dsh-deepseek-cny-cost

See what the chat you are reading has cost, in CNY, inside the DeepSeek Harness Web GUI.

A small badge sits under the composer next to the session statistics:

≈¥0.0123

• The number is the running total for the chat you are looking at; switching chats switches the number, and it grows as the chat works;
• Hovering (or a screen reader) reveals the breakdown: uncached input, cache-hit input, and output tokens, each with its own cost;
• It renders only while the selected provider is a DeepSeek official route, because third-party relays are not billed at DeepSeek's peak / off-peak rates.

How it prices

It reads two projections the session already exposes and issues no requests of its own:

Data	Source
Token usage	tokenUsage (uncachedInputTokens, cacheReadTokens, cacheWriteTokens, outputTokens)
Current model	modelSelection

Prices come from the official Models & Pricing page (checked 2026-10), in CNY per million tokens:

Model	Cache hit	Cache miss	Output
deepseek-flash	0.04	2	8
deepseek-v4-pro	0.30	9	27

Those are peak rates. Off-peak is half of peak; peak is Beijing time Monday–Friday (excluding Chinese statutory holidays) 09:00–12:00 and 14:00–18:00, and every other hour — weekends and holidays included — is off-peak.

• Cache writes are billed at the cache-miss input rate, matching DeepSeek's rule that there is no separate write fee;
• Legacy names deepseek-v4-flash and deepseek-v4-flash-vision-exp are priced as Flash, per the official note;
• An unknown model name hides the badge instead of inventing a price.

Known limits

• An estimate, not an invoice. It excludes per-request Search / Fetch charges; the official bill wins.
• Chats that switched models are priced with the currently selected model, because tokenUsage is a whole-chat total with no per-model split.
• Holidays: the built-in table covers 2026. A year without an entry falls back to weekends only, so its holiday weekdays would be priced as peak.
• Shown for DeepSeek official providers (deepseek-official, deepseek-account, or any new provider id starting with deepseek).

Install

Desktop: Plugins → Add plugin, enter the absolute path of this directory (the installer records a link: dependency), then install and enable. Restart DSH completely if it asks, then refresh the page.

Command line, for a non-desktop profile:

dsh plugin --profile web add /absolute/path/to/dsh-deepseek-cny-cost

Develop

node --check client.js
node tools/test-cny-cost.mjs   # pricing, peak windows, formatting, slot registration, component behavior

client.js is the whole browser half: a lazy factory registered through window.__ModuleLoader__.load({ id, factory }), with React supplied by the host module table. To make an edit take effect, remove the bundle and install it again from the same source (ambiguous-install otherwise).

License

MIT.