AI Model Release Tracker - Timeline of Major AI Models from 2022-2026

Home/Compare/Claude 3.5 Haiku vs Mistral Small 3.1

Claude 3.5 Haiku vs Mistral Small 3.1

2 vs 0 benchmarks won

Anthropic
Claude 3.5 Haiku
Mistral
Mistral Small 3.1
Overview
CompanyAnthropicMistral
Release dateOct 22 2024Mar 17 2025
Model type
Open sourceNoYes
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
41.6%
Software engineering
SWE-Bench Verified
40.6%
Multimodal understanding
MMMU
Timeline
Release gapClaude 3.5 Haiku shipped 146 days before Mistral Small 3.1

Which is better: Claude 3.5 Haiku or Mistral Small 3.1?

Claude 3.5 Haiku leads Mistral Small 3.1 on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Claude 3.5 Haiku shipped 146 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 3.5 Haiku 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 3.5 Haiku released?
Claude 3.5 Haiku was released by Anthropic on Oct 22 2024.
When was Mistral Small 3.1 released?
Mistral Small 3.1 was released by Mistral on Mar 17 2025.
Is Claude 3.5 Haiku or Mistral Small 3.1 open source?
Mistral Small 3.1 is an open-source / open-weight model released by Mistral. Claude 3.5 Haiku is a proprietary model released by Anthropic.

Other comparisons