AI video model · by Runway
Runway Gen-4 Turbo video generator
Gen-4 Turbo is a video model from Runway. On MotionLab it sits next to the other video models, so you can try it on a shot and pay per generation with credits instead of a separate monthly plan.
Runway Gen-4 Turbo variants available now
These are the Runway Gen-4 Turbo variants currently enabled on MotionLab and the settings each one accepts. The table is generated from the live model catalog, so it changes when a variant is added, updated or paused.
| Variant | Modes | Duration | Resolution | Aspect ratios | Audio / end frame |
|---|---|---|---|---|---|
| Runway Gen-4 Turbo | Image to video · Text to video | 5–10s | 720p · 1080p | 1:1 · 16:9 · 9:16 · 4:3 · 3:4 | Silent · No end frame |
What to use Runway Gen-4 Turbo for
- Fast image-to-video iterations from an approved still.
- Concept and pitch shots where quick turnaround matters more than maximum length.
- Testing a shot across several models before committing to one look.
- Motion design and stylised inserts for edits.
How to use Runway Gen-4 Turbo on MotionLab
- Sign in and open the video creation page.
- Choose a Runway Gen-4 Turbo variant in the model picker. Only the variants listed above are shown.
- Write your prompt, add a start image or references if the mode needs them, and pick duration, resolution and aspect ratio.
- Check the credit cost shown for your settings, then generate. Failed jobs are refunded automatically.
- Download the result or keep refining it in your library.
Runway Gen-4 Turbo prompt tips
- Start from a strong still: Gen-4 Turbo follows the start frame's composition closely.
- Write motion verbs first — drifts, pans, rises — then add the details.
- Avoid asking for scene changes inside one clip; generate separate shots instead.
- Keep text and logos out of the generated motion; add them in the edit.
More technique in the MotionLab prompt guide and the camera motion guide.
Compare Runway Gen-4 Turbo with other models
Runway Gen-4 Turbo questions
Do I need a Runway subscription?
No. MotionLab runs Gen-4 Turbo for you and charges credits per generation from your MotionLab wallet.
How much does Runway Gen-4 Turbo cost on MotionLab?
Runway Gen-4 Turbo generations spend MotionLab credits from the same wallet used by every model on the site. The credit cost for your exact settings is shown before you generate, and a job that fails is refunded automatically. Credit packs are listed on the pricing page.
Can I use Gen-4 Turbo from text only?
When the text-to-video variant is enabled, the specs table lists it. Otherwise start from an image, which is usually the more controllable workflow anyway.
Do I need a separate Runway account or API key?
No. MotionLab runs Runway for you: sign in, pick the model in the create page and generate. Your results are saved to your MotionLab library next to work from every other model.