GPT-5.6 Sol vs MiMo V2.6 Pro
Wins 3 of 6 areas
Agents · Reasoning · Images and charts
Wins 2 of 6 areas
Coding · Long documents
GPT-5.6 Sol wins more areas, narrowly.MiMo V2.6 Pro is cheaper and better at coding.
Scores updated · 24 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 own21GPT-5.6 Sol2 of 3 tests
- ReasoningHard problems that need careful thinking10GPT-5.6 Sol1 of 2 tests · 1 tie
- Images and chartsUnderstanding pictures, charts and video10GPT-5.6 Sol1 of 1 test
- CodingWriting and fixing software02MiMo V2.6 Pro2 of 3 tests · 1 tie
- Long documentsFinding answers in very long texts01MiMo V2.6 Pro1 of 1 test
- 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 95% less for the same work.
The biggest differences
The three tests each model wins by the widest margin. Scores are out of 100.
Where GPT-5.6 Sol pulls ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+24.5points ahead
- Research-level physics problemsCritPt+5.7points ahead
- Complex command-line tasks across many fieldsTerminal-Bench 4.0+5.1points ahead
Where MiMo V2.6 Pro pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+51.6points ahead
- Code for real scientific research problemsSciCode+3.8points ahead
- Real work tasks from 44 professionsGDPVal+3.8points 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.
CodingMiMo V2.6 Pro
- SciCodeMiMo V2.6 Pro by 3.857.160.9+3.8
- Terminal-Bench 2.1MiMo V2.6 Pro by 1.98889.9+1.9
- LMArena · WebDevtie16151624tie
AgentsGPT-5.6 Sol
- Terminal-Bench 4.0GPT-5.6 Sol by 5.139.934.8+5.1
- GDPValMiMo V2.6 Pro by 3.855.459.2+3.8
- OSWorld-VerifiedGPT-5.6 Sol by 18382+1
ReasoningGPT-5.6 Sol
- CritPtGPT-5.6 Sol by 5.732.326.6+5.7
- Humanity's Last Examtie49.549.4tie
FactsEven
- AA-Omniscience · Non-hallucinationMiMo V2.6 Pro by 51.67.859.4+51.6
- AA-Omniscience · AccuracyGPT-5.6 Sol by 24.559.434.9+24.5
Images and chartsGPT-5.6 Sol
- LMArena · VisionGPT-5.6 Sol by 16 rating points12821266+16 rating
Other results12 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.
- Agents' Last ExamGPT-5.6 Sol by 21.152.731.6+21.1
- Terminal-Bench-Science 0.1GPT-5.6 Sol by 16.722.45.7+16.7
- JobBenchMiMo V2.6 Pro by 16.645.462+16.6
- AA-OmniscienceGPT-5.6 Sol by 13.6228.4+13.6
- GDP (Surge AI)GPT-5.6 Sol by 11.530.719.2+11.5
- CyberGymMiMo V2.6 Pro by 9.584.594+9.5
- GDPval-AA 2.1MiMo V2.6 Pro by 85 rating points15881673+85 rating
- Program BenchMiMo V2.6 Pro by 3.52326.5+3.5
- Terminal-Bench 4.0GPT-5.6 Sol by 2.437.334.9+2.4
- Toolathlon VerifiedMiMo V2.6 Pro by 274.976.9+2
- DeepSWE 1.1GPT-5.6 Sol by 1.17371.9+1.1
- AA Intelligencetie4746.3tie
Questions people ask
Which is better, GPT-5.6 Sol or MiMo V2.6 Pro?
GPT-5.6 Sol wins three of the six areas where both have results: agents, reasoning and images and charts. MiMo V2.6 Pro wins coding and long documents, and costs 95% less. They are level on facts.
Which is better for coding?
MiMo V2.6 Pro. It wins 2 of the 3 coding tests both models report; GPT-5.6 Sol wins none, and 1 is a tie.
Which is cheaper?
GPT-5.6 Sol costs $4.00 per million input tokens and $20.00 per million output tokens; MiMo V2.6 Pro costs $0.43 and $0.87. That makes MiMo V2.6 Pro about 95% 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 12 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 12 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.