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Claude 3.5 Haiku vs Composer

2 vs 0 benchmarks won

Anthropic
Claude 3.5 Haiku
Cursor
Composer
Overview
CompanyAnthropicCursor
Release dateOct 22 2024Oct 29 2025
Model type
Open sourceNoNo
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 372 days before Composer

Which is better: Claude 3.5 Haiku or Composer?

Claude 3.5 Haiku leads Composer on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Claude 3.5 Haiku shipped 372 days before Composer, so benchmark comparisons should account for the intervening progress.

Published specifications for these two models are limited — see each model page for the latest details.

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 Composer released?
Composer was released by Cursor on Oct 29 2025.

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