by sizeNano tiers followed the original releaseAgent outcomes depend on external tools
Notable Use Cases
enterprise retrievalprivate agentslocal assistants

Related Models