Jamba2 Mini
Jamba2 Mini is an open-source model in AI21 Labs’ Jamba2 family, released on January 8, 2026 alongside Jamba2 3B. It is built on the SSM-Transformer architecture and aimed at grounded, steerable enterprise question answering without the overhead of a reasoning model.
Released
January 8, 2026
Type
llm
License
open-weight
Apache 2.0
Context
—
The developer states a context window of “256K” tokens.
Pricing
Input
$0.20 / 1M tokens
Output
$0.40 / 1M tokens
List price on the developer's own pages, checked . Listed as “Jamba Mini” on AI21’s pricing page; AI21’s docs say the jamba-mini API alias points to jamba-mini-2-2026-01 (Jamba2 Mini).
Capabilities
Architecture
Parameters: 52B total, 12B active (Mixture of Experts)
Sources
Every figure on this page was checked against these pages on . A figure we could not source is left out.
- AI21 blog: Introducing Jamba2 (opens in a new tab)
- AI21 docs: Jamba foundation models (opens in a new tab)
- AI21 pricing (opens in a new tab)
- Hugging Face: ai21labs/AI21-Jamba2-Mini (opens in a new tab)
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