Stable Diffusion Pricing Explained: Plans, Costs and What You Get
Stable Diffusion has no single subscription. Models are free to self-host, the API charges per image from $0.009, and Brand Studio starts at $19 a month.
By Galactic News Editorial · Published 2026-11-10T22:28:24+00:00 · Updated 2026-11-10T22:28:24+00:00
Stable Diffusion Pricing Explained: Plans, Costs and What You Get
Stable Diffusion pricing confuses people because there is no single subscription. You can pay nothing, pay per image, or pay a monthly plan, depending on how you use it. The model weights are free to download and run on your own hardware. The Stability AI API charges per image, starting at $0.009. Brand Studio, the hosted creative platform, starts at $19 a month. Here is what each route costs and who it fits.
Route 1: self-hosted, free under the Community License
Stable Diffusion models are free to download from Stability AI and Hugging Face. You can run them on your own computer with tools such as Automatic1111, ComfyUI or Forge. There is no license fee for individuals and organisations with under $1 million in annual revenue, including commercial use, under the Stability AI Community License.
Above $1 million in annual revenue, you need a custom Enterprise license. The cost is quoted per organisation. Self-hosting is not free in practice, though. You need a capable graphics card, ideally with 8 GB of video memory or more for SDXL, plus time to set up and learn the tools. After that, each image costs nothing but electricity.
Self-hosting fits creators who want full control, private local generation, and custom models. It fits badly if you have no GPU or no time to maintain a setup.
Stable Diffusion pricing on the API: cost per image
The developer API on platform.stability.ai bills in credits. One credit equals $0.01. New accounts receive 25 free credits to test the API. There is no subscription required. You buy credits and spend them per generation.
| Model or service | Credits per image | Cost per image |
|---|---|---|
| SDXL 1.0 | From 0.9 | From $0.009 |
| Stable Diffusion 3.5 Flash | 2.5 | $0.025 |
| Stable Image Core | 3 | $0.03 |
| Stable Diffusion 3.5 Medium | 3.5 | $0.035 |
| Stable Diffusion 3.5 Large Turbo | 4 | $0.04 |
| Stable Diffusion 3.5 Large | 6.5 | $0.065 |
| Stable Image Ultra | 8 | $0.08 |
The API also sells editing and upscaling. Inpaint, outpaint, erase object, remove background and search-and-replace cost 4 to 5 credits each. The fast upscaler costs 2 credits. The creative upscaler costs 60 credits, or $0.60 per image. Audio generation with Stable Audio 3.0 costs 8 credits.
API Membership: $20 a month for 6,000 credits
Heavy API users can buy the API Membership plan. It costs $20 a month for 6,000 credits. That buys 2,000 Stable Image Core images, or 750 Stable Image Ultra images, at the standard rates. Credits beyond the monthly allotment are pay-as-you-go at the same per-credit rate. Unused credits do not roll over to the next month.
Do the maths before you subscribe. If you generate fewer than about 600 Core images a month, pay-as-you-go is cheaper. The membership only wins once your monthly credit use passes $20 at list rates.
Route 3: Brand Studio pricing
Brand Studio is Stability AI's hosted platform for marketing and advertising teams. It launched on April 8, 2026, and replaced Dream Studio. It trains on your brand assets and produces on-brand visuals. It is a different product from the developer API, with its own credits.
| Plan | Price | Credits |
|---|---|---|
| Trial | Free | 1,000 credits |
| Creator | $19 a month | 2,000 credits |
| Core | $50 a month | 5,000 credits |
| Enterprise | Custom | Custom bundles, unlimited seats |
Unused Brand Studio credits do not roll over. Enterprise adds custom credit bundles, unlimited seats, indemnification and implementation services. Brand Studio fits teams that need managed creative production. Developers building an app should use the API instead.
What 1,000 images actually cost
Take a concrete example. One thousand Stable Image Core images cost 3,000 credits, or $30 pay-as-you-go. On the $20 API Membership, the same 1,000 images use 3,000 of your 6,000 credits, so the effective cost is about $10 plus the unused half of the plan. One thousand Ultra images cost 8,000 credits, or $80 pay-as-you-go. Self-hosted, the same 1,000 images cost nothing after hardware, but take your time and your GPU.
Small batches stay cheap on the API. A hundred Core images cost $3. A hundred Ultra images cost $8. Costs only bite at volume, which is when the membership or self-hosting starts to win.
Bottom line
Stable Diffusion pricing has three honest answers. Self-host if you have a GPU and want zero per-image cost. Your only bill is hardware and power, and commercial use is free under $1 million in annual revenue. Use the API if you build software or generate in bursts. At $0.009 to $0.08 per image, it is one of the cheapest hosted options, and 25 free credits let you test it first. Add the $20 membership only when you pass about 600 Core images a month. Choose Brand Studio if you are a marketing team that wants managed, on-brand production rather than raw models. Pick the route that matches how you work, not the one with the lowest headline price.