Runway Gen-4 Turbo: Image to Video Online
Bottom line
Runway's speed-focused image-to-video model for fast iteration in 5, 8, or 10 second takes. Upload a starting frame, choose Runway Gen-4 Turbo in the Image to Video tool, and animate it on VdoBloom — the credit price appears before every generation.
Speed of iteration is the whole argument for Gen-4 Turbo. Runway positioned this model as the fast variant of its Gen-4 generation, and the workflow reflects that: you upload a still image, describe the motion you want, and get results quickly enough to treat each render as a sketch rather than a commitment.
It is an image-to-video model only — there is no text-only mode — with clip lengths of 5, 8, or 10 seconds. The 8-second middle option is a practical addition that the older Gen-3 lacks, landing between quick loop and full shot. All five common aspect ratios are available (16:9, 9:16, 4:3, 3:4, 1:1), so the same source image can drive a landscape hero video and a vertical cutdown.
Like the rest of the Runway lineup, Gen-4 Turbo carries a CENSORED content label with strict provider-side filtering. Users rate it 4.2 on VdoBloom, and because pricing is displayed in credits before each generation, running several motion variations of one image and keeping the best take is an easy habit to build.
What creators use Runway Gen-4 Turbo for
- Test several motion directions on the same product still and keep the best 8-second take.
- Turn campaign key art into a 10-second 16:9 hero video for a landing page.
- Convert a portrait shot into a 5-second 9:16 clip for Stories and Shorts.
How to use Runway Gen-4 Turbo on VdoBloom
- 1Open the Image to Video tool and select Runway Gen-4 Turbo from the model picker.
- 2Upload your starting image and describe the motion you want in the prompt.
- 3Choose your duration (5–10s), aspect ratio, review the credit cost, and generate.
Frequently asked questions
Does Runway Gen-4 Turbo work from a text prompt alone?
No — it is an image-to-video model, so a source image is required for every generation. The text prompt still matters, but it directs the motion and camera behavior rather than defining the scene from scratch.
What durations can Gen-4 Turbo generate?
Clips come in 5-, 8-, or 10-second lengths. The 8-second option is a useful midpoint that Runway's older Gen-3 model does not offer.
Which aspect ratios does Gen-4 Turbo support?
16:9, 9:16, 4:3, 3:4, and 1:1. One source image can be run in multiple framings, which suits campaigns that need a landscape master plus vertical cutdowns from the same visual.
What are the content restrictions on Gen-4 Turbo?
It carries a CENSORED label — Runway applies strict provider-side filtering, so explicit material, graphic violence, and sensitive real-person content will typically be refused. Uploaded source images are subject to the same policy as text prompts.