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Composer vs Kimi K1.5

Cursor Composer vs Moonshot AI Kimi K1.5 — side-by-side specs.

Cursor
Composer
Moonshot AI
Kimi K1.5
Overview
CompanyCursorMoonshot AI
Release dateOct 29 2025Jan 20 2025
Model type
Open sourceNoNo
Specifications
Parameters
Context window
128k
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapKimi K1.5 shipped 282 days before Composer

Which is better: Composer or Kimi K1.5?

Composer and Kimi K1.5 do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Kimi K1.5 shipped 282 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 Composer released?
Composer was released by Cursor on Oct 29 2025.
When was Kimi K1.5 released?
Kimi K1.5 was released by Moonshot AI on Jan 20 2025.

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