GPT-5.1 vs Mistral Small 4

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.

GPT-5.1 is priced at $1.50 input / $6.00 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Mistral Small 4. Mistral Small 4 has the larger context window at 256K, compared with 200K for GPT-5.1.

Quick Verdict

Benchmark data for GPT-5.1 and Mistral Small 4 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.

89%
HumanEval
Coming soon

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.

93%
SimpleQA
Coming soon
91%
MuSR
Coming soon

Knowledge

GPT-5.1

GPT-5.1

94

Mistral Small 4

59.1

97%
MMLU
Coming soon
95%
GPQA
59.1%
93%
SuperGPQA
Coming soon
91%
OpenBookQA
Coming soon

Instruction Following

Coming soon

Benchmark data for this category is coming soon.

Multilingual

Coming soon

Benchmark data for this category is coming soon.

Mathematics

GPT-5.1

GPT-5.1

96

Mistral Small 4

36

99%
AIME 2023
Coming soon
99%
AIME 2024
Coming soon
98%
AIME 2025
36%
95%
HMMT Feb 2023
Coming soon
97%
HMMT Feb 2024
Coming soon
96%
HMMT Feb 2025
Coming soon
96%
BRUMO 2025
Coming soon

Frequently Asked Questions

Can I compare GPT-5.1 and Mistral Small 4 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 GPT-5.1 and Mistral Small 4 today?

GPT-5.1: $1.50 input / $6.00 output per 1M tokens 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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