Leonardo AI vs. Stable Diffusion
Which ai image generation tool is better? Comprehensive side-by-side analysis.
Comparison Winner
Leonardo AI
Professional AI creative suite with Phoenix 2.0 — acquired by Canva
Image Quality93 %
Prompt Adherence92 %
Pricing / Value94 %
Commercial Rights99 %
Editing (Inpainting)97 %
API & Integration97 %
toolzoo.io
TEST RESULT
GREAT (2.0)
89 of 100
Stand 03/2026
vs.
Stable Diffusion
Open-source AI image generation with SD 3.5 and Stable Assistant
Image Quality88 %
Prompt Adherence87 %
Pricing / Value89 %
Commercial Rights94 %
Editing (Inpainting)92 %
API & Integration92 %
toolzoo.io
TEST RESULT
GREAT (2.2)
84 of 100
Stand 03/2026
Feature
Overview
Overview
Score
89%
84%
Founded
2022
2022
Headquarters
Sydney, Australia
London, UK
Free Tier
Yes
Yes
Starting Price
$12/mo
Free
Pricing Model
SUBSCRIPTION
CREDITS
GDPR & Privacy
GDPR & Privacy
GDPR Compliant
Yes
No
Server Location
US, EU
US, EU
EU Server Available
Yes
Yes
Model & Performance
Model & Performance
Latest Model
Phoenix 2.0
SD 3.5 Large/Turbo/Medium/Flash
💰 Pricing Plans
💰 Pricing Plans
Free Plan
Free (150 tokens/day)
Free (open source, self-hosted, <$1M rev)
Plus Plan
$12/mo Apprentice (8,500 tokens/mo)
$19/mo Stable Assistant Pro (1,900 credits)
Pro Plan
$30/mo Artisan (25,000 tokens, API, 15 jobs)
$49/mo Plus (5,500 credits) | $99/mo Premium (12K)
Enterprise Plan
$60/mo Maestro (60,000 tokens, 50 model trains)
Custom Enterprise license (>$1M revenue)
📱 Platform Availability
📱 Platform Availability
Web App
Yes
Yes
Mobile App (iOS/Android)
Yes
No
API Available
Yes
Yes
🎨 Image Generation
🎨 Image Generation
Text → Image
Yes
Yes
Image → Image
Yes
Yes
Inpainting
Yes
Yes
Outpainting
Yes
Yes
Max Resolution
5MP (2048×2048+)
2048×2048
Style Reference
Yes
Yes
ControlNet / Pose Control
Yes
Yes
IP-Adapter (Character)
Yes
Yes
Seed Control
Yes
Yes
Custom LoRA Upload
Yes
Yes
Face Consistency
Yes
Yes
AI Upscaling
Yes
Yes
Community Models
Yes
Yes
📋 Rights & Licensing
📋 Rights & Licensing
Commercial License
Yes
Yes
Watermark-free Output
Yes
Yes
Ready to choose?
Click through to any provider to get started, or read their full review.