---
title: "Jamba2 is not in this catalogue · Undominated.ai"
canonical: https://undominated.ai/models/ai21__jamba2-mini/
description: "AI21 publishes Jamba2. This catalogue has never carried an AI21 row. Listed nearby (not this SKU): mistralai/mistral-small-2603, microsoft/phi-4, google/gemma-4-31b-it"
---

# Jamba2 is not in this catalogue · Undominated.ai

> AI21 publishes Jamba2. This catalogue has never carried an AI21 row. Listed nearby (not this SKU): mistralai/mistral-small-2603, microsoft/phi-4, google/gemma-4-31b-it

# Jamba2

AI21 · not a catalogue row

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## AI21 publishes Jamba2. This catalogue has never carried an AI21 row.

Jamba2 3B and Jamba2 Mini are released under Apache 2.0 through AI21 Studio and Hugging Face. Neither is on the registry this catalogue prices, and no AI21 model is.

 - AI21's own announcement introduces Jamba2, released under Apache 2.0 and available through AI21 Studio and Hugging Face.
- This catalogue holds zero AI21 rows. That is a fact about the registry it reads, not a judgement about the model: OpenRouter carries no AI21 model at all as of 2026-09-04.
- Open weights are not the same as a purchasable API row. The self-host page prices open-weight models against real hardware where a parameter count is sourced; it holds no Jamba2 profile, so it makes no claim about one.

## Look at these instead

 - [mistralai/mistral-small-2603](/models/mistralai__mistral-small-2603/)
- [microsoft/phi-4](/models/microsoft__phi-4/)
- [google/gemma-4-31b-it](/models/google__gemma-4-31b-it/)

## Sources

 - [AI21, Introducing Jamba2](https://www.ai21.com/blog/introducing-jamba2/)
- [OpenRouter model list](https://openrouter.ai/api/v1/models)

## Questions this page answers

 Is Jamba2 in this catalogue?

AI21 publishes Jamba2. This catalogue has never carried an AI21 row.

 What should I look at instead?

Jamba2 3B and Jamba2 Mini are released under Apache 2.0 through AI21 Studio and Hugging Face. Neither is on the registry this catalogue prices, and no AI21 model is.

## Continue your investigation

 - [Explore model families](/families/)
- [Compare a shortlist](/compare/)
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- [Understand the evidence](/methodology/)