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Claude Sonnet 4.5 vs Ministral 3B

3 vs 0 benchmarks won

Anthropic
Claude Sonnet 4.5
Mistral
Ministral 3B
Overview
CompanyAnthropicMistral
Release dateSep 29 2025Oct 2024
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 gapMinistral 3B shipped 363 days before Claude Sonnet 4.5

Which is better: Claude Sonnet 4.5 or Ministral 3B?

Claude Sonnet 4.5 leads Ministral 3B on 3 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Ministral 3B shipped 363 days before Claude Sonnet 4.5, so benchmark comparisons should account for the intervening progress.

Ministral 3B 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 Ministral 3B released?
Ministral 3B was released by Mistral on Oct 2024.
Is Claude Sonnet 4.5 or Ministral 3B open source?
Ministral 3B 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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