Runway Gen-3: Text & Image to Video Online
Bottom line
Runway's film-tool pedigree applied to 5-10 second cinematic clips from text or image. Start from a prompt or a still image in the Text to Video tool; VdoBloom shows the exact credit cost before each Runway Gen-3 run, with no separate Runway account.
Runway ML was building machine-learning tools for working film editors years before generative video became a category, and Gen-3 is where that pedigree shows most clearly. The model leans toward coherent camera movement and a graded, filmic color response, so its output tends to sit comfortably alongside real footage rather than announcing itself as synthetic.
On VdoBloom, Gen-3 accepts either a text prompt or a starting image and returns 5- or 10-second clips at 720p or 1080p. Aspect-ratio coverage is broad: 16:9, 4:3, 1:1, 3:4, and 9:16 are all supported, which means one concept can be reframed for a widescreen edit and a vertical feed without cropping in post.
Moderation is strict — Gen-3 carries a CENSORED content label, meaning the provider filters prompts aggressively. For client and brand work, that predictability is often an asset rather than a limitation. It holds a 4.2 rating from VdoBloom users, and the credit cost of any duration and resolution combination is shown before you generate, so a 5-second 720p draft can be weighed against a 10-second 1080p final before committing.
What creators use Runway Gen-3 for
- Previsualize an ad or film scene as a 10-second 1080p shot before committing to a live shoot.
- Animate a product still into a 5-second 9:16 clip for paid social placements.
- Generate stylized 16:9 establishing shots to bridge scenes in a longer edit.
How to use Runway Gen-3 on VdoBloom
- 1Open the Text to Video tool and select Runway Gen-3 from the model picker.
- 2Write your prompt — or upload a starting image for image-to-video.
- 3Choose your duration (5–10s), quality (720p/1080p), aspect ratio, review the credit cost, and generate.
Frequently asked questions
What clip lengths and resolutions does Runway Gen-3 support?
Gen-3 generates 5- or 10-second clips at 720p or 1080p. Five aspect ratios are available — 16:9, 4:3, 1:1, 3:4, and 9:16 — so both horizontal and vertical deliverables are covered natively.
Can I start a Gen-3 video from an image instead of a text prompt?
Yes. Gen-3 is a text-and-image-to-video model, so you can either describe the shot in words or upload a starting frame and use the prompt to direct the motion. The image route is the better choice when composition or a specific subject needs to be preserved.
How strict is Runway Gen-3's content filter?
Runway built its tools for professional film and advertising pipelines, and Gen-3's moderation matches that client-facing posture: it is labeled CENSORED on VdoBloom, as is the entire Runway line through Gen-4 Turbo and Gen-4.5. Previz, product, and establishing-shot work — the jobs Gen-3 is typically hired for — clears reliably, while explicit content, graphic violence, and real-person likenesses are refused. For brand-safe deliverables, that predictability works in your favor.
How does Gen-3 differ from Runway Gen-4 Turbo and Gen-4.5?
Gen-3 handles both text and image starts at 5 or 10 seconds with published 720p and 1080p quality tiers. Gen-4 Turbo is image-to-video only but adds an 8-second option, and Gen-4.5 is the newer flagship for both input types. All three share Runway's strict content filtering.