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Claude Sonnet 4.5 vs Mistral 7B

3 vs 0 benchmarks won

Anthropic
Claude Sonnet 4.5
Mistral
Mistral 7B
Overview
CompanyAnthropicMistral
Release dateSep 29 2025Sep 27 2023
Model type
Open sourceNoYes
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
83.4%
Software engineering
SWE-Bench Verified
77.2%
Multimodal understanding
MMMU
68%
Timeline
Release gapMistral 7B shipped 733 days before Claude Sonnet 4.5

Which is better: Claude Sonnet 4.5 or Mistral 7B?

Claude Sonnet 4.5 leads Mistral 7B on 3 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Mistral 7B shipped 733 days before Claude Sonnet 4.5, so benchmark comparisons should account for the intervening progress.

Mistral 7B is an open-source / open-weight model; Claude Sonnet 4.5 is proprietary.

Direct benchmark comparisons are unavailable — at least one of these models has not published scores on GPQA Diamond, SWE-Bench Verified, or MMMU.

Frequently asked questions

When was Claude Sonnet 4.5 released?
Claude Sonnet 4.5 was released by Anthropic on Sep 29 2025.
When was Mistral 7B released?
Mistral 7B was released by Mistral on Sep 27 2023.
Is Claude Sonnet 4.5 or Mistral 7B open source?
Mistral 7B is an open-source / open-weight model released by Mistral. Claude Sonnet 4.5 is a proprietary model released by Anthropic.

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