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Composer vs DeepSeek Coder V2

Cursor Composer vs DeepSeek DeepSeek Coder V2 — side-by-side specs.

Cursor
Composer
DeepSeek
DeepSeek Coder V2
Overview
CompanyCursorDeepSeek
Release dateOct 29 2025Jun 2024
Model type
Open sourceNoYes
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapDeepSeek Coder V2 shipped 515 days before Composer

Which is better: Composer or DeepSeek Coder V2?

Composer and DeepSeek Coder V2 do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. DeepSeek Coder V2 shipped 515 days before Composer, so benchmark comparisons should account for the intervening progress.

DeepSeek Coder V2 is an open-source / open-weight model; Composer 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 Composer released?
Composer was released by Cursor on Oct 29 2025.
When was DeepSeek Coder V2 released?
DeepSeek Coder V2 was released by DeepSeek on Jun 2024.
Is Composer or DeepSeek Coder V2 open source?
DeepSeek Coder V2 is an open-source / open-weight model released by DeepSeek. Composer is a proprietary model released by Cursor.

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