Stable Diffusion 3vsStable Diffusion 3.5 Large
Stability AI vs Stability AI — Side-by-side model comparison
Head-to-Head Comparison
| Metric | Stable Diffusion 3 | Stable Diffusion 3.5 Large |
|---|---|---|
| Provider | ||
| Arena Rank | — | — |
| Context Window | N/A (image) | N/A (image) |
| Input Pricing | Free (open)/1M tokens | Free/1M tokens |
| Output Pricing | Free (open)/1M tokens | Free/1M tokens |
| Parameters | 8B | 8B |
| Open Source | Yes | Yes |
| Best For | Image generation, art creation, design | Open source image generation, customization, fine-tuning |
| Release Date | Jun 12, 2024 | Oct 22, 2024 |
Stable Diffusion 3
Stable Diffusion 3 is Stability AI's most advanced text-to-image model, using a novel Multimodal Diffusion Transformer (MMDiT) architecture. It features dramatically improved text rendering, better prompt adherence, and higher quality image generation compared to previous versions. SD3 comes in multiple sizes and is available as open weights, enabling local deployment and fine-tuning for specialized image generation applications.
View Stability AI profile →Stable Diffusion 3.5 Large
Stable Diffusion 3.5 Large is Stability AI's open-source image generation model using an innovative MMDiT (Multimodal Diffusion Transformer) architecture. It generates high-quality images from text descriptions with excellent prompt following and composition capabilities. As an open-weight model, it can be self-hosted, fine-tuned, and integrated into custom applications without API costs. The model has spawned a massive ecosystem of community-built tools, LoRA adapters, and specialized models for various art styles and use cases.
View Stability AI profile →Key Differences: Stable Diffusion 3 vs Stable Diffusion 3.5 Large
Stable Diffusion 3 has 8B parameters vs Stable Diffusion 3.5 Large's 8B, which affects inference speed and capability.
When to use Stable Diffusion 3
- +Your use case involves image generation, art creation, design
When to use Stable Diffusion 3.5 Large
- +Your use case involves open source image generation, customization, fine-tuning
The Verdict
Stable Diffusion 3.5 Large wins our head-to-head comparison with 2 out of 5 category wins. It's the stronger choice for open source image generation, customization, fine-tuning, though Stable Diffusion 3 holds an edge in image generation, art creation, design.
Last compared: March 2026 · Data sourced from public benchmarks and official pricing pages