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AI · May 8, 2026

Jamba by AI21 Labs

The open-source LLM that runs 800pg of context at 2.5x speed

Jamba by AI21 Labs launched on May 8, 2026.

What it does

Most LLMs choke on long context. Jamba doesn't. Built on a hybrid Mamba-Transformer architecture, it handles 256K tokens at 2.5x the speed fits on a single 80GB GPU, fully open-source, and actually validated on benchmarks.

Org profile for AI21 on Hugging Face, the AI community building the future.

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