Claude Opus 5.5 vs MiMo-V2.6-Pro
The two side by side on the four things we rate, using public benchmark data. Every score links to its source on each model's page.
| What we rate | Claude Opus 5.5 | MiMo-V2.6-Pro |
|---|---|---|
| Writing writing votes | Top tier 1st of 77 listed | Top tier 17th of 77 listed |
| Coding coding votes | Top tier 1st of 77 listed | Top tier 3rd of 77 listed |
| Maths hard maths problems | Top tier 3rd of 43 listed | Not enough data |
| Knowledge short factual questions | Top tier 4th of 43 listed | Not enough data |
Claude Opus 5.5 ranks higher on writing and coding. We cannot compare them on maths and knowledge, because one or both has not enough data. That is not a low score. A few places apart can sit inside the margin of error, so open the full comparison to see the ranges. We do not pick an overall winner: the better choice depends on the job.
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Claude Opus 5.5
By Anthropic. Full profile and sources
Good at
- Coding: Top tier (1st of 77 listed models)
- Knowledge: Top tier (4th of 43 listed models)
- Maths: Top tier (3rd of 43 listed models)
Not so good at
None of the four main ratings puts it behind the others. That is not evidence it has no weak spots.
- Closed weights: only its maker and chosen partners can offer it
Can't tell yet
- Fixing real software bugs: Not enough data
- Price not independently verified
Where it is one of our picks
- Writing and creating content: best-supported choice.
- Coding and building things: best-supported choice.
- Homework and maths: good-enough alternative.
- Business emails and everyday work: good-enough alternative.
- Research and checking facts: good-enough alternative.
Price: Price not independently verified
MiMo-V2.6-Pro
By Xiaomi. Full profile and sources
Good at
- Coding: Top tier (3rd of 77 listed models)
- Writing: Top tier (17th of 77 listed models)
- Open weights: its files are published, so more than one company can offer it
Not so good at
None of the four main ratings puts it behind the others. That is not evidence it has no weak spots.
- Relatively weaker on Longer conversations: 36th of 77, against 9th overall
Can't tell yet
- Hard maths problems: Not enough data
- School-competition maths: Not enough data
- Graduate-level science questions: Not enough data
- 3 more tests with no result
- Price not independently verified
Where it is one of our picks
- Writing and creating content: best open-weights option.
- Coding and building things: good-enough alternative.
Price: Price not independently verified
Ratings compare only the 77 models listed here, in quarters, best first. Not enough data means no result yet, never a low score. How we test.