Shotcraft
Image generation

Stable Image Ultra

Stability's highest-quality hosted text-to-image service on its developer platform, positioned above Stable Image Core and updated to run on the Stable Diffusion 3.5 Large base.

An image model by Stability AI · read 2026-08-14 · sourcing low

Weights
Not released
API
Yes
Commercial use
Permitted subject to conditions

It is a managed endpoint rather than a downloadable model, and sits alongside Stability's hosted edit tools (erase, inpaint, outpaint, upscale).

Commercial use — Permitted subject to conditions

Hosted service under Stability's platform terms; the Community License revenue threshold applies to self-hosted weights, not to API usage.

  • Free only below a revenue threshold. Hosted service under Stability's platform terms; the Community License revenue threshold applies to self-hosted weights, not to API usage

The conditions above were extracted from the licence notes recorded during research, and each one shows the sentence it came from so you can check the reading. Read the licence before you rely on any of this. Nothing on this page is legal advice, and this site does not tell you a model is cleared for commercial use.

Specification

Vendor figures, read 2026-08-14Read from Stability AI's own documentation on 2026-08-14. Vendors change these between model versions without announcing it, so check theirs before you commit a shot to a number. Sourcing for this entry is thin. Treat it as a starting point and verify before relying on any figure. Check the vendor's current documentation

What it takes in
text, image
What it makes
image
Maximum resolution
not established
Aspect ratios
not established
Controls
image-to-image, inpainting, outpainting, style-reference
Weights
Not released
API
Yes
Pricing
not established
Released or updated
not established

Maximum resolution, supported aspect ratios and pricing are not established here. That means no page we could retrieve stated them, not that the model lacks them.

Strengths

  • Managed access to Stability's best image quality without GPU ops
  • Sits in a suite with erase/inpaint/outpaint/upscale endpoints
  • Simple credit-based billing model

Weaknesses

  • Pricing and resolution could not be verified — Stability's platform pages are JS-rendered and returned no content to our fetcher
  • No 2026 flagship refresh announced
  • Loses on quality benchmarks to FLUX.2, Nano Banana Pro and GPT Image 2 per third-party comparisons

Best for

Where the sources disagree

Recorded rather than resolved. Picking the tidier number would hide the fact that the vendor's own pages do not agree.

What to understand before using it

Explainers naming the mechanisms this model's own documentation mentions.

MCP servers that front Stability AI

Servers in the media MCP directory whose own description or homepage names this vendor. Absence of a server here is not evidence that none exists: most publish no tool list at all.

1 further server name Stability AI with lower confidence and are not listed, because a server naming a vendor may be using it for text rather than media.

See it from the vendor

Shotcraft hosts no sample output. Judging a model means watching its own showreel with your own eyes, and a clip re-hosted here would be a clip we chose.

Nearby in the directory

Stable Diffusion 3.5 Large

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FLUX.1 Kontext [pro] / [max]

Instruction-driven image editing models from the FLUX.1 generation (2025), still exposed as live /flux-kontext-pro and /flux-kontext-max endpoints. Th

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Sources

Read on 2026-08-14. A source that has changed since then will not be reflected here until the next pass.