MiMo V2.6 Pro vs Claude Opus 5
Wins 1 of 6 areas
Long documents
Wins 3 of 6 areas
Agents · Reasoning · Images and charts
Claude Opus 5 wins more areas, narrowly.MiMo V2.6 Pro is cheaper and better at long documents.
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.
- AgentsCarrying out multi-step tasks on its own03Claude Opus 53 of 3 tests
- ReasoningHard problems that need careful thinking02Claude Opus 52 of 2 tests
- Images and chartsUnderstanding pictures, charts and video01Claude Opus 51 of 1 test
- Long documentsFinding answers in very long texts10MiMo V2.6 Pro1 of 1 test
- CodingWriting and fixing software11Even1 each · 1 tie
- FactsGetting facts right instead of making them up11Even1 each
Images and charts and long documents 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 V2.6 Pro costs 96% less for the same work.
The biggest differences
The three tests each model wins by the widest margin. Scores are out of 100.
Where Claude Opus 5 pulls ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+26points ahead
- Complex command-line tasks across many fieldsTerminal-Bench 4.0+14.2points ahead
- Very hard expert questions across many subjectsHumanity's Last Exam+5.5points ahead
Where MiMo V2.6 Pro pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+20.2points ahead
- Reasons across sets of long documentsAA-LCR+7points ahead
- Code for real scientific research problemsSciCode+4.5points 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.
CodingEven
- LMArena · WebDevClaude Opus 5 by 67 rating points16241691+67 rating
- SciCodeMiMo V2.6 Pro by 4.560.956.4+4.5
- Terminal-Bench 2.1tie89.989.1tie
AgentsClaude Opus 5
- Terminal-Bench 4.0Claude Opus 5 by 14.234.849+14.2
- GDPValClaude Opus 5 by 1.959.261.1+1.9
- OSWorld-VerifiedClaude Opus 5 by 1.48283.4+1.4
ReasoningClaude Opus 5
- Humanity's Last ExamClaude Opus 5 by 5.549.454.9+5.5
- CritPtClaude Opus 5 by 2.526.629.1+2.5
FactsEven
- AA-Omniscience · AccuracyClaude Opus 5 by 2634.960.9+26
- AA-Omniscience · Non-hallucinationMiMo V2.6 Pro by 20.259.439.2+20.2
Images and chartsClaude Opus 5
- LMArena · VisionClaude Opus 5 by 51 rating points12661317+51 rating
Other results11 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.
- GDP (Surge AI)Claude Opus 5 by 66.319.285.5+66.3
- Program BenchClaude Opus 5 by 58.926.585.4+58.9
- AA-OmniscienceClaude Opus 5 by 28.78.437.1+28.7
- Terminal-Bench-Science 0.1Claude Opus 5 by 23.35.729+23.3
- Terminal-Bench 4.0Claude Opus 5 by 16.934.951.8+16.9
- AA IntelligenceClaude Opus 5 by 4.546.350.8+4.5
- JobBenchClaude Opus 5 by 3.76265.7+3.7
- Toolathlon VerifiedClaude Opus 5 by 3.776.980.6+3.7
- GDPval-AA 2.1Claude Opus 5 by 35 rating points16731708+35 rating
- DeepSWE 1.1MiMo V2.6 Pro by 3.171.968.8+3.1
- Agents' Last ExamMiMo V2.6 Pro by 331.628.6+3
Questions people ask
Which is better, MiMo V2.6 Pro or Claude Opus 5?
Claude Opus 5 wins three of the six areas where both have results: agents, reasoning and images and charts. MiMo V2.6 Pro wins long documents, and costs 96% less. They are level on coding and facts.
Which is better for coding?
Neither. They win 1 coding test each of the 3 both models report, and 1 is a tie.
Which is cheaper?
MiMo V2.6 Pro costs $0.43 per million input tokens and $0.87 per million output tokens; Claude Opus 5 costs $5.00 and $25.00. That makes MiMo V2.6 Pro about 96% 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 12 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 11 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.