Creating with Gen-4.5: A Complete Guide to Runway’s Advanced Video Generation

Runway’s Gen-4.5 represents a major leap forward in AI-powered video generation, setting a new standard for motion quality, prompt adherence, and cinematic visual fidelity. Whether you are crafting hyper-realistic cinematic sequences, dynamic social media clips, or exploring imaginative concepts, Gen-4.5 gives creators unprecedented control over camera choreography and scene atmosphere.

This comprehensive guide explores how to access, prompt, configure, and iterate with Gen-4.5 to bring your creative vision to life.

Step 1 — Accessing Gen-4.5

Getting started with Gen-4.5 in the Runway workspace is quick and intuitive. You can open the model using two main pathways:

• Apps View Search: Navigate to the Apps View in your Runway dashboard and type Gen-4.5 into the top search menu.
• Tool Mode Selector: Alternatively, enter Tool Mode, select Video, and choose Gen-4.5 directly from the model selector dropdown.

Step 2 — Crafting Your Vision (Prompting Best Practices)

Gen-4.5 supports both Text-to-Video and Image-to-Video workflows, allowing you to build from scratch or anchor your generation with a visual starting point.

Text-to-Video

For text prompts, write in clear, direct language that describes both the core visual elements and the motion of the scene. Focus on detailing subject behavior, lighting, and camera movements (