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runway

Commercial usePart of the Runway API family — browse all models →
⚡ Run with API

Step into the future of content creation with the Runway API, powered by Runway AI's groundbreaking Gen-4 architecture. Available through ModelFold, this toolkit transforms ideas into stunning videos using the Runway Gen 4 Turbo API. Whether you're generating from text or converting images to dynamic footage, Runway AI image to video capabilities deliver professional results instantly.

Pricing: 15 credits video, regardless of duration.

Playground

Pre-filled from the model spec — run it as-is, or tweak any field first.

Ready
Prompt

Descriptive text that guides the AI video generation. Be specific about subject, action, style, and setting.

Reference image

Optional reference image. When provided, the video animates this image and its aspect ratio is used.

Duration

Video length. 10-second videos cannot use 1080p.

Quality

Video resolution. 1080p is only available for 5-second videos.

Aspect ratio

Required for text-to-video; ignored when an image is provided.

Balance: —Estimated reservation15 credits(estimated before generation; actual charge shown on completion)
Result
History

Sample output for this variant — press Run to generate your own.

Rate card
runway15 credits video

Flat price per run — it does not change with duration.

Quick start
POST/v1/videos/generations
curl https://modelfold.ai/v1/videos/generations \
  -H "Authorization: Bearer $MODELFOLD_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"runway","prompt":"...","resolution":"720p","duration":5}'