Runway API v1 updates:

  • New POST /images/create — unified image generation endpoint supporting Nano Banana, Nano Banana Pro, Gen-4, and Gen-4 Turbo models
  • Nano Banana and Nano Banana Pro support image references of famous people and minors
  • Explore mode for Runway Unlimited plan accounts — generate images without using credits

Example 1: Nano Banana Pro with reference image via POST /images/create

imageAssetId1:

curl --location 'https://api.useapi.net/v1/runwayml/images/create' \
--header 'Authorization: Bearer user:12345-…' \
--form 'text_prompt="Make him wear clown hat and stick his tongue out making silly face"' \
--form 'aspect_ratio="9:16"' \
--form 'num_images="1"' \
--form 'model="nano-banana-pro"' \
--form 'imageAssetId1="user:12345-runwayml:…"' \
--form 'resolution="1K"'

Result:

Example 2: Nano Banana Pro with reference image via POST /images/create

imageAssetId1:

curl --location 'https://api.useapi.net/v1/runwayml/images/create' \
--header 'Authorization: Bearer user:12345-…' \
--form 'text_prompt="Restore this photo, add colors"' \
--form 'aspect_ratio="3:4"' \
--form 'num_images="1"' \
--form 'model="nano-banana-pro"' \
--form 'imageAssetId1="user:12345-runwayml:…"' \
--form 'resolution="2K"'

Result: