Gemini 2.5 Pro vs Mistral Small 4
Wins 5 of 7 areas
Coding · Agents · Reasoning · Images and charts · Long documents
Wins 0 of 7 areas
—
Gemini 2.5 Pro is the stronger all-rounder.Mistral Small 4 is cheaper.
Scores updated · 21 tests both models report · How we compare
Where each one wins
Tests won in each of the seven 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
- AgentsCarrying out multi-step tasks on its own10Gemini 2.5 Pro1 of 3 tests · 2 ties
- Images and chartsUnderstanding pictures, charts and video10Gemini 2.5 Pro1 of 1 test
- Long documentsFinding answers in very long texts10Gemini 2.5 Pro1 of 1 test
- FactsGetting facts right instead of making them up11Even1 each
- Following instructionsDoing exactly what it is asked00Even0 each · 1 tie
Images and charts, 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.
Mistral Small 4 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
- Reasons across sets of long documentsAA-LCR+19.3points ahead
- Harder college exam questions with imagesMMMU-Pro+18.1points ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+17.4points ahead
Where Mistral Small 4 pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+24.4points ahead
Every test, side by side
All 21 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 7.546.338.8+7.5
- Terminal-Bench 2.1Gemini 2.5 Pro by 7.528.521+7.5
AgentsGemini 2.5 Pro
- τ-Bench V3 · BankingGemini 2.5 Pro by 4.89.74.9+4.8
- GDPValtie00tie
- Terminal-Bench 4.0tie00tie
ReasoningGemini 2.5 Pro
- Humanity's Last ExamGemini 2.5 Pro by 8.1189.9+8.1
- GPQA DiamondGemini 2.5 Pro by 6.783.676.9+6.7
- CritPtGemini 2.5 Pro by 2.32.60.3+2.3
FactsEven
- AA-Omniscience · Non-hallucinationMistral Small 4 by 24.49.133.5+24.4
- AA-Omniscience · AccuracyGemini 2.5 Pro by 17.43921.7+17.4
Images and chartsGemini 2.5 Pro
- MMMU-ProGemini 2.5 Pro by 18.174.956.8+18.1
Other results7 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.
- Artificial Analysis Coding IndexGemini 2.5 Pro by 20.146.726.6+20.1
- AA-OmniscienceGemini 2.5 Pro by 14.1-16.4-30.4+14.1
- τ²-Bench Telecom (AA run)Gemini 2.5 Pro by 12.954.141.2+12.9
- LiveCodeBenchGemini 2.5 Pro by 10.674.263.6+10.6
- MMLU-ProGemini 2.5 Pro by 88678+8
- AA IntelligenceGemini 2.5 Pro by 3.71511.3+3.7
- AIME 2025tie8383.8tie
Questions people ask
Which is better, Gemini 2.5 Pro or Mistral Small 4?
Gemini 2.5 Pro wins five of the seven areas where both have results: coding, agents, reasoning, images and charts and long documents. Mistral Small 4 wins none, but costs 93% less. They are level on facts and following instructions.
Which is better for coding?
Gemini 2.5 Pro. It wins 3 of the 3 coding tests both models report; Mistral Small 4 wins none.
Which is cheaper?
Gemini 2.5 Pro costs $1.25 per million input tokens and $10.00 per million output tokens; Mistral Small 4 costs $0.15 and $0.60. That makes Mistral Small 4 about 93% cheaper for the same work.
How do you compare the two?
We use the 21 benchmark tests both models have published scores on. The verdict counts the 14 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 7 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.