Comfy has released Comfy Router, a cloud service providing a unified API for image, video, 3D and audio generation.

Platform overview

The platform integrates multiple models and lets developers choose providers based on price and queue availability.

Integration and available models

Developers install the Comfy SDK and register an API key from Comfy Developer Platform to authenticate requests and manage workspaces.

Available models currently include Seedance 2.5, Nano Banana Pro, MiniMax H3, GPT Image 2, Kling, and Black Forest Labs.

Routing and execution

After listing models, the router lets developers select a provider based on price or queue time. Switching models is accomplished by replacing the model identifier string in application code.

If the chosen host becomes unavailable, the API returns an error instead of silently failing over, preserving control over costs and region.

Because generation may take many minutes, submit returns a task ID immediately, and the queue manager processes retries and network errors automatically.

Billing, idempotency and data retention

Billing uses a shared credit balance in each Comfy workspace; there are no subscriptions and charges apply per API request only.

Balance is validated before request processing; if funds are insufficient, the system returns HTTP error 402, avoiding wasted compute.

If a connection fails during submission, resending the same API key and parameters returns the current task status rather than duplicating charges.

Uploaded input assets and generated outputs are removed from cloud storage exactly after 24 hours to limit retained data.

Operational notes

The current implementation requires manual provider and price tracking on Comfy's site, which leaves routing and cost optimization to developers.