Mistral Small 4 vs o3-pro

Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.

Benchmark data for one or both models is coming soon. This page currently shows metadata and pricing where BenchLM has it, and score-level comparisons will populate as public benchmark results land.

BenchLM does not have sourced benchmark coverage for Mistral Small 4 yet. This comparison is currently limited to metadata such as context window, reasoning mode, and pricing where available.

Mistral Small 4 has the larger context window at 256K, compared with 200K for o3-pro.

Quick Verdict

Benchmark data for Mistral Small 4 and o3-pro is coming soon on BenchLM.

Agentic

Coming soon

Benchmark data for this category is coming soon.

Coding

Coming soon

Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.

Coming soon
HumanEval
80%

Multimodal & Grounded

Coming soon

Benchmark data for this category is coming soon.

Reasoning

Coming soon

Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.

Coming soon
SimpleQA
86%
Coming soon
MuSR
84%

Knowledge

o3-pro

Mistral Small 4

59.1

o3-pro

88

59.1%
GPQA
89%
Coming soon
MMLU
88%
Coming soon
SuperGPQA
87%
Coming soon
OpenBookQA
85%

Instruction Following

Coming soon

Benchmark data for this category is coming soon.

Multilingual

Coming soon

Benchmark data for this category is coming soon.

Mathematics

o3-pro

Mistral Small 4

36

o3-pro

89

36%
AIME 2025
91%
Coming soon
AIME 2023
90%
Coming soon
AIME 2024
92%
Coming soon
HMMT Feb 2023
86%
Coming soon
HMMT Feb 2024
88%
Coming soon
HMMT Feb 2025
87%
Coming soon
BRUMO 2025
89%

Frequently Asked Questions

Can I compare Mistral Small 4 and o3-pro on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.

Why does this comparison show “coming soon”?

BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.

What data is available for Mistral Small 4 and o3-pro today?

Mistral Small 4: $0.00 input / $0.00 output per 1M tokens Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.

Last updated: March 17, 2026

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