How we verified this
We don’t run generation tests, we read the fine print. For Stable Diffusion (Stability AI) we read the free tier’s own terms, its commercial-use, watermark and attribution rules, then confirmed the cheapest plan that lifts them against the official pricing page, cross-checked across multiple current sources. The watermark and license clauses below are paraphrased from those terms, and the quality score is our editorial read of the tool, not a lab benchmark. Everything here was last verified June 22, 2026.
Watermark & licensing, the part that decides monetization
Why the free plan fails: The Stability AI Community License lets you use the models commercially for free, but only while you or your organization generate under USD $1M in annual revenue. Cross that line and the license requires an enterprise agreement. It is one of the more generous open licenses, but it is a conditional commercial grant, and older versions, third-party forks, and DreamStudio hosting each carry their own terms.
Watermark
The Stability AI Community License does not require a visible watermark on generated images. Self-hosted output is unmarked. DreamStudio or other hosted platforms may apply their own marks, so check the service you use.
License
Stable Diffusion models (e.g. SD 3.5) are released under the Stability AI Community License. It grants free research, non-commercial, and commercial use to individuals and organizations under USD $1M in annual revenue; above that an enterprise license is required. The license states you own the outputs and may use them at your discretion. A generous but conditional commercial grant.
“You own outputs generated from the Core Models or Derivative Works (such as fine-tunes) and therefore can use those outputs at your discretion.”
Pros & cons
Pros
- Free commercial use for anyone under $1M annual revenue
- The license explicitly states you own the outputs
- Open weights, self-hostable, full control
- Large ecosystem of tools, forks, and fine-tunes
Cons
- Commercial right ends at $1M annual revenue without an enterprise license
- Terms differ across SD versions and third-party hosts
- Self-hosting needs real GPU resources
- Some older versions use different licenses, so read per version
Pricing, which plans are actually safe
| Plan | Price | What you get | Monetization |
|---|---|---|---|
| Community License (under $1M revenue) | Free | Commercial use of models and outputs, self-hosted, output ownership | Safe |
| DreamStudio (hosted credits) | Credit-based | Hosted generation, credits purchased separately | Safe |
| Enterprise License (over $1M revenue) | By contact | Commercial right above the $1M revenue threshold | Safe |
Affiliate link, commission costs you nothing and never changes a verdict.
Alternatives we’ve tested
Midjourney8.4
AI image · No free tier, paid-only
There is no free tier at all, Midjourney ended free trials in April 2023, so you must pay before you can generate or monetize anything.
Leonardo AI8.2
AI image · AI image generator for creators
Free images are public, owned by Leonardo, and kept under Leonardo's worldwide perpetual license.
Recraft3.9
AI image · AI image and vector generator with a strict non-commercial free tier
Recraft's own ownership docs say Free-plan images are owned by Recraft, made public in the community gallery, and that commercial use is prohibited, so a faceless creator cannot legally monetize anything made on the free tier.
FAQ
Can I sell content I make with Stable Diffusion for free?
Yes, as long as you or your organization generate under USD $1M in annual revenue. The Community License grants free commercial use under that ceiling and states you own the outputs. Above $1M you need an enterprise license.
Do I own the images?
Yes. The license says you own outputs generated from the Core Models or derivatives and can use them at your discretion.
Does this apply to every Stable Diffusion version?
No. Terms differ across versions and third-party hosts. Always check the license file for the exact model you are running and the terms of any platform you use.