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Jamba2 Mini

Self-hosted enterprise QA where you want 256K context and Apache-2.0 freedom; answers without the token overhead of a reasoning model. Not on AI21's paid price list.

Open weights · Permissive (Apache, MIT, OpenMDW) · Data checked September 6, 2026 · Not a hands-on evaluation

Model ID ai21labs/AI21-Jamba2-Mini

Parameters
52B total · 12B active52B total / 12B active
Architecture
Mixture of experts
Context window
256,000 tokensMaximum input
Max output
Not recordedPer response
Input price
Not published
Output price
Not published
Cached input
Not published
Blended price
Not available3:1 input to output
Knowledge cutoff
Not recorded
Released
2026-02
Status
ga
Size band
40B to 120B

License and openness

Jamba2 Mini is released under the Apache 2.0. This is a permissive license. It generally allows use, modification and redistribution, including commercial use, subject to attribution and notice requirements. License terms can change between versions; confirm the text published with the weights you download.

Capabilities

Input modalitiestext
Output modalitiestext

What it is for

Not on AI21's paid price list.

Cost at list price

InputNot published
OutputNot published
Cached inputNot published
Blended, 3:1Not available

The provider publishes no per-token price for this model. Any price you see elsewhere belongs to a third-party host, and running the weights yourself has hardware costs instead.

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Sources

Sources checked September 6, 2026. Specifications and prices change without notice; confirm against the provider before you commit.

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