Gemini 2.5 Pro vs Grok 3 Mini Reasoning
Wins 5 of 6 areas
Coding · Reasoning · Facts · Long documents · Following instructions
Wins 0 of 6 areas
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Gemini 2.5 Pro is the stronger all-rounder.Grok 3 Mini Reasoning is cheaper.
Scores updated · 23 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.
- ReasoningHard problems that need careful thinking30Gemini 2.5 Pro3 of 3 tests
- CodingWriting and fixing software20Gemini 2.5 Pro2 of 2 tests
- FactsGetting facts right instead of making them up21Gemini 2.5 Pro2 of 3 tests
- Long documentsFinding answers in very long texts10Gemini 2.5 Pro1 of 1 test
- Following instructionsDoing exactly what it is asked10Gemini 2.5 Pro1 of 1 test
- AgentsCarrying out multi-step tasks on its own00Even0 each · 1 tie
Agents, long documents 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.
Grok 3 Mini Reasoning 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
- Short factual questions, answered correctlySimpleQA Verified+34.9points ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+24points ahead
- Reasons across sets of long documentsAA-LCR+13.7points ahead
Where Grok 3 Mini Reasoning pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+65.1points ahead
Every test, side by side
All 23 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingGemini 2.5 Pro
- Terminal-Bench HardGemini 2.5 Pro by 9.126.517.4+9.1
- SciCodeGemini 2.5 Pro by 5.746.340.6+5.7
ReasoningGemini 2.5 Pro
- Humanity's Last ExamGemini 2.5 Pro by 71811+7
- GPQA DiamondGemini 2.5 Pro by 4.583.679.1+4.5
- CritPtGemini 2.5 Pro by 22.60.6+2
FactsGemini 2.5 Pro
- AA-Omniscience · Non-hallucinationGrok 3 Mini Reasoning by 65.19.174.2+65.1
- SimpleQA VerifiedGemini 2.5 Pro by 34.95621.1+34.9
- AA-Omniscience · AccuracyGemini 2.5 Pro by 243915.1+24
Following instructionsGemini 2.5 Pro
- IFBenchGemini 2.5 Pro by 2.848.745.9+2.8
Other results12 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.
- τ²-Bench Telecom (AA run)Grok 3 Mini Reasoning by 36.354.190.4+36.3
- AA Agentic IndexGrok 3 Mini Reasoning by 27.73.531.2+27.7
- Artificial Analysis Coding IndexGemini 2.5 Pro by 21.546.725.2+21.5
- ARC-AGI-1Gemini 2.5 Pro by 20.53716.5+20.5
- AA-OmniscienceGrok 3 Mini Reasoning by 9.5-16.4-6.8+9.5
- HMMT 2025Grok 3 Mini Reasoning by 8.365.774+8.3
- livecodebench_hardGemini 2.5 Pro by 8.359.451.1+8.3
- AIME 2025Grok 3 Mini Reasoning by 7.88390.8+7.8
- LiveCodeBenchGrok 3 Mini Reasoning by 6.274.280.4+6.2
- livecodebench_mediumGemini 2.5 Pro by 4.790.685.9+4.7
- livecodebench_easytie98.898.1tie
- AA Intelligencetie1514.6tie
Questions people ask
Which is better, Gemini 2.5 Pro or Grok 3 Mini Reasoning?
Gemini 2.5 Pro wins five of the six areas where both have results: coding, reasoning, facts, long documents and following instructions. Grok 3 Mini Reasoning wins none, but costs 93% less. They are level on agents.
Which is better for coding?
Gemini 2.5 Pro. It wins 2 of the 2 coding tests both models report; Grok 3 Mini Reasoning 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 Mini Reasoning costs $0.30 and $0.50. That makes Grok 3 Mini Reasoning about 93% cheaper for the same work.
How do you compare the two?
We use the 23 benchmark tests both models have published scores on. The verdict counts the 11 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 12 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.