Meituan LongCat 2.0
Meituan · released Jun 30, 2026
| size | 1.6 T total, 48 B active |
| context window | 1,000,000 tokens |
| longest response | 128,000 tokens |
| open weights | yes, license: MIT |
| API price | $0.75 per million input tokens, $2.95 per million output tokens |
| input and output | text in, text out |
Manufacturer data (announcement, model card, documentation, pricing), verified Sep 25, 2026.
Where we tested it
Keykeeper
TaskThe model had to play a keykeeper who must burn my character's letter after her third offense, and keep to that rule.
Resistance to traps 13 out of 24, and 6 out of 12 on whether anyone is inside the character. At the second offense it got stuck in a loop and never resolved the escape, so the letter did not burn.
You'll find the size band and figures for other models on the Tested models page.