Jamba

概述

Jamba is an open model family from AI21 Labs that combines Transformer attention with Mamba state-space layers, enabling very long context windows with efficient inference. Releases include Jamba 1.5 Mini and Large and later revisions, with a 256K-token context. Weights are open under the Jamba Open Model License, and hosted access is sold through AI21's platform and cloud partners.

主要功能

• Hybrid Transformer-Mamba architecture
• 256K-token context window
• Open weights for Mini and Large variants
• Hosted API via AI21 Studio and cloud partners

适用场景

• Long-document analysis and summarization
• Enterprise RAG over large corpora
• Research on hybrid state-space architectures

定价

Jamba weights are downloadable under the Jamba Open Model License; managed access through AI21 Studio and cloud marketplaces is billed per token.

常见问题

What is Jamba?

Jamba is AI21's open model family mixing Transformer and Mamba layers for efficient long-context language modeling.

How long is Jamba's context window?

Jamba models support a 256K-token context window.

Are Jamba models open?

Yes, weights are released under the Jamba Open Model License, with commercial hosted options from AI21.

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查看Jamba的全部替代品 → · 查看全部开放模型产品 →

来源

• Official website ↗
• AI21 Labs (Wikipedia) ↗

本记录最近复核于 2026-07-30。

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