Model decision surface
Compare AI models
Start with Claude Haiku 4.5 and LongCat Flash Chat, 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
Claude Haiku 4.5 vs LongCat Flash Chat
Live dataset updated 9/15/2026, 7:09:11 PM UTC
Open 1200×630 evidence receipt| Field | Claude Haiku 4.5 Anthropic | LongCat Flash Chat Meituan Longcat |
|---|---|---|
| ModelCap position | #66 | #76 |
| Index score | 55.5 | 53.9 |
| Evidence | Measured3 public benchmark observations across 3 boards | Estimatedglobal-corpus-prior over 176 held-out anchors (9%); launch card against 4 resolved peers on 12 rows (91%); exceeds every named peer on 2 of 12 rows; optimism haircut 0 from cross-lab-probe; shrunk 0.1 toward the measured corpus |
| Input / 1M | $1.00 | Unavailable |
| Output / 1M | $5.00 | Unavailable |
| Pricing status | fresh | unavailable |
| Context | 200K | — |
| Providers | 4 | 0 |
| Weight access | API only | Open weights |
Decision facts
- Claude Haiku 4.5 is #66; LongCat Flash Chat is #76 on the same current language board.
- Index scores are 55.5 for Claude Haiku 4.5 and 53.9 for LongCat Flash Chat. Their published uncertainty intervals overlap, so the rank difference alone does not establish a reliable capability advantage for your workload.
- Evidence differs: Claude Haiku 4.5 is Measured; LongCat Flash Chat is Estimated.
- Weight access differs: Claude Haiku 4.5 is none; LongCat Flash Chat is open.
- ModelCap currently lists 4 providers for Claude Haiku 4.5 and 0 for LongCat Flash Chat.
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.