LongCat-Flash-Chat vs Qwen3.5-397B-A17B: Specs & Benchmark Comparison
| Characteristic | LongCat-Flash-Chat | Qwen3.5-397B-A17B |
|---|---|---|
| Company | Meituan | Alibaba |
| Release Date | August 28, 2025 | February 15, 2026 |
| Parameters | 560B | 397B |
| Multimodal | No | Yes |
| Average Score | 0.9 | 0.9 |
| Benchmarks | ||
| IFEval | 0.9 | 0.9 |
Visual Benchmark Comparison
LongCat-Flash-Chat
Qwen3.5-397B-A17B
IFEval0.9 vs 0.9
0.9
0.9
Verdict
Qwen3.5-397B-A17B leads in 1 out of 2 comparison categories.
Overall Performance
Both models show comparable average scores: LongCat-Flash-Chat — 0.9, Qwen3.5-397B-A17B — 0.9.
Recency
Qwen3.5-397B-A17B is newer: released 2/15/2026 vs 8/28/2025.
More About These Models
Related Comparisons
The LongCat-Flash-Chat and Qwen3.5-397B-A17B comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the LongCat-Flash-Chat or Qwen3.5-397B-A17B page. See also the complete list of AI model comparisons.