Compare / Claude Opus 5 vs Gemini 3 Flash Preview

Claude Opus 5 vs Gemini 3 Flash Preview

3 results from 3 sources that measured both models. Each row is in the source's own units; there is no overall winner.

Claude Opus 5: Anthropic · profile
Gemini 3 Flash Preview: Google · profile
Results compared: 3
Shared sources: 3

Benchmark	Metric	Claude Opus 5	Gemini 3 Flash Preview
GDP.pdfreported	Professional document tasks% of rubric	24.0%	10.0%
SimpleQA Verified (Epoch AI)reported	Correct answers% of questions	59.9%	66.8%
Vending-Bench 2reported	Money after a yearUS dollars	$11,181.87	$3,634.72

Bold green marks the better value on that metric. Where a source reports ranges that overlap, the difference may not be meaningful; see the benchmark page for ranges.