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

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Claude Opus 4.5 vs Gemini Omni

2 vs 0 benchmarks won

Anthropic
Claude Opus 4.5
Google
Gemini Omni
Overview
CompanyAnthropicGoogle
Release dateNov 24 2025May 19 2026
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
87%
Software engineering
SWE-Bench Verified
80.9%
Multimodal understanding
MMMU
Timeline
Release gapClaude Opus 4.5 shipped 176 days before Gemini Omni

Which is better: Claude Opus 4.5 or Gemini Omni?

Claude Opus 4.5 leads Gemini Omni on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Claude Opus 4.5 shipped 176 days before Gemini Omni, so benchmark comparisons should account for the intervening progress.

Published specifications for these two models are limited — see each model page for the latest details.

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 Opus 4.5 released?
Claude Opus 4.5 was released by Anthropic on Nov 24 2025.
When was Gemini Omni released?
Gemini Omni was released by Google on May 19 2026.

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