dsh-tidewatch

LIMITATIONS

已知限制

- **Prices are built in** and cover three eras (base price / first peak schedule / V4.1 Flash repricing); V4-Pro uses the official 2026-08-17 rates. Per footnote (2) on the official pricing page and the 2026-09-10 changelog, V4 Pro keeps being served after 2026-09-14 **with its billing method unchanged**, so pro always bills on its own rates and `V4_PRO_RETIRE_BOUNDARY` stays a sentinel pending an official date. **When the official prices change, update both `lib/pricing.js` (billing) and the `DISPLAY_PRICES` constant in `lib/client.js` (display) by hand, and keep the superseded tiers as another historical era.** - **Model names**: `deepseek-flash` is current (V4.1 Flash); the aliases `deepseek-v4-flash`, `deepseek-v4-flash-vision-exp` and `deepseek-v4.1-flash` are all billed at the current flash rate (see `MODEL_ALIASES`). - **Tier judgement is fixed to UTC** (the official definition); the window table is display-only localization. - **The CNY display is a fixed-rate conversion** (6.67 USD → CNY, matching the official CNY prices), not a live rate.