<!-- Markdown version for AI agents. Canonical HTML: https://www.tandiu.cn/en/pricing . Data is updated daily; see https://www.tandiu.cn/llms.txt -->
PRICING

# TANDIU Pro

API access, price history and a commercial license for TANDIU data. The free site stays free.
2026-10-17

### Free

$0
- All website pages and charts
- Open JSON / CSV feeds (latest snapshots)
- Remote MCP server, 60 requests / min, no sign-up
- View, quote and cite with attribution, including in AI answers
[Use the free data](https://www.tandiu.cn/en/api#free)

### Pro

$4.99 / month billed monthly, cancel anytime
- REST API with an API key (6 endpoints, see [API docs](https://www.tandiu.cn/en/api))
- Daily official LLM list-price history per model since July 2026, USD and RMB, with source URLs
- MCP with your key: 600 requests / min and the price-history tool
- Commercial-use license for TANDIU-compiled data ([terms](https://www.tandiu.cn/en/terms#data-license))
Payments are processed by Paddle, our Merchant of Record. Taxes may apply at checkout.
Not available to customers in mainland China; orders with a mainland China billing address are cancelled and fully refunded.
SCOPE

## What Pro covers

Pro licenses data that TANDIU compiles or produces itself:
- Official LLM API list prices and their daily history, the TANDIU price index and recorded price changes
- Cloud agent comparison, including TANDIU's own tests (identity stability, egress IP, cloud computer form)
- Token budget per job role and the coding PC ladder

Not included in Pro and not licensed for resale: third-party benchmark scores (Artificial Analysis, LiveBench, Epoch AI), GPU market and rental prices, public procurement data and AI funding data. These stay free to view on the website with their original sources.
FAQ

## FAQ

**Who can buy Pro?** Businesses and individuals outside mainland China. Pro is a self-serve subscription delivered by API key; there is no consulting or custom work.

**How do I get my key?** Right after checkout you are taken to a page that shows your API key. Keep it secret; you can rotate it from the same link within 7 days, or email us later.

**How do I cancel?** Use the subscription link in your Paddle receipt email, or email [contact@tandiu.cn](mailto:contact@tandiu.cn). Your key keeps working until the end of the paid period.

**Refunds?** Full refund within 14 days of a payment, see the [refund policy](https://www.tandiu.cn/en/refund).

**Will the free data change?** No. Pages, open feeds and the anonymous MCP server stay free.