# StepFun: step-image-edit-2 — API on ChinaAPI

> StepFun Step Image Edit 2 — unified text-to-image and image-editing model under 6B parameters that completes an edit in one to two seconds, built for low-latency interactive retouching. Supports negative prompts and a text-optimization mode; one image per request over the OpenAI-compatible images endpoint.

- Canonical page: https://chinaapi.ai/models/step-image-edit-2/
- Model ID: `step-image-edit-2`
- Type: image generation
- Capabilities: Image, Image Editing, Fast
- Billing: $0.0035 per image (USD)
- Endpoint: `POST https://api.chinaapi.ai/v1/images/generations`
- Pricing basis: The displayed media rate may include a service margin covering provider input/output billing, payment processing, chargeback exposure, and operations. Any margin is included in the displayed rate and is not added separately.
- Access: no mainland-China account or phone number required; $2 free trial credit
- Sign up: https://dash.chinaapi.ai/register?lang=en&utm_source=chinaapi&utm_medium=model-md&utm_campaign=step-image-edit-2

## Quickstart

```
curl -X POST https://api.chinaapi.ai/v1/images/generations \
  -H "Authorization: Bearer $CHINAAPI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "step-image-edit-2",
    "prompt": "A clean product hero image with controlled lighting"
  }'
```

## FAQ

**How do I use step-image-edit-2?**
Use step-image-edit-2 through ChinaAPI with an API key and the OpenAI-compatible endpoint shown on this page.

**How much does step-image-edit-2 cost?**
step-image-edit-2 is $0.0035 per image, paid in USD. The live pricing page is authoritative. The displayed media rate may include a service margin covering provider input/output billing, payment processing, chargeback exposure, and operations. Any margin is included in the displayed rate and is not added separately.

**Does step-image-edit-2 need a Chinese account?**
No. ChinaAPI provides access without a mainland-China account or phone number and includes a $2 free trial. Check live pricing for the displayed USD rate.

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Markdown twin of https://chinaapi.ai/models/step-image-edit-2/ — generated by scripts/gen_model_pages.py. Full catalog: https://chinaapi.ai/llms-full.txt