Devstral Small 1.1 vs o1-pro
Devstral Small 1.1 and o1-pro are closely matched at 9.3 and 19.7 on the LLM Stats Score.
Mistral AI · OpenAI · Updated for 2026
Which is better?
Devstral Small 1.1 and o1-pro are closely matched on the overall LLM Stats Score at 9.3 and 19.7.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Devstral Small 1.1
- you want the most recent training data — it shipped Jul 2025
- you need open weights you can self-host or fine-tune
Choose o1-pro
- you are already invested in the OpenAI ecosystem
At a glance
The differences that matter most.
Individual benchmarks
1 reported for Devstral Small 1.1 · 2 for o1-pro
Devstral Small 1.1 and o1-prodon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.
Human preference
Blind head-to-head votes and playground preference scores
Context Window
Maximum input and output token capacity
Only Devstral Small 1.1 specifies input context (128,000 tokens). Only Devstral Small 1.1 specifies output context (128,000 tokens).
Input capabilities
Documented input modalities across available providers
o1-pro supports multimodal inputs, whereas Devstral Small 1.1 does not.
o1-pro can handle both text and other forms of data like images, making it suitable for multimodal applications.
Devstral Small 1.1
o1-pro
License
Usage and distribution terms
Devstral Small 1.1 is licensed under Apache 2.0, while o1-pro uses a proprietary license.
License differences may affect how you can use these models in commercial or open-source projects.
Apache 2.0
Open weights
Proprietary
Closed source
Release Timeline
When each model was launched
Devstral Small 1.1 was released on 2025-07-11, while o1-pro was released on 2024-12-17.
Devstral Small 1.1 is 7 months newer than o1-pro.
Jul 11, 2025
1.2 years ago
6mo newerDec 17, 2024
1.8 years ago
Knowledge Cutoff
When training data ends
o1-pro has a documented knowledge cutoff of 2023-09-30, while Devstral Small 1.1's cutoff date is not specified.
We can confirm o1-pro's training data extends to 2023-09-30, but cannot make a direct comparison without Devstral Small 1.1's cutoff date.
—
Sep 2023
Outputs Comparison
Judge for yourself.
Run your own prompts against Devstral Small 1.1 and o1-pro side-by-side, then vote on the output you prefer.
FAQ
Common questions about Devstral Small 1.1 vs o1-pro.