Runway
Turn a prompt or a single image into smooth 720p or 1080p video with Runway Gen-4.
Made with Runway
Sample outputs. Open in Studio to generate your own.
Where Runway shines
Prompt to clip
Generate a short cinematic shot from a written description alone using text-to-video.
Animate a still
Add a single start image to bring a static frame to life as a moving image-to-video clip.
Vertical and wide
Produce 16:9 widescreen or 9:16 vertical video at 720p or 1080p for different placements.
Strengths
- Handles both text-to-video and image-to-video from one model, switching modes automatically when you add a start image
- Outputs full-HD 1080p in addition to 720p for sharper, deliverable clips
- Built on the Runway Gen-4 family for high-fidelity, temporally coherent motion
Trade-offs
- 1080p is limited to 5-second clips; 10-second duration is only available at 720p
- Only 16:9 and 9:16 aspect ratios are offered, with no square or 4:3 options
- Maximum clip length is 10 seconds and no audio is generated
At a glance
About Runway
Runway is a video generation model built on the Runway Gen-4 family, available on HexGen for turning written prompts and still images into short, motion-rich clips. Write a description and it runs text-to-video from the prompt alone. Add a single start image and it switches to image-to-video, animating your frame into a moving shot.
The model outputs at 720p or full-HD 1080p in either 16:9 widescreen or 9:16 vertical, so you can target both landscape players and mobile-first feeds. Clips come back as MP4 files at 5 or 10 seconds, with the Gen-4 architecture delivering high-fidelity, temporally coherent motion that holds together across the frame.
Pricing is flat per video and tiered by resolution and duration rather than billed by the second, so the cost is predictable before you hit generate. Pick your settings, write your shot, and HexGen handles the rest.
Starting points
Copy, tweak, and run. Good prompts get you most of the way there.
A lone lighthouse on a rocky cliff at dusk, waves crashing below, slow cinematic camera push-in, golden hour light.
Close-up of a steaming cup of coffee on a wooden table by a rainy window, gentle steam rising, soft morning light, shallow depth of field.
A red sports car driving along a coastal mountain road, sweeping aerial tracking shot, bright sunny afternoon, ocean in the background.
Pay only for what you render. 1 USD = 1,000 HGcoins. HGcoins never expire and failed runs refund automatically.
Runway vs other models
Runway sits alongside other HexGen video models. Here is how it compares on output quality, speed, and cost for short clips.
| Model | Quality | Speed | Cost | Choose it when |
|---|---|---|---|---|
Runway This Runway | Best | Fast | Mid cost | Pick Runway when you want one model that covers both text-to-video and image-to-video with full-HD 1080p output and predictable flat per-video pricing. |
Kuaishou | Great | Fast | Mid cost | Consider Kling 2.6 as another general-purpose video model for prompt-driven clips. |
ByteDance | Great | Fastest | Lower cost | Reach for Seedance 2.0 when faster, lower-cost video generation matters more than 1080p output. |
Related models
Frequently asked questions
It generates short video clips from either a text prompt (text-to-video) or a single start image (image-to-video), built on the Runway Gen-4 family.