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Stable Diffusion 3.5 Review 2026 — Is It Worth Using Over Flux.1?
Stable Diffusion 3.5 brings MMDiT-X architecture, improved text rendering, and 3 model variants. Free community license. Is it better than Flux.1? Full comparison.
Stable Diffusion 3.5 is a family of image-generation models with Large, Large Turbo, and Medium variants. It supports styles including photography, painting, 3D, and line art, with text prompt adherence and diverse outputs.
Creators, developers, researchers, and enterprises can self-host the models, use Stability AI's API, or access them through cloud partners and web applications. Community licensing is free for eligible users; API generation uses credits, while enterprise licensing and support are custom-priced.
Features
- Generates images from text prompts
- Supports photography, painting, 3D, and line-art styles
- Includes Large, Large Turbo, and Medium variants
- Large targets professional 1-megapixel image generation
- Large Turbo generates images in four steps
- Medium is designed to run on consumer hardware
- Supports self-hosting and API integration
- Available under the Stability AI Community License
Use cases
- Create concept art and visual development assets
- Generate marketing and editorial images
- Fine-tune models for specialized creative workflows
- Build image-generation applications with the API
- Run image generation on consumer hardware
- Deploy image workflows for enterprise creative teams
Pros
Cons
Latest updates
- Stability AI and NVIDIA Bring Faster Performance and Simplified Enterprise Deployment with the Stable Diffusion 3.5 NIM (Stable Diffusion 3.5)
Stability AI launched an NVIDIA NIM microservice for Stable Diffusion 3.5, available at build.nvidia.com.
- API Deprecation Notice
Deprecating the Stable Diffusion 3.0 APIs and automatically upgrading to Stable Diffusion 3.5 APIs at no extra cost.
- Replace Background & Relight
The SD3 and SD3.5 models now support the cfg_scale parameter.
- Stable Diffusion 3.5 Medium & Stable Image Ultra
The endpoint supports sd3.5-medium; Stable Image Ultra is now powered by Stable Diffusion 3.5 Large.
- Stable Diffusion 3.5 Large & Large Turbo
The endpoint supports sd3.5-large and sd3.5-large-turbo in the model parameter.
Capabilities
- Text to image — “SD 3.5 is our most powerful 8 billion parameter base model with superior quality and prompt adherence” source
- Edits images — “Inpaint Use a mask (or alpha channel) to replace anything in an image” source
- Upscales — “Simple, low-cost upscaler to increase image resolution by 4, up to 4 megapixels” source
- Style or character reference — “Style Transfer Apply visual styles from reference images to a target image to maintain consistency across content” source
- Commercial use — “The models are available for commercial and non-commercial use under our permissive Stability AI Community License .” source
- API — “Deploy Stable Diffusion 3.5 on your own infrastructure, integrate it via our API, or start creating now with our web-based applications.” source
Get it
Security
Pricing
- Prices checked
- 2026-10-26
Stable Diffusion 3.5 Large
- 6.5 credits
- 8 billion parameter base model with superior quality and prompt adherence
Stable Diffusion 3.5 Large Turbo
- 4 credits
- Turbo variant of Stable Diffusion 3.5 Large, for fast high-quality images
Stable Diffusion 3.5 Medium
- 3.5 credits
- The 2 and 2.5 billion parameter variants of Stable Diffusion 3.5 respectively
Stable Diffusion 3.5 Flash
- 2.5 credits
- The distilled version of Stable Diffusion 3.5 Medium, for fast, high-quality images