SD 3.5 Large — AI Image Generator
Complex prompts and open workflows. Handles multi-part instructions well and is the most openly documented model here, which matters if you want to understand rather than just use it.
SD 3.5 Large is made by Stability AI. Handles multi-part instructions well and is the most openly documented model here, which matters if you want to understand rather than just use it.
Where it struggles: Anatomy — particularly hands — remains weaker than the newest closed models.
Reach for it when the job is complex prompts and open workflows. For anything else, the model directory has a comparison of the alternatives — picking by job rather than by version number is most of what separates a good result from an expensive one.
At a glance
- Made by
- Stability AI
- Best for
- Complex prompts and open workflows
- Resolution
- Up to 1 megapixel native
- Speed
- Moderate
- Openness
- Open weights
- Known weakness
- Hands and complex anatomy
Prompting SD 3.5 Large
- Weighted prompting works: emphasising the terms that matter most gives you real control over what the model prioritises.
- Put the subject in the first few words — every model here weights the start of a prompt most heavily.
- Describe the lighting explicitly. It is the change that most reliably moves output towards the photographic.
- Generate at the aspect ratio you need rather than cropping afterwards, which costs you pixels and composition.
All tools
HOT
Image Enhancer
Instantly improve image quality.
1 credits · Free
4K
Image Upscaler
Upscale images up to 4K resolution.
1 credits · Free
Image Sharpener
Fix blurry and out-of-focus photos.
1 credits · Free
Text Clarifier
Make blurry text in photos and scans readable.
7 credits · Free
Photo Restore
Repair tears, creases, stains and fading in old photos.
2 credits · Free
AI Face Enhancer
Sharpen and restore faces in blurry or low-resolution photos.
1 credits · Free
AI Anime Enhancer
Enhance and upscale anime images.
1 credits · Free
HOT
Background Remover
Remove backgrounds automatically.
1 credits · FreePicking between models
No model here is best at everything, and the pricing reflects compute rather than quality — a slow expensive model is not automatically the right answer. Explore on something fast, render on something good, and read the page for whatever you are about to spend credits on.
Frequently asked questions
What is SD 3.5 Large best at?
Complex prompts and open workflows. Handles multi-part instructions well and is the most openly documented model here, which matters if you want to understand rather than just use it.
What are its weaknesses?
Anatomy — particularly hands — remains weaker than the newest closed models.
How much does it cost to run?
Credit cost varies by model and output size, and reflects the GPU time a run actually takes. The generator shows the cost for your chosen model before you commit.