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Claude Sonnet 4.6 vs LLaMA 3.1

2 vs 0 benchmarks won

Anthropic
Claude Sonnet 4.6
Meta
LLaMA 3.1
Overview
CompanyAnthropicMeta
Release dateFeb 17 2026Jul 23 2024
Model type
Open sourceNoYes
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
89.9%
Software engineering
SWE-Bench Verified
79.6%
Multimodal understanding
MMMU
Timeline
Release gapLLaMA 3.1 shipped 574 days before Claude Sonnet 4.6

Which is better: Claude Sonnet 4.6 or LLaMA 3.1?

Claude Sonnet 4.6 leads LLaMA 3.1 on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). LLaMA 3.1 shipped 574 days before Claude Sonnet 4.6, so benchmark comparisons should account for the intervening progress.

LLaMA 3.1 is an open-source / open-weight model; Claude Sonnet 4.6 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 Claude Sonnet 4.6 released?
Claude Sonnet 4.6 was released by Anthropic on Feb 17 2026.
When was LLaMA 3.1 released?
LLaMA 3.1 was released by Meta on Jul 23 2024.
Is Claude Sonnet 4.6 or LLaMA 3.1 open source?
LLaMA 3.1 is an open-source / open-weight model released by Meta. Claude Sonnet 4.6 is a proprietary model released by Anthropic.

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