Verdict
Gemini 3 Pro leads 3–1 across 4 shared benchmarks.
Gemini 2.5 Pro (May 2025) 1 · Gemini 3 Pro 3 · higher isn't always better — check the caveats below.
Reported scores — protocols may differ. How we compare
Reasoning: Gemini 3 Pro leads 2–0 across 2 shared reasoning benchmarks (largest gap: GPQA diamond, 90.15 vs 55.56 — single evaluator).
Vendor claims — compare against the measured scores above. A claim is what a developer says about its own model, not an independent measurement.
No vendor claims on file for Gemini 2.5 Pro (May 2025).
Context Handling
“state-of-the-art reasoning, vision and spatial understanding, leading multilingual performance, and 1 million-token context window”
Multimodal
“It's the best model in the world for multimodal understanding and our most powerful agentic and vibe coding model yet”
Reasoning
“It's state-of-the-art in reasoning, built to grasp depth and nuance”
Gemini 3 Pro leads 3–1 across 4 shared benchmarks. Gemini 2.5 Pro (May 2025) leads 1 benchmark and Gemini 3 Pro leads 3. Higher isn't always better — see the integrity caveats on each benchmark.
Gemini 2.5 Pro (May 2025) and Gemini 3 Pro have 4 benchmarks in common in our data — those are the only rows where a direct, apples-to-apples comparison is drawn.
Gemini 3 Pro leads reasoning 2–0.