# Luma argues Runway falls short for finishing full AI video campaigns

> Original title: Runway Limitations: What It Cannot Do

- Source: Luma AI News
- Published: 2026-11-08T05:00:00.000Z
- Bad Influence: https://badinfluence.news/items/b9golchxkveidp8v2tiv8h0wi
- Original: https://lumalabs.ai/news/runway-limitations

## Summary

Luma AI argues that Runway's Gen-4.5 generates clips only up to 10 seconds, so longer campaign films require manual stitching. The article says Runway also lacks integrated scripting, voiceover and multi-scene workflows, and that Luma's Ray 3.2 and Layers address those gaps.