AI generator workflow

Upscale Runway Gen-3 video locally to 1080p / 4K

Runway generations look sharp in the product UI and soft on a big timeline. KwaFlux reconstructs resolution and texture on your own GPU so keepers become delivery masters — without uploading the clip again.

Download for WindowsFree 1s/3s/5s previews — no account, no credit card

Finish locally

Local 4K finish for Runway keepers

Preview 1s/3s/5s for free on your GPU, then export locally — no upload. Atmosphere only; not a claimed upscale result.

Empty runway still suggesting AI-generated footage — illustrative atmosphere, not a KwaFlux output
Illustrative atmosphere for generated footage — not a KwaFlux before/after or product UI.

Typical cloud upscale path

Re-upload the generation to another service → wait in queue → pay per minute — and the master still left your machine.

KwaFlux local path

Import the export you already have, preview free 1s/3s/5s on your GPU, then batch the keepers — no second upload meter.

Why Runway Gen-3 output needs upscaling

  • Generator deliveries are typically sized for preview and social, not 4K finishing.
  • Player upscaling smears motion texture and fine edges that Gen-3 already struggles to hold.
  • Re-uploading masters to another cloud enhancer adds cost, delay, and NDA risk.

Recommended KwaFlux settings for Runway Gen-3 footage

General model, moderate tier, 1080p or 4K

Balanced reconstruction for photoreal and cinematic Gen-3 takes without over-crunching synthetic detail.

Portrait model when faces dominate

Keeps skin natural on talking-head and character-forward generations.

Batch folder of keepers only

Iterate at native resolution, then upscale only the takes you will publish.

Three-step workflow

  1. 01

    Export from the generator

    Download the clip at the highest resolution and bitrate your plan allows — the cleaner the source, the more AI Video Enhancer can recover.

  2. 02

    Preview settings in KwaFlux

    Import the clip, apply the recommended settings below, and render a free 1s/3s/5s preview to check the result on your actual footage.

  3. 03

    Upscale and export locally

    Render to 1080p or 4K on your own GPU — no upload queue, no per-clip cloud fees, and batch mode handles a whole folder of generations.

Frequently asked questions

Does this work on older Runway models too?

Yes. The same local upscale path applies to Gen-3 and earlier Runway video exports — use the free 1s/3s/5s preview to pick model strength per look.

Will upscaling fix warped hands or morphing?

No. Those are generation artifacts. Upscaling recovers resolution and edge detail; pick a better take first, then upscale.

Can I upscale a whole batch of generations at once?

Yes. Batch processing applies the same recipe to a folder of clips unattended — useful when you generate many takes and want them all delivery-ready.

Is my generated video uploaded anywhere?

No. The AI processing runs on your own GPU and your clips are not uploaded — there are no per-minute cloud fees or upload queues. The network is used only for sign-in and license checks (needed to export on a paid plan) and for updates.

Related KwaFlux workflows

AI Video Enhancer

Reconstruct soft generator output toward 1080p or 4K

Learn how it works

AI Ultra HD

Intent page for neural detail reconstruction

Learn how it works

AI Color Enhance

Optional motion/color polish beside the upscale pass

Learn how it works

AI Video Quality Repair

Clean compression damage before you grow the canvas

Learn how it works

More AI generator workflows

Upscale Sora videosUpscale Kling videosUpscale Veo videosUpscale Seedance videosUpscale Midjourney videos

Finishing workflows

Fix old home videoRepair then upscaleSocial repurposeSubtitle localizeTalking-head BG replaceShort-drama localization

Guides & comparisons

Upscale Sora videos

Upscale Sora videos to 4K - locally

Learn how it works

AI Video Enhancer

Upscale 480p / 720p sources to 1080p or 4K output

Learn how it works

Upscale Kling videos

Upscale Kling AI videos to 4K - locally

Learn how it works

Upscale Veo videos

Upscale Veo videos to 4K - locally

Learn how it works

The workflow on this page is powered by the KwaFlux AI Video Enhancer — see that page for the full model lineup, honest limits, and system requirements. Motion smoothing comes from the AI Color Enhance.

Sora, Kling, Veo, Seedance, Midjourney, and Runway are trademarks of their respective owners (OpenAI, Kuaishou, Google, ByteDance, Midjourney, Inc., and Runway AI, Inc.). KwaFlux is an independent product and is not affiliated with, sponsored by, or endorsed by any of these companies. Generator output specifications vary by plan and version — verify with your provider.