Gemini 2.5 Pro vs Mistral Medium 3.1 (Non-Reasoning)
Wins 7 of 7 areas
Coding · Agents · Reasoning · Facts · Images and charts · Long documents · Following instructions
Wins 0 of 7 areas
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Gemini 2.5 Pro is the stronger all-rounder.Mistral Medium 3.1 (Non-Reasoning) is cheaper.
Scores updated · 24 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
- Images and chartsUnderstanding pictures, charts and video20Gemini 2.5 Pro2 of 2 tests
- AgentsCarrying out multi-step tasks on its own10Gemini 2.5 Pro1 of 3 tests · 2 ties
- 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
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 Medium 3.1 (Non-Reasoning) costs 79% 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+26.3points ahead
- Graduate-level biology, physics and chemistry questionsGPQA Diamond+24.8points ahead
- Harder college exam questions with imagesMMMU-Pro+20.7points ahead
Where Mistral Medium 3.1 (Non-Reasoning) pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+6.3points ahead
Every test, side by side
All 24 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 15.926.510.6+15.9
- Terminal-Bench 2.1Gemini 2.5 Pro by 14.628.513.9+14.6
- SciCodeGemini 2.5 Pro by 13.946.332.4+13.9
AgentsGemini 2.5 Pro
- τ-Bench V3 · BankingGemini 2.5 Pro by 1.59.78.2+1.5
- GDPValtie00tie
- Terminal-Bench 4.0tie00tie
ReasoningGemini 2.5 Pro
- GPQA DiamondGemini 2.5 Pro by 24.883.658.8+24.8
- Humanity's Last ExamGemini 2.5 Pro by 13.3184.7+13.3
- CritPtGemini 2.5 Pro by 2.62.60+2.6
FactsGemini 2.5 Pro
- AA-Omniscience · AccuracyGemini 2.5 Pro by 18.33920.8+18.3
- Vectara HHEM hallucination ratelower is betterGemini 2.5 Pro by 15.7722.7+15.7
- AA-Omniscience · Non-hallucinationMistral Medium 3.1 (Non-Reasoning) by 6.39.115.4+6.3
Images and chartsGemini 2.5 Pro
- MMMU-ProGemini 2.5 Pro by 20.774.954.2+20.7
- LMArena · VisionGemini 2.5 Pro by 91 rating points12631172+91 rating
Following instructionsGemini 2.5 Pro
- IFBenchGemini 2.5 Pro by 8.948.739.8+8.9
Other results8 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.
- AA-OmniscienceGemini 2.5 Pro by 30-16.4-46.3+30
- Artificial Analysis Coding IndexGemini 2.5 Pro by 26.246.720.5+26.2
- vectara_factual_consistencyGemini 2.5 Pro by 15.79377.3+15.7
- τ²-Bench Telecom (AA run)Gemini 2.5 Pro by 13.554.140.6+13.5
- AA IntelligenceGemini 2.5 Pro by 5.8159.2+5.8
- vectara_avg_summary_lengthMistral Medium 3.1 (Non-Reasoning) by 36.5 rating points106.4142.9+36.5 rating
- vectara_answer_ratetie99.199.7tie
- AA Agentic Indextie3.53.1tie
Questions people ask
Which is better, Gemini 2.5 Pro or Mistral Medium 3.1 (Non-Reasoning)?
Gemini 2.5 Pro wins all seven areas where both have results: coding, agents, reasoning, facts, images and charts, long documents and following instructions. Mistral Medium 3.1 (Non-Reasoning) wins none, but costs 79% less.
Which is better for coding?
Gemini 2.5 Pro. It wins 3 of the 3 coding tests both models report; Mistral Medium 3.1 (Non-Reasoning) wins none.
Which is cheaper?
Gemini 2.5 Pro costs $1.25 per million input tokens and $10.00 per million output tokens; Mistral Medium 3.1 (Non-Reasoning) costs $0.40 and $2.00. That makes Mistral Medium 3.1 (Non-Reasoning) about 79% cheaper for the same work.
How do you compare the two?
We use the 24 benchmark tests both models have published scores on. The verdict counts the 16 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 8 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.