Mistral Small 3.1 24B, released on March 17, 2025, is an open-weight multimodal model from Mistral AI, distributed under the Apache-2.0 license. With around 24B parameters and a 128K token context window, it is available in both base and instruction-tuned (“Instruct”) variants. The model introduces vision support alongside text, enabling tasks like multimodal reasoning, captioning, and image-based Q&A.
It is multilingual, supporting many languages, and is optimized for fast responses, function calling, structured dialogue, and long-context reasoning. Despite its size, the model can be run locally in quantized formats, fitting on machines with ~32GB RAM, making it accessible to developers outside large cloud setups. However, the output length is smaller than the 128K input window, meaning long generations may require chaining. In addition, using full vision features or the maximum context window significantly increases compute costs, and performance on highly complex reasoning or enterprise-scale tasks still trails larger proprietary frontier models.
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Past 30 DaysMistral Small 3.1 24B has not yet been evaluated on the current benchmark. The results below are from the legacy version of Vision Evals, our previous benchmark. See the current Vision Evals
| Category | Passed | Score |
|---|---|---|
| Defect Detection | 10 / 15 | 66.7% |
| Object Understanding | 7 / 14 | 50% |
| Spatial Understanding | 8 / 19 | 42.1% |
| Document Understanding | 1 / 9 | 11.1% |
| Object Counting | 0 / 10 | 0% |
| Category | Passed | Score |
|---|---|---|
| Text Recognition | 21 / 30 | 70% |
| Focused Scene OCR | 30 / 99 | 30.3% |
| VQA & Extraction | 18 / 60 | 30% |
| Handwritten Math | 0 / 10 | 0% |
Scores based on a single evaluation run · Methodology
View all legacy Vision Evals results →Mistral Small 3.1 24B costs $0.351 per 1M input tokens and $0.555 per 1M output tokens.
Pricing updated Aug 23, 2026
Estimated cost per task vs. Visual Understanding score, for this model and others ranked near it. Upper-left is the sweet spot (high quality, low cost). Based on Vision Evals (legacy) results.
6 of 7 models plotted · 1 not yet evaluated
| Model | Score | Median tokens | Est. cost / task | Compare |
|---|---|---|---|---|
| Claude Haiku 4.5 | 58.2% | 2.3K | $0.0030 | Compare |
| GPT-5 Nano | 58.2% | 2.7K | $0.0003 | Compare |
| Qwen3.5 397B A17B | 58.2% | 1.5K | $0.0006 | Compare |
| Gemini 2.5 Flash | 55.2% | 476 | $0.0005 | Compare |
| Gemini 2.5 Flash-Lite | 53.7% | 301 | <$0.0001 | Compare |
| Mistral Small 3.1 24B(this model) | 38.8% | — | — | — |
| Kimi K2.5 | 35.8% | 2.7K | $0.0024 | Compare |
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Mistral Small 3.1 24B is released under Apache-2.0, a permissive license. The Mistral Small 3.1 24B license lets you run, fine-tune, and redistribute the model in commercial products with no obligation to open-source related code changes, so no separate commercial license is required.
Apache-2.0 grants an express patent license that terminates if you bring a patent claim over the work, and it disclaims warranties. Validate Mistral Small 3.1 24B on your own data before you depend on it in production.
Read the full Apache 2.0 license ↗This is the straightforward case: a permissive license is the best technical solution and you are free to deploy Mistral Small 3.1 24B commercially without open-sourcing your own code.
Do not hesitate to reach out with questions for your commercial project — our team will help you start solving business problems on the first call. See Roboflow commercial licensing for the models included in each plan.
Talk to salesThis model is released under the Apache License 2.0, a permissive open-source license that allows commercial use, modification, distribution, and patent use.
Yes. Under the terms of the Apache 2.0 license, you can freely use this model for commercial purposes, including in proprietary products. You must retain the copyright notice and disclaimers when redistributing.
License information is provided as a guide and is not legal advice.
Yes. Mistral Small 3.1 24B accepts image input, and on Roboflow's previous vision benchmark it passed 38.8% of visual understanding tasks (#71 of 77) and scored 34.7% on OCR. You can test it on your own image in the demo above.
Mistral Small 3.1 24B has not yet been evaluated on Roboflow's current Vision Evals. The results on this page are from the previous benchmark.
Yes. The demo on this page runs Mistral Small 3.1 24B in the free Roboflow Playground: upload an image and see results in seconds. A free account unlocks unlimited runs.