AISVIT / AI Video / Text to Video

Runway Gen-4.5 — Text to Video

Text to Video with Runway Gen-4.5 in AISVIT. Turn prompts into high-quality AI videos with advanced text-to-video models. Generate ad concepts, story scenes, product visuals, and social clips in minutes.

About this model

AI video model for premium 5 or 10 second cinematic clips with strong prompt adherence, image-guided starts, and realistic motion.

When is this model useful?

Runway Gen-4.5 is a strong fit when the clip needs to feel polished, directed, and visually expensive rather than like a rough prototype.

Best fit tasks

Premium text-to-video ads, product films, fashion or lifestyle shots, atmospheric scenes, and concept trailers.
Image-to-video animation when you already have a strong still frame, such as a product photo, poster, portrait, storyboard keyframe, or concept render.
Camera-led shots where motion quality matters, including push-ins, reveal shots, orbit moves, dramatic close-ups, and stylized cinematic movement.
Previsualization and creative pitching when a team needs a near-finished visual reference before live production or post-production.

Main advantages

It is known for strong prompt adherence, so camera direction, motion cues, lighting, and scene intent tend to come through more clearly than in many fast models.
Materials, textures, motion, and physical behavior usually look more believable, which helps with premium-looking brand and editorial content.
It supports both text-only generation and image-guided generation, so you can start from an idea or from a locked first frame.
The output often feels more cinematic and visually consistent frame to frame than cheaper models optimized mainly for speed.

Limitations to know

In AISVIT, clips are limited to 5 or 10 seconds and the output is silent.
The model works best when one generation is treated as one scene. Prompts that try to force too many sequential events into one clip may become unstable.
When you upload a start image, that frame strongly controls composition, style, and subject placement, so contradictory prompt instructions may need extra retries.
Like other video models, it can still struggle with exact text rendering, very complex interactions, perfect object permanence, and flawless cause-and-effect logic.

How to use this model

The easiest workflow is to write one clear scene description first, then add a start image or seed only if you need tighter control.

Simple workflow

Write the prompt in plain language: what is in the scene, what happens, what the environment looks like, how the camera moves, and what mood the shot should have.
If you are generating from text only, describe both the visual scene and the motion. If you upload a start image, focus the prompt more on motion, camera movement, and what should change over time.
Choose 5 seconds for faster testing and cheaper iteration, or 10 seconds when the action needs more time to develop naturally.
Select the frame shape you need: 16:9 for websites and YouTube, 9:16 for vertical social platforms, 1:1 for square feeds, or 4:3, 3:4, and 21:9 for more specific layouts.
Upload one start image when you want the shot to begin from a specific product frame, portrait, illustration, or composition.

Supported inputs

Required: a text prompt.
Optional: one start image for image-guided generation.
Aspect ratio choices in this integration: 16:9, 9:16, 4:3, 3:4, 1:1, and 21:9.
Duration choices in this integration: 5 or 10 seconds.
In the AISVIT upload flow, standard image formats such as JPG, PNG, and WEBP are the safest choice.

What you get

A generated MP4 video file.
720p output at 24 frames per second in the current Runway Gen-4.5 workflow.
A 5 or 10 second clip.
Silent output in this integration, so voiceover, music, or sound design is added later if needed.

Other workflows for this model

Image to Video

AISVIT pricing details

Fixed rate: 12 credits per second of video
5 seconds = 60 credits
10 seconds = 120 credits