Stable Image Ultra

Released
2024-09-18
Last refreshed
2026-05-09
Status
Researched 184d ago
ProprietaryCommercial use: restrictedMultimodal
Specifications
Released
2024-09-18
Architecture
Diffusion Transformer
Specialization
image-generation
Openness
Proprietary
License
ProprietaryRestricted
Weights
Not released
Code
Unknown
Created by
Stability AI

Open-source generative AI models.

London, United Kingdom
Founded 2020
Website
Pricing

No tracked provider pricing is available yet.

Links
Website

About

Stability AI's premium Stable Image Ultra API product, powered by the 8B-parameter Stable Diffusion 3.5 Large model. Delivers highest quality output including photorealistic images, complex scenes, and precise prompt following at $0.08 per image. Available via Stability AI API and AWS Bedrock.

Providers

No active provider routes are tracked for this model.

Deprecated provider routes(1)

ProviderStatusCatalog ID
Microsoft Foundry
DeprecatedRetired July 31, 2026
stable-image-ultra

Available via routers & gateways(5)

LiteLLM

Gateway

Open-source Python SDK and proxy server that unifies 100+ LLM APIs behind a single OpenAI-compatible interface, with load balancing, cost tracking, and configurable failover.

Free OSSMicrosoft Foundry

Portkey

Gateway

Production AI gateway routing to 1,600+ LLMs with failover, load balancing, caching, and guardrails; MIT-licensed open-source core is self-hostable. Now part of Palo Alto Networks as Prisma AIRS AI Gateway.

SubscriptionMicrosoft Foundry

Azure AI Foundry Model Router

Router

Microsoft Azure AI Foundry's native model router that uses a trained ML model to route each prompt in real time to the optimal Azure-hosted model, with Balanced/Cost/Quality mode selection and automatic failover.

Passthrough + feeMicrosoft Foundry

Helicone

Gateway

Observability-first AI gateway with routing, caching, rate limiting, and request tracing; Apache-2.0 open-source platform with a managed hosted tier for logging and analytics.

SubscriptionMicrosoft Foundry

Kong AI Gateway

Gateway

Multi-LLM AI gateway built on Kong Gateway 3.x, adding semantic routing, load balancing, guardrails, and MCP traffic analytics as plugins over Kong's existing API management platform.

SubscriptionMicrosoft Foundry

Capabilities

Multimodal

Benchmark peer barsfor Coding

No task-mapped benchmark peers are available for this model yet.

Migration checks

No linked migration route is available for this model yet.