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Jamba 1.5 Large

Available
AI21 LabsOpen weights

Israel's AI21 hybrid Mamba-Transformer MoE, with a 256k context and strong long-document throughput.

Specifications

License
Open weights · Jamba Open Model License
Weights
Downloadable
Architecture
hybrid
Parameters
398B · 94B active
Context window
256K tokens
Max output
4K tokens
Knowledge cutoff
Mar 31, 2024
Price (in / out, $/M)
Modalities
Text

Benchmarks

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Vendor-reported figures are claims until independently verified. See methodology.