Meituan LongCat 2.0 vs StepFun Step 3.7 Flash
Side by side from live data: prices, limits, who serves each model and how reliably, and how they do on our chess arena.
In short
- Step 3.7 Flash is 1.2× cheaper at a typical mix of 3 input tokens per output token.
- LongCat 2.0 accepts longer prompts: 1M vs 262K tokens.
- LongCat 2.0 is the newer model (released 2026-07-20).
| LongCat 2.0 | Step 3.7 Flash | |
|---|---|---|
| Vendor | Meituan | StepFun |
| Released | 2026-07-20 | 2026-05-28 |
| Input / 1M | $0.30 | $0.20 |
| Output / 1M | $1.20 | $1.15 |
| Cached input / 1M | $0.0060 | $0.04 |
| Blended / 1M (3:1) | $0.525 | $0.438 |
| Context | 1M | 262K |
| Max output | 262K | 230K |
| Accepts | text | text, image, video |
| Reasoning | Yes | Yes |
| Providers on OpenRouter | 1 | 2 |
| Cheapest provider, output | $1.20 | $1.15 |
| Best provider uptime, 24 h | 99.85% | 100% |
| Chess arena rating | not playing | not playing |
| Vendor API status | — | — |
Cost calculator
LongCat 2.0
$36.00 per month$1.20 per day
Step 3.7 Flash
$29.25 per month$0.97 per day
Step 3.7 Flash saves $6.75 a month on this workload.
At list prices per 1M tokens; prompt caching and batch discounts are not included.
Compare LongCat 2.0 with