Stability AI

Stability AI's Platform API generates and edits images, audio and 3D models with Stable Image, Stable Diffusion 3.5 and Stable Audio. You call it over REST with an API key and pay per credit.

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Stability AI at a glance

From official pages, checked Nov 9, 2026. Tap the arrow for each source.

Free tier: 25 free credits
New accounts created with Google login get 25 free credits, enough for 8 Stable Image Core images.
Starting price: $0.03 per Core image
Credits cost $1 per 100 (1 credit = $0.01). Stable Image Core is 3 credits; Ultra is 8 credits.
Rate limit: 150 requests per 10 seconds
Going over returns 429 and blocks requests for 60 seconds. Higher limits by contacting support.
Storage: Async results kept 24 hours
Results of async jobs (like Creative Upscale) are stored for 24 hours and fetched with the same API key.

What you can build with Stability AI

Stability AIIntegrationPaste

Generate an image from a text prompt with Stable Image Core in Python

Send a prompt to Stability AI's Stable Image Core API from Python and save the image to a file. 3 credits per image.

Free tier: 25 free creditsFrom $0.03 per Core image

Image gen

Stability AI at a glance

What you can build with Stability AI

Generate an image from a text prompt with Stable Image Core in Python

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