LongCat-Flash-Chat
by Meituan
· LongCat family · released Sep 1, 2025
Open weights
Active
Meituan's first open-source LLM, a 560B-parameter mixture-of-experts model with ~27B active parameters released under MIT for chat and agent tasks.
No pricing recorded for this model yet.
Specifications
| Model type | Text LLM |
|---|---|
| Architecture | MoE |
| Parameters | 560 (27 active) |
| Context window | 131.1K tokens |
| Max output | Not disclosed tokens |
| Knowledge cutoff | Not disclosed |
| License | MIT License |
| Modalities | Text input Text output |
| Tags | Tool use |
| End of life | Not disclosed |
| Weights | Download |
| Last verified | Not disclosed |