Gemini 2.5 Pro vs GPT-4o mini
Wins 6 of 6 areas
Coding · Agents · Reasoning · Facts · Images and charts · Following instructions
Wins 0 of 6 areas
—
Gemini 2.5 Pro is the stronger all-rounder.GPT-4o mini is cheaper.
Scores updated · 27 tests both models report · How we compare
Where each one wins
Tests won in each of the six 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.
- CodingWriting and fixing software30Gemini 2.5 Pro3 of 3 tests
- ReasoningHard problems that need careful thinking30Gemini 2.5 Pro3 of 3 tests
- Images and chartsUnderstanding pictures, charts and video30Gemini 2.5 Pro3 of 3 tests
- AgentsCarrying out multi-step tasks on its own10Gemini 2.5 Pro1 of 2 tests · 1 tie
- FactsGetting facts right instead of making them up10Gemini 2.5 Pro1 of 1 test
- Following instructionsDoing exactly what it is asked10Gemini 2.5 Pro1 of 1 test
Facts and following instructions 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.
GPT-4o mini costs 93% 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
- Fixes real GitHub issues in Python projectsSWE-bench Verified+54.5points ahead
- Short factual questions, answered correctlySimpleQA Verified+47.7points ahead
- Graduate-level biology, physics and chemistry questionsGPQA Diamond+41points ahead
Where GPT-4o mini pulls ahead
No clear win on a test scored out of 100.
Every test, side by side
All 27 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingGemini 2.5 Pro
- SWE-bench VerifiedGemini 2.5 Pro by 54.563.28.7+54.5
- SciCodeGemini 2.5 Pro by 23.446.322.9+23.4
- Terminal-Bench 2.1Gemini 2.5 Pro by 22.928.55.6+22.9
AgentsGemini 2.5 Pro
- τ-Bench V3 · BankingGemini 2.5 Pro by 6.89.72.9+6.8
- GDPValtie00tie
ReasoningGemini 2.5 Pro
- GPQA DiamondGemini 2.5 Pro by 4183.642.6+41
- Humanity's Last ExamGemini 2.5 Pro by 13.8184.2+13.8
- ARC-AGI-2Gemini 2.5 Pro by 4.94.90+4.9
Images and chartsGemini 2.5 Pro
Following instructionsGemini 2.5 Pro
- IFBenchGemini 2.5 Pro by 17.748.731+17.7
Other results14 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 72.976.53.6+72.9
- livecodebench_mediumGemini 2.5 Pro by 65.490.625.2+65.4
- livecodebench_hardGemini 2.5 Pro by 55.159.44.3+55.1
- SimpleQAGemini 2.5 Pro by 40.950.89.9+40.9
- LiveCodeBenchGemini 2.5 Pro by 38.774.235.5+38.7
- Artificial Analysis Coding IndexGemini 2.5 Pro by 35.346.711.4+35.3
- MMLU-ProGemini 2.5 Pro by 24.38661.7+24.3
- HarmBenchGPT-4o mini by 19.565.484.9+19.5
- AIR-Bench 2024Gemini 2.5 Pro by 17.373.656.3+17.3
- livecodebench_easyGemini 2.5 Pro by 17.198.881.7+17.1
- AA IntelligenceGemini 2.5 Pro by 8.3156.7+8.3
- XSTestGemini 2.5 Pro by 2.798.796+2.7
- anthropic_red_teamGemini 2.5 Pro by 1.299.598.3+1.2
- simple_safety_teststie9797.8tie
Questions people ask
Which is better, Gemini 2.5 Pro or GPT-4o mini?
Gemini 2.5 Pro wins all six areas where both have results: coding, agents, reasoning, facts, images and charts and following instructions. GPT-4o mini wins none, but costs 93% less.
Which is better for coding?
Gemini 2.5 Pro. It wins 3 of the 3 coding tests both models report; GPT-4o mini wins none.
Which is cheaper?
Gemini 2.5 Pro costs $1.25 per million input tokens and $10.00 per million output tokens; GPT-4o mini costs $0.15 and $0.60. That makes GPT-4o mini about 93% cheaper for the same work.
How do you compare the two?
We use the 27 benchmark tests both models have published scores on. The verdict counts the 13 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 14 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.