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Claude Instant 1.2 vs Mistral Small 3.1

Anthropic Claude Instant 1.2 vs Mistral Mistral Small 3.1 — side-by-side specs.

Anthropic
Claude Instant 1.2
Mistral
Mistral Small 3.1
Overview
CompanyAnthropicMistral
Release dateAug 9 2023Mar 17 2025
Model type
Open sourceNoYes
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapClaude Instant 1.2 shipped 586 days before Mistral Small 3.1

Which is better: Claude Instant 1.2 or Mistral Small 3.1?

Claude Instant 1.2 and Mistral Small 3.1 do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Claude Instant 1.2 shipped 586 days before Mistral Small 3.1, so benchmark comparisons should account for the intervening progress.

Mistral Small 3.1 is an open-source / open-weight model; Claude Instant 1.2 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 Instant 1.2 released?
Claude Instant 1.2 was released by Anthropic on Aug 9 2023.
When was Mistral Small 3.1 released?
Mistral Small 3.1 was released by Mistral on Mar 17 2025.
Is Claude Instant 1.2 or Mistral Small 3.1 open source?
Mistral Small 3.1 is an open-source / open-weight model released by Mistral. Claude Instant 1.2 is a proprietary model released by Anthropic.

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