Model decision surface
Compare AI models
Start with LongCat Flash Thinking 2601 and GPT-5.5 Pro, or choose any two current ranked language models. Compare capability evidence, price, context, provider availability, and weight access without pretending one field decides every use case.
Current public data
LongCat Flash Thinking 2601 vs GPT-5.5 Pro
Live dataset updated 9/14/2026, 10:53:04 PM UTC
Open 1200×630 evidence receipt| Field | LongCat Flash Thinking 2601 Meituan Longcat | GPT-5.5 Pro OpenAI |
|---|---|---|
| ModelCap position | #50 | #53 |
| Index score | 60.1 | 58.2 |
| Evidence | Estimatedglobal-corpus-prior over 186 held-out anchors (12%); launch card against 4 resolved peers on 3 rows (88%); exceeds every named peer on 1 of 3 rows; optimism haircut 0.15 from cross-lab-probe; shrunk 1.1 toward the measured corpus | Measuredpublisher-corpus-prior over 186 held-out anchors (61%); 1 specialist-board observation at 2.1% support (39%); shrunk 14.5 toward the measured corpus |
| Input / 1M | Unavailable | $30.00 |
| Output / 1M | Unavailable | $180 |
| Pricing status | unavailable | fresh |
| Context | — | 1M |
| Providers | 0 | 1 |
| Weight access | Open weights | API only |
Decision facts
- LongCat Flash Thinking 2601 is #50; GPT-5.5 Pro is #53 on the same current language board.
- Index scores are 60.1 for LongCat Flash Thinking 2601 and 58.2 for GPT-5.5 Pro. Their published uncertainty intervals overlap, so the rank difference alone does not establish a reliable capability advantage for your workload.
- Evidence differs: LongCat Flash Thinking 2601 is Estimated; GPT-5.5 Pro is Measured.
- Weight access differs: LongCat Flash Thinking 2601 is open; GPT-5.5 Pro is none.
- ModelCap currently lists 0 providers for LongCat Flash Thinking 2601 and 1 for GPT-5.5 Pro.
These are separate published fields, not a synthetic winner. ModelCap does not collapse price, access, context, and capability evidence into a hidden recommendation score.
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Each comparison page is a permanent, shareable URL with the same live figures as this tool: ModelCap Index position, API pricing, context window, provider count, weight access and every shared benchmark board.