Gen-4 Turbo
Runway's speed-optimised video model with the broadest aspect ratio support in the Gen-4 family. Six ratios including 21:9 ultrawide — made for teams generating at volume across multiple formats.
What is Gen-4 Turbo?
Gen-4 Turbo is Runway's speed-optimised variant of the Gen-4 model family. It's engineered for high-volume workflows where multiple generations need to be completed quickly — prototyping, content calendars, campaign volume, and format testing.
A notable feature is its support for six aspect ratios, including 21:9 ultrawide. Most video models support 16:9 and 9:16; Gen-4 Turbo extends this to cover cinema screen ratios, wide-format displays, and specialised placements where standard ratios don't fit. This makes it particularly useful for teams producing content for diverse output contexts.
The Turbo designation means generation speed is prioritised over maximum quality. For rapid iteration rounds, A/B testing, and building out a broad creative direction before committing to final renders, Gen-4 Turbo is the right choice before graduating to Gen-4.5 for final output.
Fast generation
Speed-optimised for volume
6 aspect ratios
Including 21:9 ultrawide
Format flexible
Cover any output placement
Cinematic output
Runway quality standard
How to generate video with Gen-4 Turbo on project.video
Open the composer
Go to your project.video dashboard and open the generation composer. Gen-4 Turbo is available from the Runway section of the model selector.
Select Gen-4 Turbo
Choose Gen-4 Turbo for fast iteration or when you need 21:9 ultrawide output. Switch to Gen-4.5 for final renders without re-entering your prompt.
Choose your aspect ratio
Select from 6 aspect ratios including 21:9, 16:9, 9:16, 1:1, 4:3, and 3:4. This format flexibility covers cinema, landscape, vertical, square, and portrait placements.
Write your prompt and generate
Describe your scene in cinematic terms. Gen-4 Turbo's speed means you can run multiple iterations quickly to find the right direction before going to final quality.
Technical specs
Best use cases
Ultrawide and cinema format content
21:9 is rare among AI video models. Gen-4 Turbo is the choice when your placement demands a cinema ratio — video walls, wide-format displays, CinemaScope-style social content.
Rapid creative direction testing
Generate many concept variations quickly before committing to a final render pass. The speed of Gen-4 Turbo makes it practical to test 10+ directions in the time other models produce one or two.
Multi-format campaign production
One campaign often needs multiple aspect ratios. Gen-4 Turbo's 6-ratio support means you can generate every format variant in a single model without switching tools between placements.
Content calendar filling
For teams producing daily or weekly social content, Gen-4 Turbo's throughput advantage makes batch production feasible. Generate a week's content in a single session.
Example prompts
Copy any of these to get started on project.video.
"Sweeping panoramic landscape — an ancient canyon at sunrise, warm orange and purple light, camera slowly tracks right, dust motes in the air, 21:9 ultrawide"
"Abstract product commercial — colored liquid pours in slow motion through glass vessels, high-key studio lighting, minimal shadow, premium aesthetic, 16:9"
"Close-up of hands folding origami paper, clean white desk surface, soft overhead light, natural sound of paper, vertical format, 9:16"