AI agents for Stability AI

Get the credit balance

Returns how many Stability credits the API key's account or organization has left (credits).

Generate an image (Core)

Creates one image of about 1.5 megapixels from a text prompt with Stable Image Core, Stability's fast, affordable model (3 credits).

Generate an image (Ultra)

Creates one high-quality, photorealistic image from a text prompt with Stable Image Ultra (8 credits), Stability's best model for detail, typography and print.

Generate an image (Stable Diffusion 3.5)

Creates one image with a Stable Diffusion 3.5 model: Large (6.5 credits), Large Turbo (4, faster) or Medium (3.5).

Remove an image's background

Cuts the foreground subject out of an image file and removes the background, returning a PNG (or WebP) with transparency as a file reference in file.

Upscale an image (4x)

Makes an image file four times larger in about a second, sharpening a small or compressed image (width and height between 32 and 1,536 pixels).

Replace an object in an image

Finds an object described in words (search_prompt, like "the red car") in an image file and replaces it with what prompt describes, with no mask needed.

Erase part of an image

Removes unwanted objects or blemishes from an image file, filling the area in naturally.

Extend an image

Adds new content around an image file, up to 2,000 pixels on each side (left, right, up, down; at least one), matching what is there, guided by an optional prompt.