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Claude Sonnet 4.5 vs Ministral 3 8B-25-12

Anthropic Claude Sonnet 4.5 vs Mistral Ministral 3 8B-25-12 — side-by-side specs.

Anthropic
Claude Sonnet 4.5
Mistral
Ministral 3 8B-25-12
Overview
CompanyAnthropicMistral
Release dateSep 29 2025Dec 2 2025
Model type
Open sourceNoYes
Specifications
Parameters
Context window
Benchmarks
Coding
SWE-Bench Verified
77.2%
Science
GPQA Diamond
83.4%
Multimodal
MMMU
68%
Timeline
Release gapClaude Sonnet 4.5 shipped 64 days before Ministral 3 8B-25-12

Which is better: Claude Sonnet 4.5 or Ministral 3 8B-25-12?

Claude Sonnet 4.5 and Ministral 3 8B-25-12 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude Sonnet 4.5 shipped 64 days before Ministral 3 8B-25-12, so benchmark comparisons should account for the intervening progress.

Ministral 3 8B-25-12 is an open-source / open-weight model; Claude Sonnet 4.5 is proprietary.

Direct benchmark comparisons are unavailable — Claude Sonnet 4.5 and Ministral 3 8B-25-12 don't publish scores on any of the same benchmarks.

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 3 8B-25-12 released?
Ministral 3 8B-25-12 was released by Mistral on Dec 2 2025.
Is Claude Sonnet 4.5 or Ministral 3 8B-25-12 open source?
Ministral 3 8B-25-12 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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