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Pricing: $0.06/image. Endpoint: POST /v1/models/black-forest-labs/flux-1-1-pro-ultra/runs.
Ultra-resolution variant of FLUX 1.1 [pro] with 4MP+ outputs and richer detail. Drop-in upgrade when the standard FLUX 1.1 [pro] resolution is the bottleneck.

Overview

Pricing

  • Base price: $0.06/image
  • Note: per image, ultra resolution

FLUX 1.1 [pro] Ultra API

Endpoint: POST /v1/models/black-forest-labs/flux-1-1-pro-ultra/runs

Run the model

Python

Node.js

cURL

Request parameters

Input schema

Output schema

Callback payload

When you provide a callback_url, Runflow POSTs to it once the run reaches a terminal state.
  • Retries: 3 attempts with exponential backoff (1s, 2s). Retries on 5xx / network errors only.
  • Headers: Runflow-Request-Id is always sent. Runflow-Signature is sent if a signing secret is configured.

Additional Resources

Browse all models

Browse the catalog.

Run lifecycle

Callbacks, polling, statuses.

Callbacks

Handle async results.

Pricing

How requests bill out.