SD3 Medium T5

About

SD3 Medium T5 is a SD3 community image model available on the Sogni Supernet — generate credit-free under fair use, no GPU or setup required. Stable Diffusion 3 is a text-to-image base model from Stability AI with improved prompt understanding, better multi-subject composition, stronger typography, and more efficient performance than earlier Stable Diffusion versions. ⚠️ Important Note about the 1024-T5 version: This model needs to run from an external hard drive and requires at least 48 GB of RAM. Running it from your Mac’s internal drive can cause a memory overflow and crash your system. Before installing, make sure Sogni is set to use an external drive by going to Sogni > Settings > Storage in the top menu.

Run it credit-free in the Sogni app, or call it by model id via the API.

Pricing

SD3 Medium T5 is included on every Sogni plan — generate credit-free under fair use, alongside 100+ other models, from a flat monthly price.

API

One Sogni API key reaches every model on the Supernet — call SD3 Medium T5 by id.

import { SogniClient } from '@sogni-ai/sogni-client';

const client = await SogniClient.createInstance({
  appId: crypto.randomUUID(),
  apiKey: process.env.SOGNI_API_KEY,
  network: 'fast',
});

const project = await client.projects.create({
  type: 'image',
  modelId: 'coreml-stable-diffusion-3-medium-1024-t5',
  positivePrompt: 'a slothicorn surfing a wave of liquid paint, studio lighting',
  numberOfMedia: 1,
});

const [url] = await project.waitForCompletion();
console.log(url); // result link — download within 24h

# coreml-stable-diffusion-3-medium-1024-t5 is addressable by id via the JavaScript SDK (see the JavaScript tab).
# The REST workflow API routes this family through its flagship alias instead:

curl https://api.sogni.ai/v1/creative-agent/workflows \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $SOGNI_API_KEY" \
  -d '{
    "input": {
      "title": "First render",
      "steps": [{
        "id": "step1",
        "toolName": "generate_image",
        "arguments": { "prompt": "a slothicorn surfing a wave of liquid paint, studio lighting" }
      }]
    },
    "confirm_cost": true
  }'

Addressable by id via the JavaScript SDK; the REST workflow API routes this family through its flagship alias. Full reference at docs.sogni.ai.