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

Claude Opus 4 vs Gemma 3

Anthropic
Claude Opus 4
Google
Gemma 3
Overview
CompanyAnthropicGoogle
Release dateMay 22 2025Mar 12 2025
AccessProprietaryOpen Weight
Benchmarks
Nonsense detection
BullshitBench v2
34%
Coding
SWE-Bench Verified
72.5%
Science
GPQA Diamond
79.6%
Timeline
Release gapGemma 3 shipped 71 days before Claude Opus 4

Which is better: Claude Opus 4 or Gemma 3?

Claude Opus 4 and Gemma 3 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Gemma 3 shipped 71 days before Claude Opus 4, so benchmark comparisons should account for the intervening progress.

Claude Opus 4 is proprietary, while Gemma 3 is open weight.

Direct benchmark comparisons are unavailable — Claude Opus 4 and Gemma 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.

Gemma 3 was released by Google on Mar 12 2025.

Claude Opus 4 is a proprietary model released by Anthropic. Gemma 3 is an open weight model released by Google.

Other comparisons