Side-by-side comparison of Jamba 1.5 Large (AI21 Labs · Israel) and Mistral Small 4 (Mistral AI · France) for self-hosted deployment of the open-weight model. Jamba 1.5 Large is rated conditional; Mistral Small 4 is EU-ready. They part ways on licence: Jamba 1.5 Large is "Jamba Open", Mistral Small 4 is "Apache 2.0".
| Field | ||
|---|---|---|
| Summary | ||
| Verdict | Conditional SSM-Transformer hybrid (Mamba) with 256K context. Jamba Open Model License permits commercial use below $50M annual revenue; above that, paid licence required. Israel jurisdiction; EU adequacy decision in place. | EU-ready Unified model folding Instruct, reasoning (Magistral) and code (Devstral) into a single 119B MoE under Apache 2.0. 6.5B active params, 256K context, 24 languages, toggleable reasoning effort. Strongest permissive EU option at this scale. |
| Last reviewed | 2026-04-15 | 2026-04-15 |
| Open-weight | ||
| Licence | Jamba Open | Apache 2.0 |
| Commercial use | Under $50M rev. | Yes |
| Training data | Undisclosed | Undisclosed |
| Origin | Israel | EU |
| Performance & pricing? | ||
| Quality index | 11/100 | 19/100 |
| Speed | — | 147 tok/s |
| Blended price | $3.50/M | $0.26/M |
| Context window | — | — |
| Evidence | ||
| Sources | ||
No overlapping sources between the two entries.