You can now generate video with two new Runway models in Imaginations: Runway Gen-4.5 and Runway Aleph 2. Both give you more choice when creating motion content that carries your brand style, so you can match the right model to the look and budget of each project.
How to use it
Open Imaginations and start a new video generation.
In the model selector, choose Runway Gen-4.5 or Runway Aleph 2.
Enter your prompt, or add a start frame if you want to animate from an existing image.
Generate, then review your draft and add finishing touches in your preferred tools.
Credit cost
Video models are priced by the length of the clip you generate. Runway Aleph 2 is the higher-fidelity option and uses more credits per second than Runway Gen-4.5, so pick Gen-4.5 when you want faster, more economical drafts and Aleph 2 when you need higher quality. Your current credit balance and per-second cost are shown before you confirm a generation.
Limitations
Runway Gen-4.5 supports text-to-video and image-to-video from a start frame only. It does not support an end-frame input, so you can guide where a clip begins but not where it lands. If you need end-frame control, choose a different video model in the selector.
Tip: As with all AI generation, these models get you a strong first draft. Use a start frame that reflects your brand's visual style to keep motion output consistent, then refine the final result in your design tools.