Runway Gen-4 Video Generator
Runway Gen-4 - Fast, World-Consistent AI Video
Runway Gen-4 Turbo turns a prompt or still into a 5-8 second clip in about a minute, world consistency intact.
Made With Runway Gen-4
Stills from Runway Gen-4 clips - world-consistent scenes, rapid concept shots, restyled footage, and new camera angles generated from prompts.
Why Runway Gen-4
Gen-4 Turbo is engineered for speed and coherence, and Aleph extends it into prompt-driven editing - a rare pairing that covers both generating new shots and reworking footage you already have.
Fast 5-8s Generation
Gen-4 Turbo returns a 5-8 second clip in about a minute - roughly a 5× speed boost over earlier iterations - so you can iterate on a shot repeatedly instead of waiting between takes.
World Consistency
Runway Gen-4 keeps scenes, characters, and objects coherent across a clip, so the generated world holds together instead of drifting frame to frame - the trait Runway is best known for.
Aleph In-Context Editing
Aleph transforms existing footage from text: generate new camera angles, extend scenes, adjust lighting and atmosphere, add or remove objects, and apply fresh styles - all by prompt, without a full VFX pass.
Text-To-Video And Image-To-Video
Start from a written prompt or anchor on an image, then refine quickly thanks to the fast turnaround - ideal for exploring directions before committing to a final shot.
Runs In Your Browser
Gen-4 and Aleph run entirely in the browser with nothing to install - generation happens in the cloud, so your device never carries the render, and new accounts get free credits to start.
Commercial-Ready Output
Clips can be used commercially in line with the site terms, and Gen-4's world consistency keeps the output coherent enough for client pitches, moodboards, and prototyping work.
Best Use Cases for Runway Gen-4
Where Gen-4 Turbo's one-minute turnaround and Aleph's prompt-driven editing genuinely pay off - from first concept to reworking footage mid-edit.
Explore many directions fast - Gen-4 Turbo's roughly one-minute turnaround lets you iterate on the same shot again and again from a text or image prompt before locking it in.
Relight a scene, swap the sky, remove background people, or restyle a clip with a text prompt - in-context editing that reshapes existing footage without a full VFX pass.
Generate alternate camera angles and extend scenes from existing footage with Aleph to fill gaps in coverage while you edit, instead of reshooting.
Build world-consistent concept clips and mood pieces for pitches and moodboards, where coherence and fast turnaround both matter.
Turn a brief into a coherent 5-8 second clip in about a minute and share commercial-ready concept work - per the site terms - with clients and stakeholders.
Bring a still image to life by anchoring image-to-video on it, then use the quick turnaround to dial in the motion until the shot reads the way you want.
Runway Gen-4 FAQ
What Runway Gen-4 and Aleph are, how text-to-video and image-to-video work, and how to run them in your browser with free credits to start.
Runway Gen-4 Turbo is Runway's fast video model. It generates 5-8 second clips in about a minute - roughly a 5× speed boost over earlier versions - with the world consistency Runway is known for, from text or image inputs.
Generate With Runway Gen-4
Open the playground, switch to Runway Gen-4, and turn a prompt into a world-consistent clip in about a minute - free credits to start, nothing to install.