Stability AI
Stable Diffusion 3.5 Large
An open-weights model for local implementation or specialized fine-tuning on internal data.
Our editorial assessment, based on the public sources listed below. Last reviewed .
- Task rank
- #17
- Tier
- A
- Score
- 72.1
Strengths
- Open-weights model allows for self-hosting, providing greater privacy and control.
- Enables deep fine-tuning on custom datasets for specialized outputs.
- A preferred choice for companies requiring local or customized implementations.
Considerations
- Requires technical expertise to self-host and fine-tune effectively.
- Performance and speed are dependent on the user's local hardware.
Price
Free (self-hosted).
Shown for reference — price is not part of the score.
Score breakdown
- Performance
- 74.0
- 55% of score
- Reputation
- 73.0
- 35% of score
- Recency
- 58.0
- 10% of score
The overall score combines these sub-scores using the weights shown. How we score →
Verification status
Each field carries its own re-verification date. Amber means older than 90 days — treat those figures as stale until re-checked.
- Pricing
- Benchmark
- Reputation
- Feature list
Checked against the sources listed below.
Sources
- Stability AI — HubSpot scales image generation 150% with SD3.5 Large in Amazon Bedrock (opens in a new tab)Accessed:
- G2 — State of AI Image Generation in 2026 (2,000+ reviews, 7 vendors) (opens in a new tab)Accessed:
- www.techtarget.com (opens in a new tab)Accessed:
- Stability AI in Lenovo Creator Zone | Stability AI (opens in a new tab)Accessed:
- fast.io — 8 Best AI Image Generators in 2026 (opens in a new tab)Accessed:
Show 13 more sources
- Best AI Image Generator 2026: GPT Image 2 vs 4 Rivals (opens in a new tab)Accessed:
- 11 Best AI Image Generators of 2026 (opens in a new tab)Accessed:
- Coursiv — Top AI Image Generators 2026 Use-Case Guide (opens in a new tab)Accessed:
- The Best AI Image Generators in 2026 | Hedra (opens in a new tab)Accessed:
- Semrush — The 9 Best AI Image Generators of 2026 (opens in a new tab)Accessed:
- Stability AI homepage (opens in a new tab)Accessed:
- bestfreeaiwebsites.com (opens in a new tab)Accessed:
- 15 Best AI Image Generation Models in 2026 (opens in a new tab)Accessed:
- Jim MacLeod — The Best AI Image Tools for 2026 (opens in a new tab)Accessed:
- DataNorth AI - Top 10 AI Tools 2026 (opens in a new tab)Accessed:
- The 12 Best AI Image Generators 2026 (Free and Paid) | EXPERTE.com (opens in a new tab)Accessed:
- Best AI Image Generator 2026: I Tested 10 Tools to Find Out - Alici.AI (opens in a new tab)Accessed:
- Zerotwo AI - 7 Tools Ranked and Compared (opens in a new tab)Accessed:
Alternatives in Image Generation
- #1GPT-ImageSScore 89.9OpenAI's image model that reasons through requests to maintain spatial logic, available via ChatGPT and API.
- #2Nano Banana ProSScore 89.3An AI image generator that excels at creating realistic images with consistent characters.
- #16OpenArtAScore 74.3An all-in-one workspace that combines multiple image models with editing, references, and character workflows.