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Photo AI vs Stable Diffusion

Pricing, features, platforms and who each one suits — side by side.

PPhoto AIFrom $9/moVisit site
SStable DiffusionFreemiumVisit site
VS
P

Choose Photo AI if…

  • you're in its core audience: social media creators, professionals needing headshots
S

Choose Stable Diffusion if…

  • you want a free plan to start with
  • you need an API to build on
  • you work on Self-hosted
  • you're in its core audience: developers, researchers

Side by side

Feature Photo AI Stable Diffusion
Pricing modelPaidFreemium
Starting price$9/mo—
Free plan
Free trial
API
Open source
Trains AI on your content—Yes, unless you opt out
Data retention—Kept as long as reasonably necessary, including while account is active
PlatformsWebWeb, API, Self-hosted
CategoryAI HeadshotsImage Generators
Company—Stability AI Ltd · United Kingdom
Full feature lists

P Photo AI

  • AI twin trained from 5+ selfies in about 2 minutes
  • 174+ photo packs such as dating, LinkedIn and Halloween
  • Several image and video models, including Nano Banana 2 and Kling 3.0
  • AI video generation with sound
  • Custom prompts and remixing of any photo
  • Magic upscaler plus edit, crop and zoom-out tools
  • Shopify clothing try-on
  • MCP connection for ChatGPT, Claude and Cursor

S Stable Diffusion

  • Text-to-image with the Stable Diffusion 3.5 suite
  • SD 3.5 Flash and Turbo variants for faster, cheaper generation
  • SDXL 1.0 available from 0.9 credits per image
  • Platform API with credit-based billing
  • Self-hosted deployment under a license
  • Custom model training on the Enterprise plan

What you'd pay

The cheapest plan that fits, per month, billed yearly where the plan offers it.

Photo AI

Starter$19/mo or $9/mo billed yearly ($99/yr)
Pro$49/mo or $29/mo billed yearly ($349/yr)
Max$99/mo or $49/mo billed yearly ($599/yr)
Ultra$199/mo or $99/mo billed yearly ($1,199/yr)

Stable Diffusion

Community LicenseFree
API credits$0.01 per credit
Enterprise LicenseCustom

Strengths and limitations

Photo AI

  • Annual billing roughly halves the price, with Starter at $9/mo
  • Many image and video models available in one subscription
  • 174+ ready-made photo packs
  • Commercial use license from the Pro plan
  • No free plan or free trial
  • Starter is limited to personal use, slow processing and low quality
  • Video generation and the upscaler require the Max plan ($49/mo yearly) or higher

Stable Diffusion

  • Free Community License for organizations under $1M annual revenue
  • 25 free API credits for new accounts
  • Choice of model sizes at different per-image costs
  • Organizations above $1M annual revenue need a custom-priced Enterprise License
  • API is pay-per-credit, with no flat monthly plan listed

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Facts from each vendor's public pages, prices checked Oct 26, 2026. Editorial policy