License

Jamba Open Model License

AI21's open model licence. Permissive for most commercial use.

Commercial use

Yes

Modification

Yes

Redistribution

Yes

Attribution required

Yes

Read the full license text ↗

FAQ

Can I use Jamba commercially?

Yes, the Jamba Open Model License permits commercial use.

1 model under this license

Jamba 1.5 Large

398B

Hybrid Mamba-Transformer-MoE model with native 256K context (effective beyond 140K). 94B active parameters out of 398B total. The state-space-model layers give it linear-time scaling with sequence length, making it interesting for very long contexts. Licensed under AI21's open model licence, which permits most commercial use.

Context: 256K
License: jamba-open
VRAM Q4: 238.8 GB

Disclaimer: this summary is not legal advice. Read the actual license text before commercial deployment. Visit the comparison page to see all licenses side-by-side. — last reviewed 2026-06-08 · Open Source AI Models.