Open-Source AI21 Models

Quick answer · Updated June 2026

The best open-weight AI21 model is Jamba Large 1.7 (10.9 intelligence) — downloadable from Hugging Face and self-hostable.

10.9Intelligence

15 t/sSpeed

$2.00Input /M

256KContext

The best open-weight AI models — downloadable from Hugging Face and self-hostable — ranked by intelligence. Open-source alternatives to proprietary frontier models.

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jamba-large-1.7
ToolsJSON10.9 intel · $2.00/M · 15 t/s
10.9
Intelligence

Frequently asked

What is the best open-source AI21 model?

The best open-weight AI21 model is Jamba Large 1.7 (10.9 intelligence) — downloadable from Hugging Face and self-hostable.

How many AI21 models are there?

modelgrep tracks 1 AI21 models with live benchmarks, speed, latency and per-provider pricing, led on intelligence by Jamba Large 1.7. 1 of them qualify for this ranking.

More AI21 rankings

AI21: Smartest LLMs AI21: Best LLMs for Coding AI21: Best LLMs for Design & Frontend AI21: Fastest LLMs AI21: Lowest-Latency LLMs AI21: Cheapest LLMs AI21: Best Free LLMs AI21: Best Reasoning LLMs AI21: Best Vision LLMs AI21: Best LLMs for Agents AI21: Longest-Context LLMs

All rankings

Small & Fast LLMs Smartest LLMs Best LLMs for Coding Best LLMs for Design & Frontend Fastest LLMs Lowest-Latency LLMs Cheapest LLMs Best Free LLMs Best Reasoning LLMs Best Vision LLMs Best LLMs for Agents Longest-Context LLMs