Model reference · open weights
stable-diffusion-3.5-medium-amdnpu is an open-weight image model from stabilityai. AxForge deploys and operates it for you on dedicated EU-owned hardware — with the licence handled where one is required.
Available as managed deployment — configured and operated for you on dedicated EU hardware, quoted per deployment.
What it is
| Maker | stabilityai |
|---|---|
| Type | Image models |
| Task | Text→image |
| Runs with | diffusers |
| Released | 2026-05-01 |
| Popularity | 0 downloads / month |
| Licence | Commercial licence needed |
About
"Stable Diffusion 3.5 Medium is an improved version of SD3 Medium, featuring better prompt adherence, better generation quality, and more diverse outputs. SD3.5 Medium is a Multimodal Diffusion Transformer (MMDiT) text-to-image model that features improved image quality, typography, and prompt understanding." (stabilityai/stable-diffusion-3.5-medium)
This version of the model has been optimized to run on AMD NPUs.
For more information, refer to the original model card under stabilityai/stable-diffusion-3.5-medium.
| Model Details | Description |
|---|---|
| Person or organization developing model | AMD |
| Original model authors | Stability AI |
| Model date | February 2026 |
| Model version | 1.8.0 |
| Model type | Diffusion-based text-to-image generation model |
| Information about training algorithms, parameters, fairness constraints or other applied approaches, and features | This is a model that can be used to generate and modify images based on text prompts. |
| License | Stability AI Community |
| Where to send questions or comments about the model | Community Tab and AMD Developer Community Discord |
To get started with this model, visit github.com/amd/sd-sandbox.
AMD is committed to conducting our business in a fair, ethical and honest manner and in compliance with all applicable laws, rules and regulations. You can find out more at the AMD Ethics and Compliance page.
Please visit the original model card for more details: stabilityai/stable-diffusion-3.5-medium.
From the published model card. Full card on the HuggingFace links in the sidebar.
How it works
Using it via the API
Once AxForge deploys stable-diffusion-3-5-medium-amdnpu for you, it answers on the OpenAI-compatible API — the same base URL and keys as every other model. (stable-diffusion-3-5-medium-amdnpu below is illustrative; you get the exact model name on deployment.)
$ curl -sS https://api.axforge.ai/v1/images/generations \
-H "Authorization: Bearer $AXFORGE_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"stable-diffusion-3-5-medium-amdnpu","prompt":"a red bicycle","size":"1024x1024"}'
Create an account — your API key is available in the console. 5M tokens/month currently included with every new account at launch.