Stable Diffusion 3 is gone.Verified 2026-07-12

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Stable Diffusion 3

Experience the cutting edge of generative image AI.

Stable Diffusion 3 is Stability AI's latest flagship image generation model, offering superior quality, prompt adherence, and multi-subject capabilities. It is available through various API services and integrated into Stable Assistant.

Key Features:
  • Flagship image generation (Stable Image Ultra, Stable Diffusion 3.5 Large)
  • Image upscaling (Creative, Fast, Conservative)
  • Image editing (Erase, Inpaint, Outpaint, Remove Background, Search and Replace)
  • Image control (Sketch, Structure, Style Guide, Style Transfer)
  • 3D model generation (Stable Fast 3D, Stable Point Aware 3D)
Pros
  • Developers building image-centric applications requiring high-quality generation and editing.
  • Enterprises needing custom, on-brand asset creation at scale.
  • Creative professionals seeking precise control over image generation workflows.
Cons
  • API usage is credit-based, which can accumulate costs for heavy users.
  • Some services are being deprecated (Stable Video API, Stable Diffusion 1.6 API) requiring migration for existing users.
  • The most advanced models are primarily accessible via API or enterprise solutions, not a simple web interface.
Categories:
Image Generation & EditingAI InfrastructureDesign & Creative
Tags:
text-to-imageimage editingimage upscaling3D generationaudio generationAPIenterprise solutionsopen-source
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Trust Signals

  • Founded

    2026

  • Team Size

    large
Notable Customers
HubSpotMercado LibreStride LearningElectronic ArtsUMG
Tech Details
Platforms
webapi

  • AI Model

    Stable Diffusion 3.5 Large, Stable LM 2 12B, Stable Audio 2.5/3.0, Stable Fast 3D
Open Source
Yes
Support
Channels
emailsupport tickets
Company

  • Name

    Stability AI Ltd

Stability AI is unlocking the power of open-source generative AI to expand human creativity. We build world-class models that are accessible, adaptable, and designed to empower creators, developers, and enterprises everywhere.

FAQ

How do I get an API key for Stable Diffusion 3?

You can get an API key by creating an account on the Stability AI Developer Platform and then generating a key from your account's page. More information is available in the getting started documentation.

Can I use the outputs generated by Stable Diffusion 3 for commercial purposes?

Yes, outputs generated by Stability AI APIs can be used for commercial purposes, provided they do not violate any copyrights. This is detailed in the Stability AI Terms of Service.

What are the pricing changes for Stability AI API services?

Effective August 1, 2025, Stability AI is increasing pricing for select API services. For example, Creative Upscaler will cost 60 credits, and Stable Fast 3D will cost 10 credits. Stable Video API and Stable Diffusion 1.6 API will be discontinued on July 24, 2025.

What is Stable Assistant and what models does it use?

Stable Assistant is a chatbot developed by Stability AI that integrates their latest image, audio, and 3D generation and editing technologies. It is powered by Stable Image Ultra, Stable Audio 2.0, Stable Fast 3D, and the Stable LM 2 12B language model.

How do credits work for Brand Studio plans?

Every time you generate or edit an image in Brand Studio, credits are used. Different operations require varying amounts of credits. Credits are refreshed monthly for Core plans and annually for Enterprise plans, with unused monthly credits not rolling over. Additional credit packs can be purchased.

Use Cases
  • Developers building image-centric applications requiring high-quality generation and editing.
  • Enterprises needing custom, on-brand asset creation at scale.
  • Creative professionals seeking precise control over image generation workflows.
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