MODELS · VIDEO · RUNWAY
Runway Gen-4.5.
Text-to-video and image-to-video in five aspect ratios, with 5, 8, or 10 second clips
Free to start · 100+ models on one account · cancel anytime
About Runway Gen-4.5
Runway Gen-4.5 generates short AI video clips from a text prompt, a single reference image, or both together. Every clip renders at 720p across five aspect ratios — 16:9, 9:16, 4:3, 3:4, and 1:1 — so widescreen, vertical, and square formats all come from the same model, with no per-ratio resolution tradeoff. Clip length is picked directly: 5, 8, or 10 seconds. Starting from an image anchors it as the first frame, giving tighter control over the opening shot than a text-only prompt allows. An adjustable public-figure content filter runs on every generation.
- Text to video
- Image to video
How to use Runway Gen-4.5 on getvivix
Create a free getvivix account — no card required.
Choose Runway Gen-4.5 from the model list and set your options.
Enter your prompt or upload your input, hit generate, then download in full quality.
Runway Gen-4.5 — frequently asked
Runway Gen-4.5 is one of 100+ AI models available on getvivix. Runway Gen-4.5 generates short AI video clips from a text prompt, a single reference image, or both together. Every clip renders at 720p across five aspect ratios — 16:9, 9:16, 4:3, 3:4, and 1:1 — so widescreen, vertical, and square formats all come from the same model, with no per-ratio resolution tradeoff. Clip length is picked directly: 5, 8, or 10 seconds. Starting from an image anchors it as the first frame, giving tighter control over the opening shot than a text-only prompt allows. An adjustable public-figure content filter runs on every generation.
Sign in to getvivix and open the Studio, pick Runway Gen-4.5 from the model list, enter your prompt (or upload your input), and generate — then download the result in full quality.
Yes — getvivix has a free tier, so you can try Runway Gen-4.5 without a card. Sign up and start generating right away, alongside 100+ other AI models on one account.
Runway Gen-4.5 supports text to video, image to video. It runs on getvivix alongside 100+ other frontier AI models, all from one account.