Kimi K2.5 vs MiMo V2.5
Wins 5 of 8 areas
Reasoning · Facts · Math · Long documents · Following instructions
Wins 0 of 8 areas
—
Kimi K2.5 is the stronger all-rounder.MiMo V2.5 is cheaper.
Scores updated · 33 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.
- ReasoningHard problems that need careful thinking20Kimi K2.52 of 3 tests · 1 tie
- MathCompetition and research-level math20Kimi K2.52 of 2 tests
- FactsGetting facts right instead of making them up21Kimi K2.52 of 3 tests
- Long documentsFinding answers in very long texts10Kimi K2.51 of 1 test
- Following instructionsDoing exactly what it is asked10Kimi K2.51 of 1 test
- CodingWriting and fixing software33Even3 each · 1 tie
- AgentsCarrying out multi-step tasks on its own11Even1 each
- Images and chartsUnderstanding pictures, charts and video11Even1 each · 2 ties
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 91% less for the same work.
The biggest differences
The three tests each model wins by the widest margin. Scores are out of 100.
Where Kimi K2.5 pulls ahead
- Recent programming contest problemsLiveCodeBench v6+49.5points ahead
- Fixes real GitHub issues in Python projectsSWE-bench Verified+46points ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+18.4points ahead
Where MiMo V2.5 pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+33.8points ahead
- Command-line tasks in a real terminalTerminal-Bench 2.1+18points ahead
- Real work tasks from 44 professionsGDPVal+7.9points ahead
Every test, side by side
All 33 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingEven
- LiveCodeBench v6Kimi K2.5 by 49.58535.5+49.5
- SWE-bench VerifiedKimi K2.5 by 4676.830.8+46
- Terminal-Bench 2.1MiMo V2.5 by 1845.763.7+18
- Terminal-Bench HardMiMo V2.5 by 6.934.841.7+6.9
- SWE-bench ProMiMo V2.5 by 5.450.756.1+5.4
- SciCodeKimi K2.5 by 5.14943.9+5.1
- LMArena · WebDevtie14361438tie
AgentsEven
- GDPValMiMo V2.5 by 7.91724.9+7.9
- τ-Bench V3 · BankingKimi K2.5 by 5.514.28.7+5.5
ReasoningKimi K2.5
- Humanity's Last ExamKimi K2.5 by 3.530.727.2+3.5
- GPQA DiamondKimi K2.5 by 387.984.9+3
- CritPttie3.13.7tie
FactsKimi K2.5
- AA-Omniscience · Non-hallucinationMiMo V2.5 by 33.834.368.1+33.8
- AA-Omniscience · AccuracyKimi K2.5 by 18.435.216.8+18.4
- SimpleQA VerifiedKimi K2.5 by 18.234.316.1+18.2
Images and chartsEven
- CharXiv (RQ)MiMo V2.5 by 3.577.581+3.5
- LMArena · VisionKimi K2.5 by 21 rating points12691248+21 rating
- Video-MMEtie87.487.7tie
- MMMU-Protie75.475.4tie
MathKimi K2.5
- HMMT Feb. 2026Kimi K2.5 by 4.587.182.6+4.5
- AIME 2026Kimi K2.5 by 2.295.893.6+2.2
Following instructionsKimi K2.5
- IFBenchKimi K2.5 by 3.170.267.1+3.1
Other results10 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.
- GDPval-AA v2MiMo V2.5 by 256 rating points10091265+256 rating
- MMLU-ProKimi K2.5 by 21.387.165.8+21.3
- Terminal-Bench 2.0MiMo V2.5 by 1550.865.8+15
- HLE (with tools)Kimi K2.5 by 10.250.240+10.2
- SWEBench Pro PublicMiMo V2.5 by 5.450.756.1+5.4
- τ²-Bench Telecom (AA run)Kimi K2.5 by 5.395.990.6+5.3
- τ³-Bench BankingKimi K2.5 by 5.214.29+5.2
- AA-OmniscienceKimi K2.5 by 2.5-7.3-9.8+2.5
- AA IntelligenceKimi K2.5 by 1.723.521.8+1.7
- StrongREJECTtie99.599.3tie
Questions people ask
Which is better, Kimi K2.5 or MiMo V2.5?
Kimi K2.5 wins five of the eight areas we test: reasoning, facts, math, long documents and following instructions. MiMo V2.5 wins none, but costs 91% less. They are level on coding, agents and images and charts.
Which is better for coding?
Neither. They win 3 coding tests each of the 7 both models report, and 1 is a tie.
Which is cheaper?
Kimi K2.5 costs $0.60 per million input tokens and $3.00 per million output tokens; MiMo V2.5 costs $0.11 and $0.22. That makes MiMo V2.5 about 91% cheaper for the same work.
How do you compare the two?
We use the 33 benchmark tests both models have published scores on. The verdict counts the 23 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 10 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.