Two AI video generators, side by side. Facts below link to their sources; last checked 2026-10-17.

AI video platform. Gen-4 keeps characters, locations and objects consistent across shots; Gen-4.5 improves motion and prompt adherence. source

Video generation platform from Kuaishou. Kling 3.0 supports up to 15-second videos with native audio and consistent characters. source
Runway: Gen-4.5 video generation with consistent characters and worlds. Kling AI: Kuaishou's video model: 15s clips, native audio, multi-shot storyboards.
Runway: From $15/month (free tier available). Kling AI: See official pricing (free tier available). Prices change often; confirm on the official pricing pages.