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Composer 2.5 vs DeepSeek V2

Cursor Composer 2.5 vs DeepSeek DeepSeek V2 — side-by-side specs.

Cursor
Composer 2.5
DeepSeek
DeepSeek V2
Overview
CompanyCursorDeepSeek
Release dateMay 18 2026May 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 V2 shipped 747 days before Composer 2.5

Which is better: Composer 2.5 or DeepSeek V2?

Composer 2.5 and DeepSeek V2 do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. DeepSeek V2 shipped 747 days before Composer 2.5, so benchmark comparisons should account for the intervening progress.

DeepSeek V2 is an open-source / open-weight model; Composer 2.5 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 2.5 released?
Composer 2.5 was released by Cursor on May 18 2026.
When was DeepSeek V2 released?
DeepSeek V2 was released by DeepSeek on May 2024.
Is Composer 2.5 or DeepSeek V2 open source?
DeepSeek V2 is an open-source / open-weight model released by DeepSeek. Composer 2.5 is a proprietary model released by Cursor.

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