What is the difference between Stable Diffusion 3 and 3.5?

SD 3.5, released after SD 3 Medium, is the version Stability actively ships: 3.5 Large for quality, 3.5 Large Turbo for speed, 3.5 Medium for lighter hardware. If you are searching for 'Stable Diffusion 3' today, 3.5 is almost certainly what you want.

Can I run Stable Diffusion 3.5 online for free?

You can generate a limited number of images for free on Diffus before subscribing. Plans start at $1/month and every plan is credit-based, so the cost of a generation is visible before you run it.

No. SD 3.5 Large is a large model that wants a lot of VRAM locally; here it runs on our GPU pool and you use a browser.

Which SD3 models are available?

26 SD3-family checkpoints and 12 LoRAs, covering 3.5 Large, Large Turbo, Medium, SD3 Medium and community fine-tunes built on them. You can also import any SD3.5 model from Civitai by pasting its URL.

Is SD 3.5 better than Flux?

They trade places by prompt. SD 3.5 is strong on typography and multi-subject scenes; Flux often wins on photographic realism. Both are here, so run your prompt through each and judge on your own output instead of on a benchmark.

Can I use the images commercially?

Stable Diffusion 3.5 is released under Stability's community license, which permits commercial use below a revenue threshold; check the current license for your situation. Community fine-tunes carry their own terms.

Can I use ControlNet and LoRAs with SD 3.5?

Yes. Stack LoRAs in the generator, or open the same model in ComfyUI or the A1111 WebUI for ControlNet, inpainting and full workflow control.

SD3 and SD3.5, hosted

Run Stable Diffusion 3.5 in Your Browser

SD 3.5 Large, Large Turbo, Medium and 3.5-based community checkpoints, ready to prompt. No 16 GB download, no diffusers setup, no GPU.

Generate with SD 3.5

Benefits at a glance

Why Run SD 3.5 Here

The model is free to download. What is not free is the disk, the GPU and the hour of setup.

The Whole SD3 Family, Loaded

26 SD3 and SD3.5 checkpoints and 12 LoRAs are hosted and selectable — 3.5 Large, Large Turbo, Medium, and the community fine-tunes built on them.

Start generating

Compare It Against Flux and SDXL

SD 3.5 is one model among 70,000+. Run the same prompt through Flux, Qwen, SDXL or an Illustrious fine-tune in the same session and keep whichever wins.

Browse models

Form, WebUI or Node Graph

Start in the one-box generator. When you need ControlNet, inpainting or a LoRA stack, the same model is already waiting in ComfyUI and the A1111 WebUI.

Open ComfyUI

Core capabilities

What You Can Do With It

Generation is the first step, not the whole job.

feature 1

Text to Image at Full Resolution

Prompt SD 3.5 Large for detail or Large Turbo for speed, at the aspect ratio you need. Its rectified-flow architecture was built for multi-subject prompts and legible text in image, the two places earlier Stable Diffusion versions struggled.

Start generating

feature 2

Edit What You Generated

Inpaint, outpaint, upscale, swap a background or fix a face — without exporting the image to another tool and losing the generation parameters.

Open the editor

Editing a Stable Diffusion image on Diffus

feature 3

Add LoRAs, or Train One

Stack SD3.5 LoRAs from the library, import one from Civitai by URL, or fine-tune your own on Diffus and use it the moment training finishes.

Browse models

Selecting a Stable Diffusion model on Diffus

How it works

Three Steps, No Setup

Nothing to download and no hardware to buy.

step 1

Pick SD 3.5

Choose 3.5 Large, Large Turbo, Medium or a community fine-tune from the model list.

step 2

Write the Prompt

SD 3.5 follows long, specific prompts well — describe the scene rather than stacking keywords.

step 3

Generate and Refine

Iterate, then upscale or inpaint in place. Outputs land in your gallery.

Get started

Free creator tools

More Free Tools

Single-purpose tools on the same models and the same GPUs.

AI Image Generator

Text to image with community models, styles and aspect ratios.

Try for free

AI Image Editor

Prompt-guided edits on your own images.

Try for free

ComfyUI

The full node graph, with 62 node packs preinstalled.

Open ComfyUI

Explore the library

SD3 and Everything Else

Checkpoints, LoRAs and embeddings across every open model family, ready without a download.

Woman warrior standing barefoot against a flat yellow background, wearing a deep purple kimono with golden phoenix embroidery, holding a large ornate halberd, with a blunt ash-blonde bob haircut.

All Disney Princess (Illustrious) Illustrious

An anatomical chart illustrating a great horned owl as a surveillance drone, showing half natural feathers and half robotic machinery with wires, processors, and sensors.

A tall winged figure in a blue dress adorned with swirling colorful abstract patterns stands against a dark background with artistic splashes and tiny curious characters at her feet.

White-haired girl with blue eyes sitting on a subway bench with an abstract background filled with many blue eyes.

A glamorous woman in a deep red sequin dress performing with a vintage microphone on a stage with a grand piano and dramatic lighting in a retro nightclub setting.

