Stability AI

Stable Diffusion 4 Ultra

The king of open-source fine-tuning.

complete pipeline controllocal hostingvast community plugin support

Where it ranks today

Best for / Not great for

Best for
  • custom model training
  • game asset pipelines
  • private hardware deployment
Not great for
  • turnkey user experience
  • no-code creative workflows

Why it ranks here

For developers and studios who require total control over their stack, SD 4 Ultra is the only choice that allows for deep architectural modification and fine-tuning.

30-day trend

Score breakdown

Search trends88
Benchmarks94
Developer buzz99
News mentions85

Pricing

API: $0.00 in · $0.00 out per 1M tokens · Consumer: $0.00/mo

Pricing plans

Popular
Personal
Self-hosted power
Free
  • unlimited local generation
  • community models
  • full source code
Download
Studio
Commercial license
$150/mo
  • professional support
  • enterprise API
  • compliance certification
Buy License
Compare with another modelHow is this score calculated? →Snapshot 2026-11-03