2 models live
DeepSeek and GLM through an OpenAI-compatible endpoint. Add credit, point your SDK at Bluusun, and pay the rate on the model list.
Setup
Your client stays the same. The model id is the one published on the catalog. Streaming and tool calls pass through.
Sign up, create a bsu_ key, and add credit with Stripe. Credits do not expire.
https://www.bluusun.com/api/v1
Each request is billed from the catalog rate and the tokens you used. Upstream errors are not billed.
Published routes
USD per 1 million tokens. The full table, with cache read and context, is on the models page.
deepseek-v4.1-flash
DeepSeek
$0.0516
$0.2062
glm-5.3-flash
Z.ai
$0.0353
$0.0346
Pricing
Add credit when you want. Requests draw it down at the published per-million rates. No monthly fee, no auto-renewal.
Top up with Stripe. Sign up is free and includes $0.01 to try a short request.
prepaid credit
never expires
prepaid credit
never expires
prepaid credit
never expires
prepaid credit
never expires
A failed request is not billed. The balance has to cover the prompt before a call starts, and the completion length is capped at what that balance can pay.
Questions
POST https://www.bluusun.com/api/v1/chat/completions with Authorization: Bearer bsu_…. Model ids are on the models page.
Input tokens, cache-read tokens, and output tokens, each at the catalog rate per million. The price is rounded up to the nearest $0.000001. Errors are free.
No. One Bluusun key and one balance. Routing stays on our side.
Yes. Set stream: true. The final event includes usage, which is what we bill.
Writing
Notes on the models and the router, plus short answers you can link to. The API and this page stay put.
Posts on DeepSeek, GLM, and running one prepaid endpoint. The list fills as pieces are published.
Direct answers on billing, model ids, and the OpenAI-compatible API.
Bluusun Group
We run the systems we ship. This API is the public product. The other two divisions stay in-house.
The router on this page. DeepSeek and GLM, one prepaid balance, OpenAI-compatible.
Systematic strategies and risk analytics, researched and operated in-house — not a public trading product.
Autonomous systems for construction and industry, tested on the work they are meant to do.