A cat girl character with black hair, green eyes, round rimless glasses, cat ears, and tail, wearing an off-shoulder green sweater, kneeling barefoot.

Link from the legend of Zelda BOTW [FLUX DEV] v1.0

A stylized white-haired girl with green eyes wearing a dark green overcoat stands in a snowy village at night with falling snow and illuminated lampposts.

Close-up portrait of a girl with long black hime-cut hair and red eyes drinking blood from a blood bag using a straw, dressed in a white coat and black shirt with a red necktie, set against a dimly lit dark background with soft shadows.

Get inspirations

Made on Diffus

Community work, with the model and prompt behind every image.

A woman in a red sheer dress illuminated by red light stands before two large blue flowers against a dark background, creating a dramatic contrast.

A warrior with white hair stands on a rocky cliff near a tall, cascading waterfall in a Nordic fjord landscape featuring rugged cliffs and misty water.

A fierce female warrior in black and gold power armor holding a glowing red spear, standing in a gothic cathedral with supernatural red energy swirling around her.

A fierce female warrior with cat ears, silver spiky hair, yellow slit pupils, and scars wearing power armor, holding a glowing axe, standing on the moon with a large full moon and starry sky background.

A colossal dark fantasy spider with glowing eyes hovers above a towering ancient spire surrounded by eerie fog and ghostly battlefield.

Digital artwork of a chrome skeleton wearing a white leather jacket with a hood, holding a futuristic rifle against a solid red background.

Vintage-style 1930s movie still of a woman in a black dress adorned with an intricate necklace and earrings, standing in front of a large crescent moon, with classic makeup and closed eyes.

An abandoned rusted cyborg covered in vines and pink and yellow flowers lying on its back with a watercolor splatter backdrop.

Close-up cinematic portrait of a young woman with vibrant ginger hair styled in two buns, bright blue eyes, freckles, red lipstick, wearing a blue and white striped shirt with floral neckline.

A glossy yellow duckling with a wide beak featuring sharp dripping teeth, floating in shimmering yellow water with a dreamy yellow background.

A bold pop art-style illustration of a shiny metallic ring with a pink glossy finish and the word 'YEAH' engraved on top, set against a vibrant blue background.

A confident fashion model with blonde hair and pink sunglasses wearing an orange sleeveless dress and pink high-heeled boots standing on an urban street with palm trees and pastel buildings under a clear blue sky.

A crowded medieval market alley lined with timber-and-plaster buildings, featuring a hooded merchant at a wooden stall displaying brass amulets and trinkets bathed in warm amber light.

Portrait of a slender fae female with pale blonde hair and luminous green eyes, wearing a black cloak and tunic, holding a dagger amid deep shadows.

A black silhouette figure with angel wings and a glowing halo, featuring vivid red streaks in the hair, set against a neutral beige background with dramatic chiaroscuro lighting.

A tattooed man with flowing white shirt and tattered pants stands on a rusted staircase in a smoky, golden-lit post-apocalyptic cityscape.

A terrified woman looks up from the bottom of a dark, claustrophobic well as a rusty bucket is lowered on a rope above her, casting eerie shadows.

Close-up ink splash art portrait of a sultry Asian woman with flowing black hair, dark eyeshadow, red lips, and an abstract yellow background.

Close-up portrait of a woman with pale skin wearing a blue beret, vibrant rainbow glitter eyeshadow, magenta glossy lipstick, and playfully sticking her tongue out.

Portrait of a woman with pink-red hair and blue eyes against a black backdrop, illuminated by soft studio lighting highlighting her sharp facial features.

A pastel-colored fantasy landscape inspired by Studio Ghibli, featuring a towering tower resembling a female form, surrounded by fluffy clouds, overlooking a calm blue sea and pebbled shore with a seated figure.

Surreal vector illustration of a female African ghost nun wearing a simulated plugsuit and a metallic crown, highlighted with a bold cyan and pink palette.

Dynamic digital illustration of a female outlaw wearing a flowing red dress and cowboy hat, holding two golden revolvers with visible tattoos on her arms and leg.

Side view of a winged air elemental dressed in a pink gown with white wings, resting amid a dark, apocalyptic castle environment with billowing dust.

A black-toned Renaissance-style depiction of a rusting, intricate steampunk car overgrown with bronze detailing, set in a dark, eerie environment resembling a pristine hell.

Stylized illustration of a blonde girl with a loose braid wearing a bandeau top, wide cargo pants with suspenders, standing against an abstract blue and ochre background.

A stylized figure with pale blonde hair in a braid, wearing a sleeveless high-collar white dress with asymmetrical hem, sitting on a low wall. The silhouette is shaded deep blue against a simple white background.

A hyper-realistic cyberpunk portrait of a young woman with tanned skin, short black hair, and brown eyes, wearing metallic techwear, holding a glowing orb against a cityscape background.

Silhouette of a man wearing a winter coat standing in an autumn forest at night, illuminated by the headlights of a vintage car with fog and volumetric lights creating a mysterious and horror mood.

$A fractured humanoid silhouette in high-contrast black and white with textured cracked surfaces and a glowing amber eye, split between light and darkness.$