Model comparison
GPT-5.5 Pro vs MiMo-V2.5
Head-to-head evidence from 0 shared benchmark results across 0 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: GPT-5.5 Pro #38 (Estimated); MiMo-V2.5 #62 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. GPT-5.5 Pro and MiMo-V2.5 share 0 comparable benchmark results. 1 of 8 categories are comparable. 7 results are unique to GPT-5.5 Pro; 11 to MiMo-V2.5.
Updated July 22, 2026- Shared results
- 0
- GPT-5.5 Pro only
- 7
- MiMo-V2.5 only
- 11
- Comparable categories
- 1 / 8
Pick GPT-5.5 Pro if you want the stronger benchmark profile. MiMo-V2.5 only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Confidence note. This is a partial-evidence comparison with 0 shared benchmark results across 0 evidence categories; 1 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
GPT-5.5 Pro is clearly ahead on the BenchAlign aggregate, 63.69 to 58.62. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
GPT-5.5 Pro's sharpest advantage is in agentic, where it averages 90.1 against 65.8.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | GPT-5.5 Pro | MiMo-V2.5 | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | GPT-5.5 Pro$30 input / $180 output | MiMo-V2.5Not available | A complete price comparison is not available. |
| Generation speedtokens per second | GPT-5.5 ProNot available | MiMo-V2.5Not available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | GPT-5.5 ProNot available | MiMo-V2.5Not available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | GPT-5.5 Pro1M | MiMo-V2.51M | Listed context windows are equal. |
Benchmark Deep Dive
AgenticGPT-5.5 Pro wins6 benchmarks
Coding2 benchmarks
Reasoning1 benchmarks
| Benchmark | GPT-5.5 Pro | MiMo-V2.5 | Result |
|---|---|---|---|
| CritPtSource | 30.6% | — | Not comparable |
Knowledge2 benchmarks
Math3 benchmarks
Frequently Asked Questions (2)
Which is better, GPT-5.5 Pro or MiMo-V2.5?
GPT-5.5 Pro is ahead on BenchLM's BenchAlign leaderboard, 63.69 to 58.62.
Which is better for agentic tasks, GPT-5.5 Pro or MiMo-V2.5?
GPT-5.5 Pro has the edge for agentic tasks in this comparison, averaging 90.1 versus 65.8. MiMo-V2.5 stays close enough that the answer can still flip depending on your workload.
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