Can I upscale Runway Gen-4.5 video to 4K?

Yes. Export the Runway Gen-4.5 clip, open upres.ai, drop the file, pick Motion, download 4K. Free: 3 upscales a month. Creator launch is $9/mo.

Which UpRes model should I pick?

Motion is the fast 4K finish for Sora 2, Kling 3, Runway Gen-4.5 and Veo 3.1. Motion X is slower and for film.

No. UpRes runs in the browser. No Topaz install, no local card.

UpRes · Blog

Upscale Runway Gen-4.5 clips to 4K

Gen-4.5 holds characters across shots. Upscaling after the cut keeps that look on a 4K timeline without a second Gen pass.

Native size

Runway Gen-4.5 usually lands at typically 720p–1080p. That is enough in the generator. It is not enough after Instagram, TikTok or YouTube compress the file again.

Do this

Export the Runway Gen-4.5 clip as MP4.
Open upres.ai and sign in.
Drop the file. Pick Motion.
Wait. Download 4K.

Price

Free: 3 upscales a month. Creator launch: $9/mo locked in (was $19). 20 minutes of 4K video. Studio: $39/mo.

Also

Sora 2 to 4K
Kling 3 to 4K
Runway Gen-4.5 to 4K
Veo 3.1 to 4K

Lock in $9/mo