Gemini 2.5 Pro is the stronger all-rounder.
Scores updated · 11 tests both models report · How we compare
Where each one wins
Tests won in each of the two areas where both have results. Each piece is one test, so a longer bar means more evidence; grey means the two scored within a point of each other.
Reasoning and images and charts rest on a single test each.
What it costs
Prices per million tokens, roughly 750,000 words. The bars show the cost of a million tokens read plus a million written.
Gemini 2.5 Pro costs 38% less for the same work.
The biggest differences
The tests each model wins by the widest margin, up to three each. Scores are out of 100.
Where Gemini 2.5 Pro pulls ahead
- Graduate-level biology, physics and chemistry questionsGPQA Diamond+8.2points ahead
- College exam questions with charts, maps and diagramsMMMU+6.4points ahead
Where Grok 3 Beta pulls ahead
No clear win on a test scored out of 100.
Every test, side by side
All 11 tests both models report. The winning score is in its model's colour; marks a score checked independently.
Other results9 tests, not counted
Tests outside the eight areas. They are not counted above: several are summary scores built from other tests, or the same test under another name.
- Aider-PolyglotGemini 2.5 Pro by 23.276.553.3+23.2
- AIR-Bench 2024Gemini 2.5 Pro by 22.373.651.3+22.3
- HarmBenchGemini 2.5 Pro by 20.165.445.3+20.1
- LiveCodeBenchGemini 2.5 Pro by 17.274.257+17.2
- SimpleQAGemini 2.5 Pro by 7.250.843.6+7.2
- MMLU-ProGemini 2.5 Pro by 6.18679.9+6.1
- anthropic_red_teamGemini 2.5 Pro by 499.595.5+4
- XSTestGemini 2.5 Pro by 2.398.796.4+2.3
- simple_safety_teststie9796.8tie
Questions people ask
Which is better, Gemini 2.5 Pro or Grok 3 Beta?
Gemini 2.5 Pro wins all two areas where both have results: reasoning and images and charts. Grok 3 Beta wins none.
Which is cheaper?
Gemini 2.5 Pro costs $1.25 per million input tokens and $10.00 per million output tokens; Grok 3 Beta costs $3.00 and $15.00. That makes Gemini 2.5 Pro about 38% cheaper for the same work.
How do you compare the two?
We use the 11 benchmark tests both models have published scores on. The verdict counts the 2 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 9 are listed but not counted, because several are summary scores or repeat a test. Each score is the one shown on the model's own page.