Claude Opus 4.5vsGemini 3.6 Flash
Claude Opus 4.5 | Gemini 3.6 Flash | |
|---|---|---|
| Benchmarks | ||
Nonsense detection BullshitBench v2Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | 90% | — |
Coding SWE-Bench VerifiedReal coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better. | 80.9% | — |
Agentic coding DeepSWE 1.1Artificial Analysis' independent test of deep, agentic software-engineering work — the AI has to plan and carry out substantial coding tasks end to end. (Version 1.1 of the test.) Higher is better. | — | 49% |
ML engineering MLE-BenchCan the AI do the work of a machine-learning engineer? It competes in real Kaggle competitions — building, training, and tuning models end to end — and the score reflects how well it places. Higher is better. | — | 63.9% |
Browser agent BU BenchCan the AI drive a real web browser to finish tasks — clicking, filling forms, and navigating sites the way a person would? Run by Browser Use on their BU Bench task set. Higher is better. | — | 68% |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 87% | — |
Agentic computer use OSWorld-VerifiedCan the AI actually operate a computer — clicking, typing, and using real apps — to finish tasks on its own? Higher is better. | — | 83% |
Knowledge work GDPval-AA v2economically valuable knowledge work (v2, re-based Elo) | — | 1421 |
| Timeline | ||
| Release gap | Claude Opus 4.5 shipped 239 days before Gemini 3.6 Flash | |
| Overview | ||
| Company | Anthropic | |
| Release date | Nov 24 2025 | Jul 21 2026 |
| Access | Proprietary | Proprietary |
Which is better: Claude Opus 4.5 or Gemini 3.6 Flash?
Claude Opus 4.5 and Gemini 3.6 Flash don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude Opus 4.5 shipped 239 days before Gemini 3.6 Flash, 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 — Claude Opus 4.5 and Gemini 3.6 Flash don't publish scores on any of the same benchmarks.
Frequently asked questions
Claude Opus 4.5 was released by Anthropic on Nov 24 2025.
Gemini 3.6 Flash was released by Google on Jul 21 2026.
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