LLM Reference

Stable Image Ultra

Released
2024-09-18
Last refreshed
2026-05-16
Status
Researched 48d ago
ProprietaryCommercial use: conditionalMultimodalVision

Stable Image Ultra is worth evaluating for vision when its provider route and context window match the workload.

Use it for

  • Teams evaluating vision
  • Buyers comparing 1 tracked provider route

Do not use it for

  • Strict JSON or tool-calling flows
Specifications
Released
2024-09-18
Architecture
Diffusion Transformer
Specialization
image-generation
Openness
Proprietary
License
ProprietaryCommercial use: conditional
Created by
Stability AIStability AI

Open-source generative AI models.

London, United Kingdom
Founded 2020
Website
Pricing
Output / 1M
-
Input / 1M
-

Cheapest of 1 route · Microsoft Foundry

Providers(1)
Microsoft Foundry
View 1 provider route
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.

Stable Image Ultra is a proprietary model in the Stable Image family. The structured metadata tracks multimodal input. This page tracks provider routes through Microsoft Foundry. No headline benchmark score is tracked for Stable Image Ultra yet.

Top use-case fit

Vision

Included by capability and metadata signals in the decision map.

Provider price ladder

Compare API pricing across 1 providers for input and output tokens, batch, and cached reads when available.

ProviderInput / 1MOutput / 1MRoute
Microsoft Foundry--
ServerlessPartial

Available via routers & gateways(5)

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.

PassthroughMicrosoft Foundry

Helicone

Gateway

Observability-first AI gateway with routing, caching, rate limiting, and request tracing; Apache 2.0 open-source core 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

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, semantic caching, and guardrails; Apache 2.0 core is fully self-hostable with the complete feature set.

SubscriptionMicrosoft Foundry

Capabilities

Multimodal

Benchmark peer barsfor Vision

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

Migration checks

No linked migration route is available for this model yet.