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Composer 2 vs DeepSeek Coder V2

Cursor Composer 2 vs DeepSeek DeepSeek Coder V2 — side-by-side specs.

Cursor
Composer 2
DeepSeek
DeepSeek Coder V2
Overview
CompanyCursorDeepSeek
Release dateMar 20 2026Jun 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 657 days before Composer 2

Which is better: Composer 2 or DeepSeek Coder V2?

Composer 2 and DeepSeek Coder V2 do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. DeepSeek Coder V2 shipped 657 days before Composer 2, so benchmark comparisons should account for the intervening progress.

DeepSeek Coder V2 is an open-source / open-weight model; Composer 2 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 2 released?
Composer 2 was released by Cursor on Mar 20 2026.
When was DeepSeek Coder V2 released?
DeepSeek Coder V2 was released by DeepSeek on Jun 2024.
Is Composer 2 or DeepSeek Coder V2 open source?
DeepSeek Coder V2 is an open-source / open-weight model released by DeepSeek. Composer 2 is a proprietary model released by Cursor.

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