Runway Video Extend - Video Generation AI Tool | Free Online

Runway

Utilize Runway to generate high-quality videos from text and images. Leverage Runway AI for seamless integration and immediately start creating your Runway masterpieces.

Generate

Extend

Aleph

Configuration

Video Preview

Waiting for Video Generation

Configure parameters and click "Generate Video" button to start creating your AI video

Text to Video

Image to Video

Multiple Aspect Ratios

➡️Continuation Description: Describe what should happen next in the video sequence

🔗Consistency: Maintain visual and narrative consistency with the original video

⚡Dynamic Actions: Specify movements, actions, and developments clearly

🎯Quality Selection: Choose resolution based on your needs - 720p for faster generation, 1080p for higher quality

🎬 Runway · Gen-3 Video · Three Workflows

➡️ Runway Extend

Select a completed Runway Generate task from your history, then write a continuation prompt (≤1000 characters). Output resolution is 720p or 1080p—ideal for lengthening a clip you already rendered with Generate.

What is Runway Extend?

Runway Extend on FuseAITools continues a clip produced by Runway Generate. Required: a valid task ID from your completed generate jobs (listed in the Task dropdown) plus a prompt (≤1000 chars). Choose 720p or 1080p output quality. Arbitrary video uploads are not accepted—only prior Runway generate tasks.

🎬 Runway on FuseAITools

Runway on FuseAITools covers the full short-video lifecycle— Generate from text or a reference still, Extend a completed generate task forward or backward, and Aleph to restyle uploaded footage while preserving motion structure. Credits appear on each Generate button before submission. New users receive 20 free credits on sign-up.

✨ Runway Core Features

Text & Image to Video

Generate 5s or 10s clips from a prompt—with optional reference still for image-to-video at 720p/1080p.

Task-Based Extend

Continue a Runway Generate render with a continuation prompt—seamless style-consistent lengthening.

Aleph Style Transform

Restyle uploaded footage with transformation prompts—optional reference image, seed, and six aspect ratios.

Cloud on FuseAITools

Three Runway workflows in the browser—credits shown before generate; no local GPU required.

🎯 Built for These Scenarios

Social & ad short-form videoStoryboard & pre-visualizationImage-to-motion promosClip continuation & loopsStyle transfer on existing footage

📊 Runway Workflows Compared

Dimension	Generate	Extend	Aleph
Input	Prompt (+ optional image)	Runway generate task ID + prompt	Uploaded video + prompt (+ optional reference image)
modelKey	`runway_generate`	`runway_extend`	`runway_aleph`
Duration	5s or 10s	Matches source clip	Inherits source length
Resolution	720p / 1080p*	720p / 1080p	—
Best for	Text-to-video or image animation from scratch	Continue a Runway generate render	Style transfer and scene transform on existing video

*10-second Generate clips do not support 1080p in the form.

❓ FAQ (Runway)

Which tasks can I extend with Runway Extend?

Only tasks completed with Runway Generate (runway_generate) appear in the Task dropdown. Uploads from other tools or Aleph outputs are not eligible unless they were produced through Generate on this account.

How long can a Runway Extend prompt be?

Do I need a local GPU for Runway on FuseAITools?

How is Runway priced on FuseAITools?

⚙️ Runway Technical Specs

Parameters below match the FuseAITools Runway form and API (runway_* models).

Workflow	Required input	Duration	Resolution / ratio	Key controls
Generate	Prompt (≤1800 chars); optional 1 image (JPG/PNG, max 10MB)	5s or 10s	720p / 1080p; aspect 16:9, 4:3, 1:1, 3:4, 9:16 when no image	Optional watermark text
Extend	Completed `runway_generate` task ID + prompt (≤1000)	Matches source	720p / 1080p	Watermark (max 50 chars)
Aleph	Video URL (MP4/MOV/AVI, max 10MB) + prompt	Inherits source	Aspect 16:9, 9:16, 4:3, 3:4, 1:1, 21:9	Optional reference image; seed; watermark (max 20 chars)