models/RunDiffusion/Juggernaut Flux Lightning
RunDiffusion

Juggernaut Flux Lightning

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Juggernaut Lightning Flux by RunDiffusion provides blazing-fast, high-quality images rendered at five times the speed of Flux. Perfect for mood boards and mass ideation, this model excels in both realism and prompt adherence.

MODALITIES
image

Juggernaut Flux Lightning (rundiffusion-fal/juggernaut-flux/lightning) is a image model from RunDiffusion. Pricing via AIgateway: $0.0060 per megapixel. Call it via https://api.aigateway.sh/v1/images/generations — set model="rundiffusion-fal/juggernaut-flux/lightning".

model · rundiffusion-fal/juggernaut-flux/lightning

Use this model

model: rundiffusion-fal/juggernaut-flux/lightning
curl https://api.aigateway.sh/v1/images/generations \
  -H "Authorization: Bearer $AIGATEWAY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"rundiffusion-fal/juggernaut-flux/lightning","prompt":"a serene cyberpunk city at dusk"}'

Capabilities

Text to image

Pricing

Per megapixel$0.0060
You pay pass-through pricing.
See API example →CompareAPI referenceSee usage ranking →

Collections

More image models →More from RunDiffusion →Frontier models →Free-tier models →
API schema

Call Juggernaut Flux Lightning from any OpenAI SDK

POST https://api.aigateway.sh/v1/images/generations·Content-Type: application/json·Auth: Bearer sk-aig-...

Request body

json
{
  "model": "rundiffusion-fal/juggernaut-flux/lightning",
  "prompt": "A cyberpunk cat at sunset, cinematic lighting",
  "n": 1,
  "size": "1024x1024",
  "response_format": "url"   // or "b64_json"
}

Response

json
{
  "created": 1776947082,
  "data": [
    { "url": "https://media.aigateway.sh/img/abc123.png" }
    // or { "b64_json": "iVBORw0KGgoAAAANSUhEU..." }
  ]
}

Quickstart

from openai import OpenAI
client = OpenAI(base_url="https://api.aigateway.sh/v1", api_key="sk-aig-...")

r = client.images.generate(
    model="rundiffusion-fal/juggernaut-flux/lightning",
    prompt="a cyberpunk cat at sunset",
    size="1024x1024",
)
print(r.data[0].url)

Errors

401authentication_errorInvalid or missing API key
402insufficient_creditsWallet empty (PAYG only)
404not_foundUnknown model or endpoint
429rate_limit_errorOver per-minute limit — see Retry-After header
500server_errorUpstream provider failed (retryable)
503service_unavailableUpstream saturated (retryable)
Full docs →API reference →OpenAPI spec →llms.txt →

Frequently asked questions

What is Juggernaut Flux Lightning?
Juggernaut Lightning Flux by RunDiffusion provides blazing-fast, high-quality images rendered at five times the speed of Flux. Perfect for mood boards and mass ideation, this model excels in both realism and prompt adherence. It is a image model from RunDiffusion, accessible via AIgateway's OpenAI-compatible API at slug rundiffusion-fal/juggernaut-flux/lightning.
How much does Juggernaut Flux Lightning cost via AIgateway?
Pass-through pricing. See the pricing panel on this page for exact rates.
How do I call Juggernaut Flux Lightning from my code?
Point the OpenAI SDK at https://api.aigateway.sh/v1 with your AIgateway key and set model to "rundiffusion-fal/juggernaut-flux/lightning". The request and response shapes match OpenAI exactly.
Does Juggernaut Flux Lightning support streaming, tool calling, vision, and JSON mode?
Streaming — no. Tool calling — no. Vision — no. JSON mode — no. Prompt caching — no.
Can I bring my own RunDiffusion API key (BYOK)?
Yes. Attach a RunDiffusion key in your AIgateway dashboard and this model flips to pass-through — you pay RunDiffusion directly and AIgateway adds no platform fee on those calls.