Stability AI API pricing
Tutujin API currently offers 4 Stability AI models (4 chat), pay-as-you-go with no monthly fee, callable through an OpenAI-compatible API.
Among per-request models, the cheapest is stable-diffusion at ¥0.02 per request (Standard group).
Prices updated Nov 13, 2026, 6:08 PM
4
Models
3
Groups
1
Endpoints
¥0.02
Lowest per request
/ request
All Stability AI model prices
Each row shows the model's cheapest group, in CNY. Prices in other groups are on the model's own page.
Chat models3
| Model | Cheapest group | Input ¥/1M | Output ¥/1M | Per request ¥ |
|---|---|---|---|---|
| stable-diffusion-3-2b | Standard | — | — | ¥0.02 |
| sdols-2.0 | Standard | — | — | ¥2.8 |
| sdols-2.0-fast | Standard | — | — | ¥2.8 |
Image models1
| Model | Cheapest group | Input ¥/1M | Output ¥/1M | Per request ¥ |
|---|---|---|---|---|
| stable-diffusion | Standard | — | — | ¥0.02 |
How to call Stability AI models
One Tutujin API key is all you need; the example uses stable-diffusion. Point base_url at https://www.tutujin.com/v1 and keep the rest of your official-SDK code.
curl https://www.tutujin.com/v1/chat/completions \
-H "Authorization: Bearer $TUTUJIN_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "stable-diffusion",
"messages": [{"role": "user", "content": "Introduce yourself in one sentence"}]
}'FAQ
How is Stability AI API usage billed on Tutujin?
You pay for actual usage, with no monthly fee or minimum spend. Token-billed models charge input and output tokens separately; per-request models charge per call. The same model costs different amounts in different groups; this page shows each model's cheapest group. Prices updated Nov 13, 2026, 6:08 PM.
How do I call Stability AI models?
Create an API key in the console, set your SDK's base_url to https://www.tutujin.com/v1 and use a model name from the table on this page. Stability AI models on this site support these endpoints: Chat Completions.
Which groups can I use for Stability AI models?
Available groups: Standard, Economy (per call), Stable Diffusion. A group decides the line a key uses and the price it pays; you choose one for each API key when you create it.
Can I get an invoice?
Yes. We issue both China domestic invoices (fapiao) and overseas invoices: add our WeChat support JsnonoChat and send your order number.