All model profiles

Model grammar profile · Gen-4

Runway Gen-4
Image-led, positively phrased motion direction

Use one simple scene and physically explicit action. For image-to-video, the image establishes appearance; prompt chiefly describes motion, environmental response, and camera behavior.

Compile for Runway Official docs

Recommended sentence order

01subject→
02action→
03context→
04cinematography→
05style

Negative prompt policy

Use exclusions the way this surface expects.

Rewrite exclusions as positive desired states. For example: ‘the camera remains completely locked’ instead of ‘no camera motion’.

Typed parameters

Duration2 · 5 · 10
Aspect ratio16:9 · 9:16 · 1:1 · 4:3 · 3:4 · 21:9
Image reference URLUser supplied

Reliability constraints

  • Current Gen-4 image-to-video requires an input image.
  • Avoid multiple scene changes or contradictory actions inside one short clip.
  • Do not target retired Gen-3 models without version-specific availability validation.

Source material

Runway Gen-4 prompting guide Runway Dev API

Next profile

LTX Video 2.5