Runway’s full-quality model
Runway 4.5 is Runway’s flagship video generation model, built on a Transformer-based architecture that prioritizes spatial coherence, subject consistency, and cinematographic control. Where Runway Gen 4 Turbo is optimized for speed, Runway 4.5 delivers maximum quality — finer detail, more stable motion, and stronger adherence to complex camera and subject instructions. The model handles both text-to-video and image-to-video workflows, with standout performance on controlled camera movements, consistent character behavior across a clip, and physically accurate scene composition.Capabilities
Precise camera control
Responsive to cinematographic prompts — dolly shots, pans, tilts, tracking shots, and static frames all render reliably with the specified movement.
Subject consistency
Maintains consistent appearance of characters and objects throughout a clip, reducing drift or morphing common in earlier video models.
Text-to-video
Generates high-quality video directly from detailed text prompts, with strong spatial and narrative coherence.
Image-to-video
Animates a static reference image with specified motion, lighting changes, or camera movement.
Multiple aspect ratios
Supports 16:9, 9:16, 1:1, 4:3, 3:4, and 21:9 for flexible delivery across platforms and formats.
Cinematic motion quality
Transformer architecture delivers smooth, physically plausible motion — natural inertia, realistic object interaction, and stable scene composition.
Specifications
How to use
- Text to video
- Image to video
1
Open the AI Video Generator
Log into ImagineArt and go to the AI Video Generator.
2
Select Runway 4.5
Choose Runway 4.5 from the model dropdown.
3
Write your prompt
Describe the scene with clear camera direction, subject behavior, and mood. Include cinematographic language for the best results.
4
Set duration and aspect ratio
Choose your desired duration (5 or 10 seconds) and aspect ratio for your target platform.
5
Generate
Click Generate and review the output.
Prompting tips
- Use camera terms precisely — “Slow dolly forward,” “handheld close-up tracking the subject,” and “static wide shot with subtle camera shake” all produce reliably different cinematic results.
- Describe subject behavior — “A woman slowly turns to face the camera,” “a car accelerates from a standstill” — specific actions translate to consistent motion.
- Specify lighting — “Soft diffused window light,” “high-contrast backlit silhouette,” or “golden hour side lighting” guide the visual mood.
- Image-to-video: match your prompt to your image — The reference image anchors the scene; the prompt should describe the motion and changes, not restate what’s already visible.
Example prompts
A lone astronaut stands on the surface of Mars, slowly turning to survey a vast red canyon. Cinematic wide shot, dust particles catching the sunlight, no sound. 24 FPS.
Close-up on a steaming cup of coffee being placed on a marble table. Slow-motion, soft natural window light, shallow depth of field, bokeh background.