AI Tool Profile

Stable Diffusion

Stability AI released Stable Diffusion 3.5 Large and Large Turbo as open model weights, followed by Stable Diffusion 3.5 Medium.

Company
Stability AI
Primary category
AI Image Tools, AI Open-Weight Models
Best for
Image creators, app builders, researchers, and teams that want customizable image models with downloadable weights.
Pricing
Weights are available under the Stability AI Community License, with API and enterprise licensing options.
Free plan
yes
API
yes
Open source/open weight
yes
Linked launches
2
Latest launch date
October 22, 2024
Last verified
2026-06-08

Verification & Sources

Status
Verified profile
Source links
1
Freshness
Verified June 8, 2026
Last verified
June 8, 2026
Last updated
June 7, 2026

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What It Does

Stability AI released Stable Diffusion 3.5 Large and Large Turbo as open model weights, followed by Stable Diffusion 3.5 Medium.

Launch History

AI Image Tools

Introducing Stable Diffusion 3.5

Stability AI released Stable Diffusion 3.5 Large and Large Turbo as open model weights, followed by Stable Diffusion 3.5 Medium.

Free: Yes API: Yes Open: Yes
Creator coverageClear use caseBeginner-friendlyCreator-friendly
Kingy
8.5 / 10
Demo
3.0 / 10
YouTube
Medium

A core open-weight image model record because it affects builders who want more control than closed image APIs allow.

AI Image Tools

Announcing the open release of Stable Diffusion 3 Medium

Stability AI released Stable Diffusion 3 Medium weights as a smaller open image generation model in the Stable Diffusion 3 series.

Free: Yes API: Yes Open: Yes
Creator coverageClear use caseBeginner-friendlyCreator-friendly
Kingy
8.5 / 10
Demo
3.0 / 10
YouTube
Medium

Worth tracking because open image model launches often have a second-order effect through fine-tunes, LoRAs, and creator tools.