LongCat-Flash-Chat: benchmark results
Meituan's open LongCat-Flash-Chat, a 560B sparse MoE (27B active) chat model (September 2025). Provider: Meituan. Released 2025-09-01. Access: Open.
Unified ELO 1565 ± 1, rank #383 of 1392 rated models, from 41 benchmark results.
Strongest benchmark results
| Benchmark | Score | Metric | Percentile |
|---|---|---|---|
| Chatbot Arena (Text - Coding) | 1473 | Arena Score | 73.2 |
| Chatbot Arena (Text - Math) | 1415 | Arena Score | 69 |
| Chatbot Arena (Text - English) | 1422 | Arena Score | 67 |
| OpenCompass Research - IFEval | 90.2 | Score (%) | 66 |
| Chatbot Arena (Text - Hard Prompts) | 1426 | Arena Score | 65.8 |
| BenchTable | 56.3 | Total Score (%) | 64.5 |
| Chatbot Arena (Text) | 1401 | Elo | 63.8 |
| Chatbot Arena (Text - Chinese) | 1435 | Arena Score | 63.6 |
| Chatbot Arena (Text - Instruction Following) | 1388 | Arena Score | 63.3 |
| LiveSecBench | 57.1 | Overall Score (%) | 61.9 |
| ZeroEval MATH-500 | 96.4 | MATH-500 Score | 61.3 |
| LLM Stats (CMMLU) | 84.34 | Score (%) | 60 |
Interactive version: theaggregate.ai/model?slug=longcat-flash-chat · How It Works · Data refreshed daily, snapshot 2026-09-05.