OpenAIFastHigh

GPT Image 1 Mini

Cheaper, faster tier of OpenAI's GPT Image 1, served through the LLM gateway via the OpenAI Images API. Same token-billed generation flow at a fraction of the cost - ideal for drafts and high-volume image generation.

8 credits

per image (approx, 1024×1024)

Cheaper, faster image generation tier of GPT Image 1

Token-based billing: text input tokens (3,716 credits/1M) and image output tokens (14,864 credits/1M) are billed separately

Natively multimodal generation flow (text and image inputs, image outputs)

Served through the LLM gateway via the OpenAI Images API

Run it right now

Test this model instantly in the Console Playground — no code required

Use with AI Assistant

Copy usage instructions for Claude, ChatGPT, or other AI

llms.txtllms.txt ↗

Quick Start

curl -X POST "https://api.core.today/v1/predictions" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: cdt_your_api_key" \
  -d '{
  "model": "gpt-image-1-mini",
  "input": {
    "model": "gpt-image-1-mini",
    "prompt": "A minimalist flat-design logo concept for a coffee brand, warm palette",
    "size": "1024x1024"
  }
}'

Parameters

Parameter	Type	Required	Default	Description
`model`	string	Yes	gpt-image-1-mini	Model identifier
`prompt`	string	Yes	-	A text description of the desired image
`size`	string	No	auto	Output image size 1024x10241536x10241024x1536auto
`quality`	string	No	auto	Rendering quality. Higher quality produces more image output tokens and therefore costs more lowmediumhighauto
`background`	string	No	auto	Set whether the background is transparent, opaque, or chosen automatically autotransparentopaque
`output_format`	string	No	png	Output image format pngjpegwebp
`n`	integer	No	1	Number of images to generate. Each image bills its own output tokens

Common Parameters

Common parameters used when calling POST /v1/predictions.

Parameter	Type	Required	Default	Description
`model`	string	Yes	-	Model identifier
`input`	object	Yes	-	Object containing the model-specific parameters from the table above
`output_folder`	string	No	-	Folder path for output files (max 256 chars, '..' not allowed)
`webhook_url`	string	No	-	Webhook URL to call on completion
`is_public`	boolean	No	false	If true, output files are also available via permanent public URLs

Examples

Draft Iteration

Cheap, fast image draft via the OpenAI Images API

curl -X POST "https://api.core.today/v1/predictions" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: cdt_your_api_key" \
  -d '{
  "model": "gpt-image-1-mini",
  "input": {
    "model": "gpt-image-1-mini",
    "prompt": "A minimalist flat-design logo concept for a coffee brand, warm palette",
    "size": "1024x1024"
  }
}'

Tips & Best Practices

1Works with the OpenAI SDK - set base_url to https://ai.api.core.today/llm/openai/v1 and use client.images.generate()

2Billing is token-based: text input tokens at 3,716 credits/1M plus image output tokens at 14,864 credits/1M - larger sizes and higher quality produce more output tokens

3The ~8 credits per image figure assumes a 1024×1024 output; treat it as an estimate, not a flat rate

4Roughly 5x cheaper than GPT Image 1 - iterate here, then switch models for the final render