AI Model Release Tracker - Timeline of Major AI Models from 2022-2026

Claude Opus 4 vs LLaMA 3.3

Anthropic
Claude Opus 4
Meta
LLaMA 3.3
Overview
CompanyAnthropicMeta
Release dateMay 22 2025Dec 6 2024
AccessProprietaryOpen Weight
Specifications
Parameters
70B
Benchmarks
Nonsense detection
BullshitBench v2
34%
Coding
SWE-Bench Verified
72.5%
Science
GPQA Diamond
79.6%
Timeline
Release gapLLaMA 3.3 shipped 167 days before Claude Opus 4

Which is better: Claude Opus 4 or LLaMA 3.3?

Claude Opus 4 and LLaMA 3.3 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. LLaMA 3.3 shipped 167 days before Claude Opus 4, so benchmark comparisons should account for the intervening progress.

Claude Opus 4 is proprietary, while LLaMA 3.3 is open weight.

Direct benchmark comparisons are unavailable — Claude Opus 4 and LLaMA 3.3 don't publish scores on any of the same benchmarks.

Frequently asked questions

Claude Opus 4 was released by Anthropic on May 22 2025.

LLaMA 3.3 was released by Meta on Dec 6 2024.

Claude Opus 4 is a proprietary model released by Anthropic. LLaMA 3.3 is an open weight model released by Meta.

Other comparisons