GPT-5.2 Pro is the stronger all-rounder.Gemini 2.5 Pro is cheaper.
Scores updated · 11 tests both models report · How we compare
Where each one wins
Tests won in each of the three 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.
Agents rests on a single test.
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 94% 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 GPT-5.2 Pro pulls ahead
- Finds hard-to-locate facts by browsing the webBrowseComp+68points ahead
- Unpublished advanced math problemsFrontierMath Tiers 1-3 (v2)+49.4points ahead
- Abstract visual puzzles that people can solveARC-AGI-2+49.3points ahead
Where Gemini 2.5 Pro 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.
ReasoningGPT-5.2 Pro
- ARC-AGI-2GPT-5.2 Pro by 49.34.954.2+49.3
- Humanity's Last ExamGPT-5.2 Pro by 18.61836.6+18.6
- GPQA DiamondGPT-5.2 Pro by 9.683.693.2+9.6
- SimpleBenchGPT-5.2 Pro by 5.851.657.4+5.8
MathGPT-5.2 Pro
- FrontierMath Tiers 1-3 (v2)GPT-5.2 Pro by 49.424.674+49.4
- FrontierMath Tier 4GPT-5.2 Pro by 46046+46
Other results4 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.
- ARC-AGI-1GPT-5.2 Pro by 53.53790.5+53.5
- HMMT 2025GPT-5.2 Pro by 34.365.7100+34.3
- frontiermath_tier_4_v1GPT-5.2 Pro by 27.14.231.3+27.1
- AIME 2025GPT-5.2 Pro by 1783100+17
Questions people ask
Which is better, Gemini 2.5 Pro or GPT-5.2 Pro?
GPT-5.2 Pro wins all three areas where both have results: agents, reasoning and math. Gemini 2.5 Pro wins none, but costs 94% less.
Which is cheaper?
Gemini 2.5 Pro costs $1.25 per million input tokens and $10.00 per million output tokens; GPT-5.2 Pro costs $21.00 and $168.00. That makes Gemini 2.5 Pro about 94% 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 7 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 4 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.