Stable Diffusion 3.5 Large

Released
2024-10-22
Last refreshed
2026-05-09
Status
Researched 184d ago
Open weightsCommercial use: restrictedMultimodal
Specifications
Released
2024-10-22
Parameters
8.1B
Architecture
Diffusion Transformer
Specialization
image-generation
Openness
Open weights
Weights
Available
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 HuggingFace

About

Stable Diffusion 3.5 Large by Stability AI. 8.1B-parameter flagship of the SD 3.5 family, delivering superior image quality and prompt adherence at 1-megapixel resolution. Powers the Stable Image Ultra API. Released October 22, 2024 under Stability AI Community License.

Providers

No active provider routes are tracked for this model.

Deprecated provider routes(1)

ProviderStatusCatalog ID
Microsoft Foundry
DeprecatedRetired July 31, 2026
stable-diffusion-3.5-large

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.

Benchmark scores(1)

Scores are benchmark-specific and are direction-aware: the same numeric gap can mean very different outcomes across suites. Use the leaderboard context and this model's provider route to decide whether the winning margin is meaningful for your workload.
BenchmarkScoreVersionEvaluationSource
LMArena Text-to-Image Arena
938text_to_image overall 2026-10-26Observed 2026-10-27
Configuration: Stable Diffusion 3.5 Large
Harness: LMArena blind pairwise human votes, Bradley-Terry
Evaluator: LMArena
Confidence: confirmed
Notes: LMArena text to image leaderboard, overall category, published 2026-10-26 (HF lmarena-ai/leaderboard-dataset @a467e6b9, latest split). Board entry 'Stable Diffusion 3.5 Large': rank 81 of 82, Arena Score 938.3 (95% CI 933.9-942.8), 23396 votes. Source: LMArena (CC BY 4.0). Retrieved 2026-10-27.
Source

Source: LMArena (lmarena.ai), CC BY 4.0

Migration checks

No linked migration route is available for this model yet.