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Stable Diffusion 3.5 Large

Stability AI’s large open image model for high-quality text-to-image and image-to-image generation.

Stable Diffusion 3.5 Image Open weights Open weights: Yes API: Yes and self-hosted

Plain-English Summary

Stability AI’s large open image model for high-quality text-to-image and image-to-image generation.

Technical Notes

Large open diffusion-transformer model designed for prompt adherence, diverse styles, customization, and professional image generation.

Best For

Self-hosted image generation, fine-tuning, creative pipelines

Watch Out For

Requires capable GPUs; license conditions apply and image quality needs human review.

Model Specs

Maker
Stability AI
Country
UK
Family
Stable Diffusion 3.5
Type
Image
Release date
2024-10-22
Date confidence
Exact
Status
Open weights
Context window
Varies
Max output
Not listed
Parameters
8B
Active parameters
8B
Architecture
Multimodal diffusion transformer
Reasoning
Not applicable
Tool calling
No
Structured output
No
API available
Yes and self-hosted
Open weights
Yes
Self-hostable
Yes
License
Stability AI Community License
Inputs
Text, image
Outputs
Image
Approx. price
See provider pricing
How to access
Provider website
Model / API ID
stable-diffusion-3.5-large
Knowledge cutoff
Not publicly disclosed
Fine-tuning
Fine-tuning, ControlNets, LoRAs, self-hosting
Completeness
90 %
Verified
Jul 18, 2026
Snapshot date
Jul 18, 2026
Source
Official source