TEXT → VIDEO · Runway

Runway Gen 4.5

Runway Gen 4.5 is a state-of-the-art model recognized for superior motion quality, prompt adherence, and visual fidelity.

High censorship

PRICE0.12 creditsper second

AVG TIME—estimate

OUTPUTvideoasync · poll

Open in playground

Inputs

promptrequired · text

imageoptional · Image — artifact id or https URL

params.quality1080p · default 1080p

params.duration5 | 10 · default 5

params.aspect_ratio1:1 | 16:9 | 9:16 · default 1:1

Monthly estimate

seconds per month

1,000 × 0.12 credits120.00 credits

Per second at the default quality; other qualities are priced on the playground.

curl https://platform.4i.app/api/v1/run \
  -H "Authorization: Bearer $FOURI_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "service": "runwayml/runway-gen-4-5",
    "input": {
      "prompt": "Describe the shot…"
    },
    "params": {
      "quality": "1080p",
      "duration": "5"
    }
  }'

# Video runs return "status": "running".
# Poll until it is "succeeded":
curl https://platform.4i.app/api/v1/runs/run_… \
  -H "Authorization: Bearer $FOURI_KEY"

Every output has an artifact_id. Pass it as input to any compatible service.

Get your API key →