Gemini 3.1 Pro vs MiMo V2.5
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 3.1 Pro is the stronger all-rounder.MiMo V2.5 is cheaper.
Scores updated · 37 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 software51Gemini 3.1 Pro5 of 7 tests · 1 tie
- ReasoningHard problems that need careful thinking30Gemini 3.1 Pro3 of 3 tests
- Images and chartsUnderstanding pictures, charts and video31Gemini 3.1 Pro3 of 4 tests
- MathCompetition and research-level math20Gemini 3.1 Pro2 of 2 tests
- AgentsCarrying out multi-step tasks on its own21Gemini 3.1 Pro2 of 3 tests
- FactsGetting facts right instead of making them up21Gemini 3.1 Pro2 of 3 tests
- Long documentsFinding answers in very long texts10Gemini 3.1 Pro1 of 1 test
- Following instructionsDoing exactly what it is asked10Gemini 3.1 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.
MiMo V2.5 costs 98% less for the same work.
The biggest differences
The three tests each model wins by the widest margin. Scores are out of 100.
Where Gemini 3.1 Pro pulls ahead
- Short factual questions, answered correctlySimpleQA Verified+57.4points ahead
- Recent programming contest problemsLiveCodeBench v6+56.2points ahead
- Fixes real GitHub issues in Python projectsSWE-bench Verified+49.8points ahead
Where MiMo V2.5 pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+19points ahead
- Real work tasks from 44 professionsGDPVal+10.3points ahead
- Long, multi-file coding tasks in real codebasesSWE-bench Pro+1.9points ahead
Every test, side by side
All 37 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingGemini 3.1 Pro
- LiveCodeBench v6Gemini 3.1 Pro by 56.291.735.5+56.2
- SWE-bench VerifiedGemini 3.1 Pro by 49.880.630.8+49.8
- SciCodeGemini 3.1 Pro by 14.858.743.9+14.8
- Terminal-Bench HardGemini 3.1 Pro by 12.153.841.7+12.1
- Terminal-Bench 2.1Gemini 3.1 Pro by 10.173.863.7+10.1
- SWE-bench ProMiMo V2.5 by 1.954.256.1+1.9
- LMArena · WebDevtie14461438tie
AgentsGemini 3.1 Pro
- τ-Bench V3 · BankingGemini 3.1 Pro by 12.721.48.7+12.7
- GDPValMiMo V2.5 by 10.314.624.9+10.3
- Terminal-Bench 4.0Gemini 3.1 Pro by 440+4
ReasoningGemini 3.1 Pro
- Humanity's Last ExamGemini 3.1 Pro by 19.84727.2+19.8
- CritPtGemini 3.1 Pro by 1417.73.7+14
- GPQA DiamondGemini 3.1 Pro by 9.294.184.9+9.2
FactsGemini 3.1 Pro
- SimpleQA VerifiedGemini 3.1 Pro by 57.473.516.1+57.4
- AA-Omniscience · AccuracyGemini 3.1 Pro by 38.154.916.8+38.1
- AA-Omniscience · Non-hallucinationMiMo V2.5 by 1949.168.1+19
Images and chartsGemini 3.1 Pro
- MMMU-ProGemini 3.1 Pro by 782.475.4+7
- LMArena · VisionGemini 3.1 Pro by 48 rating points12961248+48 rating
- CharXiv (RQ)Gemini 3.1 Pro by 2.383.381+2.3
- Video-MMEMiMo V2.5 by 186.787.7+1
MathGemini 3.1 Pro
- HMMT Feb. 2026Gemini 3.1 Pro by 12.194.782.6+12.1
- AIME 2026Gemini 3.1 Pro by 4.798.393.6+4.7
Following instructionsGemini 3.1 Pro
- IFBenchGemini 3.1 Pro by 1077.167.1+10
Other results13 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 3.1 Pro by 41.731.9-9.8+41.7
- GDPval-AA v2MiMo V2.5 by 303 rating points9621265+303 rating
- MMLU-ProGemini 3.1 Pro by 25.29165.8+25.2
- HLE (with tools)Gemini 3.1 Pro by 11.451.440+11.4
- AA IntelligenceGemini 3.1 Pro by 7.929.721.8+7.9
- τ³-Bench BankingGemini 3.1 Pro by 7.516.59+7.5
- Finance Agent v2Gemini 3.1 Pro by 6.34336.7+6.3
- MMLUGemini 3.1 Pro by 6.392.686.3+6.3
- τ²-Bench Telecom (AA run)Gemini 3.1 Pro by 595.690.6+5
- Terminal-Bench 2.0Gemini 3.1 Pro by 2.768.565.8+2.7
- SWEBench Pro PublicMiMo V2.5 by 1.954.256.1+1.9
- VideoHolmesGemini 3.1 Pro by 1.965.964+1.9
- StrongREJECTMiMo V2.5 by 1.39899.3+1.3
Questions people ask
Which is better, Gemini 3.1 Pro or MiMo V2.5?
Gemini 3.1 Pro wins all eight areas we test: coding, agents, reasoning, facts, images and charts, math, long documents and following instructions. MiMo V2.5 wins none, but costs 98% less.
Which is better for coding?
Gemini 3.1 Pro. It wins 5 of the 7 coding tests both models report; MiMo V2.5 wins 1, and 1 is a tie.
Which is cheaper?
Gemini 3.1 Pro costs $2.00 per million input tokens and $12.00 per million output tokens; MiMo V2.5 costs $0.11 and $0.22. That makes MiMo V2.5 about 98% cheaper for the same work.
How do you compare the two?
We use the 37 benchmark tests both models have published scores on. The verdict counts the 24 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 13 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.