Model Library
AI21 LabsReleased October 8, 2025Jamba Reasoning 3B
AI21 Labs · Released October 8, 2025
Intelligence score
4
At a glance
- Intelligence
- 4
- Speed
- —
- Latency
- —
- Input price
- Not published
- Output price
- Not published
- Context window
- 260Ktokens
- Parameters
- 3billions
Summary
Comparison summary
Jamba Reasoning 3B scores 4 (estimated) on the Artificial Analysis Intelligence Index, placing it above average among other open weight models of similar size (median: 4).
Specifications
Technical specifications
| Model name | Jamba Reasoning 3B |
|---|---|
| Provider | AI21 Labs |
| Release date | October 8, 2025 |
| Intelligence score | 4 |
| Speed | — |
| Latency (TTFT) | — |
| Input price | Not published |
| Output price | Not published |
| Context window | 260,000 tokens |
| Parameters | 3B |
| Reasoning | Yes |
| Input modalities | text |
| Output modalities | — |
| Open weights | Yes |
| License | Apache 2 |
| API availability | — |
| Source | Model Intelligence legacy profile: jamba-reasoning-3b |
FAQ · 15
Frequently asked questions
Jamba Reasoning 3B was released on October 8, 2025.
Jamba Reasoning 3B was created by AI21 Labs.
Jamba Reasoning 3B scores 4 (estimated) on the Artificial Analysis Intelligence Index, placing it above average among other open weight models of similar size (median: 4).
Yes, Jamba Reasoning 3B is a reasoning model. It uses extended thinking or chain-of-thought reasoning to work through complex problems before providing an answer.
Jamba Reasoning 3B supports text input.
Jamba Reasoning 3B supports text output.
No, Jamba Reasoning 3B does not support image input. It can only process text.
No, Jamba Reasoning 3B is not multimodal. It only supports text input.
Jamba Reasoning 3B has a context window of 260k tokens. This determines how much text and conversation history the model can process in a single request.
Yes, Jamba Reasoning 3B is open weights. The model weights are publicly available and can be downloaded for self-hosting.
Jamba Reasoning 3B has 3 billion parameters.
Jamba Reasoning 3B is released under the Apache 2.0 license. This license allows commercial use.
Jamba Reasoning 3B achieves a score of 4 on the Artificial Analysis Intelligence Index. This composite benchmark evaluates models across reasoning, knowledge, mathematics, and coding.
Jamba Reasoning 3B is an open weights model that can be self-hosted.
Jamba Reasoning 3B is an open weights model that can be downloaded and self-hosted.