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Our pickReviewed

Best image and video generation API

fal.ai is our pick for adding image and video generation to an app: many top models behind one API, billed per output. Replicate is best for running specific open-source models or fine-tuning, Runway for producing video yourself, and ComfyUI for free local generation.

Editorial picks

#1 pickVerified

fal.ai

One API for many leading image and video models, billed per output, with on-demand GPUs when you need more.

Alternative 1Verified

Replicate

Run thousands of models via API, billed by run time or output. Best for a specific open model or fine-tuning.

Alternative 2Verified

Runway

A creator-focused AI video platform with credit plans. Better for producing videos than embedding generation in an app.

Free tierfrom $15/moVisit Runway ↗
Open-source pickVerified

ComfyUI

GPL-licensed, node-based workbench for image and video generation on your own GPU. No per-image cost.

Free tierOpen sourcefrom $20/moVisit ComfyUI ↗

Editorial picks are never paid for. How we make money.

How we picked

  • Model selection
  • Speed
  • Simple per-output pricing
  • Developer experience

Prices are checked against each vendor's official pricing page. Our methodology.

FAQ

How much does an AI-generated image cost via API?

It depends on the model and resolution. fal.ai and Replicate publish per-image or per-second prices per model on their pricing pages; check the specific model you plan to use.

Can I run image models locally for free?

Yes, with ComfyUI on a capable GPU. Your cost is your hardware and electricity.