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Claude 3.5 Haiku vs Composer 2

2 vs 0 benchmarks won

Anthropic
Claude 3.5 Haiku
Cursor
Composer 2
Overview
CompanyAnthropicCursor
Release dateOct 22 2024Mar 20 2026
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 514 days before Composer 2

Which is better: Claude 3.5 Haiku or Composer 2?

Claude 3.5 Haiku leads Composer 2 on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Claude 3.5 Haiku shipped 514 days before Composer 2, 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 2 released?
Composer 2 was released by Cursor on Mar 20 2026.

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