AI Launch Profile

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.

Company
Stability AI
Launch date
June 12, 2024
Launch type
Open-Source Release
Category
AI Image Tools, AI Open-Weight Models
Audience
Creators, Developers, Researchers, Startups
Pricing
Released under the Stability AI Community License with API and commercial licensing options.
Free plan
yes
API
yes
Open source/open weight
yes

Verification & Sources

Status
Verified
Source links
2
Freshness
Verified June 8, 2026
Last verified
June 8, 2026
Last updated
June 7, 2026

Key source checks

Suggest a correction

Kingy Scores

Launch Score
Unscored
Demo Quality
Unscored
YouTube Potential
Unscored

Kingy AI Take

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

Who it is for

Developers and creators who need a text-to-image model that is easier to run on consumer and enterprise hardware.

What feels promising

The smaller size and open release made experimentation more accessible than closed image systems.

What feels unproven

The release faced community scrutiny, so practical quality and licensing fit need case-by-case review.

Traction notes

This launch is useful historical context for the 3.5 release and the community reaction to SD3 model quality.