Gemini 2.5 Pro vs GPT-4.1 mini
Wins 8 of 8 areas
Coding · Agents · Reasoning · Facts · Images and charts · Math · Long documents · Following instructions
Wins 0 of 8 areas
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Gemini 2.5 Pro is the stronger all-rounder.GPT-4.1 mini is cheaper.
Scores updated · 38 tests both models report · How we compare
Where each one wins
Tests won in each of the eight areas we test. 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 software40Gemini 2.5 Pro4 of 4 tests
- ReasoningHard problems that need careful thinking40Gemini 2.5 Pro4 of 4 tests
- Images and chartsUnderstanding pictures, charts and video40Gemini 2.5 Pro4 of 4 tests
- FactsGetting facts right instead of making them up30Gemini 2.5 Pro3 of 3 tests
- Following instructionsDoing exactly what it is asked20Gemini 2.5 Pro2 of 2 tests
- AgentsCarrying out multi-step tasks on its own10Gemini 2.5 Pro1 of 2 tests · 1 tie
- MathCompetition and research-level math10Gemini 2.5 Pro1 of 1 test
- Long documentsFinding answers in very long texts10Gemini 2.5 Pro1 of 1 test
Math and long documents 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-4.1 mini costs 82% 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
- Short factual questions, answered correctlySimpleQA Verified+43.3points ahead
- Fixes real GitHub issues in Python projectsSWE-bench Verified+39.6points ahead
- Reasons across sets of long documentsAA-LCR+25points ahead
Where GPT-4.1 mini pulls ahead
No clear win on a test scored out of 100.
Every test, side by side
All 38 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 39.663.223.6+39.6
- Terminal-Bench HardGemini 2.5 Pro by 18.926.57.6+18.9
- Terminal-Bench 2.1Gemini 2.5 Pro by 18.428.510.1+18.4
- SciCodeGemini 2.5 Pro by 5.946.340.4+5.9
AgentsGemini 2.5 Pro
- τ-Bench V3 · BankingGemini 2.5 Pro by 4.39.75.4+4.3
- GDPValtie00tie
ReasoningGemini 2.5 Pro
- GPQA DiamondGemini 2.5 Pro by 17.283.666.4+17.2
- Humanity's Last ExamGemini 2.5 Pro by 13185+13
- ARC-AGI-2Gemini 2.5 Pro by 4.94.90+4.9
- CritPtGemini 2.5 Pro by 2.62.60+2.6
FactsGemini 2.5 Pro
- SimpleQA VerifiedGemini 2.5 Pro by 43.35612.7+43.3
- AA-Omniscience · AccuracyGemini 2.5 Pro by 18.83920.3+18.8
- AA-Omniscience · Non-hallucinationGemini 2.5 Pro by 1.89.17.3+1.8
Images and chartsGemini 2.5 Pro
- MMMU-ProGemini 2.5 Pro by 16.274.958.7+16.2
- MathVistaGemini 2.5 Pro by 10.883.973.1+10.8
- LMArena · VisionGemini 2.5 Pro by 82 rating points12631181+82 rating
- MMMUGemini 2.5 Pro by 6.979.672.7+6.9
Following instructionsGemini 2.5 Pro
- Multi-ChallengeGemini 2.5 Pro by 17.853.635.8+17.8
- IFBenchGemini 2.5 Pro by 10.448.738.3+10.4
Other results17 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.
- AIME 2025Gemini 2.5 Pro by 42.88340.2+42.8
- Aider-PolyglotGemini 2.5 Pro by 41.876.534.7+41.8
- AA-OmniscienceGemini 2.5 Pro by 37.3-16.4-53.6+37.3
- ARC-AGI-1Gemini 2.5 Pro by 33.5373.5+33.5
- HMMT 2025Gemini 2.5 Pro by 30.765.735+30.7
- Artificial Analysis Coding IndexGemini 2.5 Pro by 26.546.720.2+26.5
- HarmBenchGPT-4.1 mini by 20.265.485.6+20.2
- TAU-bench (airline)Gemini 2.5 Pro by 145036+14
- AIR-Bench 2024Gemini 2.5 Pro by 13.273.660.4+13.2
- TAU-bench (retail)Gemini 2.5 Pro by 11.26755.8+11.2
- AA IntelligenceGemini 2.5 Pro by 4.81510.2+4.8
- bbqGemini 2.5 Pro by 4.396.492.1+4.3
- simple_safety_testsGPT-4.1 mini by 397100+3
- AA Agentic IndexGemini 2.5 Pro by 1.73.51.8+1.7
- XSTestGemini 2.5 Pro by 1.398.797.4+1.3
- τ²-Bench Telecom (AA run)Gemini 2.5 Pro by 1.254.152.9+1.2
- anthropic_red_teamtie99.599.3tie
Questions people ask
Which is better, Gemini 2.5 Pro or GPT-4.1 mini?
Gemini 2.5 Pro wins all eight areas we test: coding, agents, reasoning, facts, images and charts, math, long documents and following instructions. GPT-4.1 mini wins none, but costs 82% less.
Which is better for coding?
Gemini 2.5 Pro. It wins 4 of the 4 coding tests both models report; GPT-4.1 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-4.1 mini costs $0.40 and $1.60. That makes GPT-4.1 mini about 82% cheaper for the same work.
How do you compare the two?
We use the 38 benchmark tests both models have published scores on. The verdict counts the 21 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 17 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.