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Composer 2.5 vs LLaMA 3.1

Cursor Composer 2.5 vs Meta LLaMA 3.1 — side-by-side specs.

Cursor
Composer 2.5
Meta
LLaMA 3.1
Overview
CompanyCursorMeta
Release dateMay 18 2026Jul 23 2024
Model type
Open sourceNoYes
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapLLaMA 3.1 shipped 664 days before Composer 2.5

Which is better: Composer 2.5 or LLaMA 3.1?

Composer 2.5 and LLaMA 3.1 do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. LLaMA 3.1 shipped 664 days before Composer 2.5, so benchmark comparisons should account for the intervening progress.

LLaMA 3.1 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 LLaMA 3.1 released?
LLaMA 3.1 was released by Meta on Jul 23 2024.
Is Composer 2.5 or LLaMA 3.1 open source?
LLaMA 3.1 is an open-source / open-weight model released by Meta. Composer 2.5 is a proprietary model released by Cursor.

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