HiAPI GPT Image 2

Use this skill when the user wants image generation through the HiAPI GPT Image 2 family.

Requirements

• Node.js 18 or newer.
• HIAPI_API_KEY must be set in the environment.
• HIAPI_BASE_URL is optional and defaults to https://api.hiapi.ai.

Important links:

• Get API key: https://www.hiapi.ai/en/register
• Pricing: https://www.hiapi.ai/en/pricing
• Docs: https://docs.hiapi.ai

Never invent an image result. If the API call fails, report the status code, compact error message, and the next action from the Error Guidance section.

Generate An Image

Run:

node scripts/hiapi-gpt-image-2.mjs --prompt "Create a launch poster for an AI note app" --aspect-ratio 16:9

Supported models:

• gpt-image-2
• gpt-image-2-pro
• gpt-image-2-image-to-image
• gpt-image-2-image-to-image-pro

For image-to-image requests, use one of the image-to-image models and pass --input-url once per reference image. The API field is input.input_urls; supported count is 1 to 5 images.

Supported aspect ratios:

• auto
• 1:1
• 3:2
• 2:3
• 16:9
• 9:16
• 4:3
• 3:4
• 5:4
• 4:5
• 2:1
• 1:2
• 3:1
• 1:3
• 21:9
• 9:21

Supported resolutions:

• 1K
• 2K
• 4K

Pro models (gpt-image-2-pro, gpt-image-2-image-to-image-pro) only support 1K and 2K, and a narrower aspect ratio set (no 2:1, 1:2, 3:1, 1:3, 9:21; plain pro also has no auto).

Cross-field constraints for gpt-image-2 and gpt-image-2-image-to-image:

• aspect_ratio=auto (or omitted) only supports resolution=1K.
• aspect_ratio=1:1 cannot be combined with resolution=4K.

The script writes generated data URI images to outputs/ and prints JSON with the saved file paths or remote URLs.

API Contract

This skill calls:

POST /v1/tasks
GET /v1/tasks/{taskId}

with:

{
  "model": "gpt-image-2",
  "input": {
    "prompt": "...",
    "aspect_ratio": "16:9",
    "resolution": "1K"
  }
}

Image-to-image:

{
  "model": "gpt-image-2-image-to-image-pro",
  "input": {
    "prompt": "...",
    "input_urls": ["https://example.com/source.png"],
    "aspect_ratio": "auto",
    "resolution": "2K"
  }
}

POST /v1/tasks returns data.taskId. Poll GET /v1/tasks/{taskId} until status is success. Expected image output is in data.output[], commonly:

{
  "data": {
    "status": "success",
    "output": [{ "type": "image", "url": "https://cdn.example.com/image.png" }]
  }
}

For details, read references/api.md and references/output.md.

Check Configuration

Run:

node scripts/check-config.mjs

Use --live only when you want to verify that the configured key can reach the HiAPI pricing endpoint.

Error Guidance

• Missing HIAPI_API_KEY: tell the user to create or copy a key from https://www.hiapi.ai/en/register and export it.
• HTTP 401 or 403: tell the user to verify the HiAPI API key.
• HTTP 402, insufficient balance, credits, quota, or payment errors: tell the user to add credits or check billing at https://www.hiapi.ai/en/dashboard and review pricing at https://www.hiapi.ai/en/pricing.
• HTTP 429: tell the user to wait and retry or reduce concurrent image generations.
• Content policy or safety errors: ask the user to revise the prompt.
• No extractable image: explain that this skill expects data.output[] to contain an image URL or data URI after the task succeeds.
• Optional skill update notice: tell the user the printed update command can be run later.
• Required skill update notice: tell the user the printed update command must be run before using this skill again.