The quick read
- Check identity stability, geometry, contact between objects and changes between frames.
- Measure how many revisions are needed before the shot serves its purpose.
Write a common shot brief
Specify subject, action, camera movement and ending state. Use equivalent references where permitted and supported. Keep the scene focused enough that you can identify why an output succeeds or fails.
Watch the entire result
Check identity stability, geometry, contact between objects and changes between frames. A beautiful opening still can conceal an unusable ending. Place the clip in a simple edit to assess transitions and pacing.
Choose by usable footage
Measure how many revisions are needed before the shot serves its purpose. Include current output formats, available controls and usage conditions. Different shot types may favour different workflows, so avoid generalising from one scene. The practical winner is the process that produces footage you can actually use, with a clear account of its constraints. This article provides a comparison method rather than fabricated scores or claims of hands-on testing.
Sources & notes
An editorial decision framework, not a scored benchmark or hands-on test.
runwayml.com — official reference
lumalabs.ai — official reference
Sources reviewed for the September 2026 launch edition.