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

Claude 3 Opus vs Gemma 3

Anthropic
Claude 3 Opus
Google
Gemma 3
Overview
CompanyAnthropicGoogle
Release dateMar 4 2024Mar 12 2025
AccessProprietaryOpen Weight
Benchmarks
Coding
SWE-Bench Verified
33%
Science
GPQA Diamond
50.4%
Timeline
Release gapClaude 3 Opus shipped 373 days before Gemma 3

Which is better: Claude 3 Opus or Gemma 3?

Claude 3 Opus and Gemma 3 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude 3 Opus shipped 373 days before Gemma 3, so benchmark comparisons should account for the intervening progress.

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

Direct benchmark comparisons are unavailable — Claude 3 Opus and Gemma 3 don't publish scores on any of the same benchmarks.

Frequently asked questions

Claude 3 Opus was released by Anthropic on Mar 4 2024.

Gemma 3 was released by Google on Mar 12 2025.

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

Other comparisons