Runway Gen-4 Turbo: Image to Video Online
Bottom line
Runway Gen-4 Turbo animates a photo at fixed 720p, 5/8/10 seconds, from 20 to 40 credits. 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.
Runway Gen-4 Turbo is image-to-video only on VdoBloom — there's no text-to-video mode for this variant, and no quality selector either: every output renders at a fixed 1280×720 for 16:9, with proportional dimensions for the other four supported aspect ratios (9:16, 4:3, 3:4, 1:1). Duration is 5, 8, or 10 seconds.
Pricing scales with duration only, since there's no resolution choice: 20 credits for 5 seconds, 32 credits for 8 seconds, 40 credits for 10 seconds. That's more than Runway Gen-3's flat 20-credit 10-second/720p price, since Gen-4 Turbo is a newer model running on Runware rather than KIE.
If you need a resolution above 720p from Runway, this isn't the model for that — Gen-3 is the only Runway option on VdoBloom with a 1080p tier. Gen-4 Turbo's advantage is being purpose-built for image animation rather than a shared text/image picker, and its per-second price sits between Gen-3's budget tier and Gen-4.5's premium one.
Prompts on Gen-4 Turbo are capped at 1,800 characters, the same limit VdoBloom applies to every Runway model, and the content filter carries VdoBloom's STRICT rating — the provider rejects sexual, violent, or otherwise policy-violating uploads before a generation ever runs.
What it costs on VdoBloom
Runway Gen-4 Turbo is priced flat by duration: 20 credits for 5 seconds, 32 credits for 8 seconds, 40 credits for 10 seconds. There's no resolution tier to raise or lower the price. Cost is shown before you generate and refunded automatically if the job fails.
Runway Gen-4 Turbo vs Gen-4.5
Gen-4 Turbo is image-to-video only, at 20–40 credits for 5–10 seconds. Gen-4.5 covers both text-to-video and image-to-video from the same picker, at 48–96 credits for the same durations — both output at a fixed 1280×720 resolution. Gen-4 Turbo suits pure image animation at the lower price; Gen-4.5 is the pick if you also want a text-to-video start.
What creators use Runway Gen-4 Turbo for
- Animating a single uploaded photo when you don't need a text-to-video mode at all.
- Getting a consistent fixed 720p output without picking a resolution setting.
- Choosing a duration precisely — 5, 8, or 10 seconds — for a specific edit timeline.
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
How much does Runway Gen-4 Turbo cost?
Flat by duration: 20 credits for 5 seconds, 32 credits for 8 seconds, 40 credits for 10 seconds. There's no resolution setting to change the price.
Is Runway Gen-4 Turbo free?
New accounts get 10 free credits, which covers half of the cheapest 5-second Gen-4 Turbo generation (20 credits) — a top-up is needed to finish one.
Does Runway Gen-4 Turbo support text-to-video?
No — it's image-to-video only on VdoBloom. Upload a photo to animate it; there's no text-only mode for this model.
What resolution does Runway Gen-4 Turbo output?
A fixed 1280×720 for 16:9, with proportional dimensions for its other supported ratios (9:16, 4:3, 3:4, 1:1) — there's no quality selector to raise it.
What's the prompt limit for Runway Gen-4 Turbo?
1,800 characters, the same as every Runway model on VdoBloom.
Is Runway censored?
VdoBloom rates Runway's content filter STRICT: uploads and prompts that trip the provider's policy are rejected before generation runs.
Is Runway Gen-4 open source?
No, Runway is a proprietary model available only through its API, on VdoBloom as elsewhere.
Runway Gen-4 Turbo vs Gen-4.5 — what's the difference?
Gen-4 Turbo is image-to-video only and cheaper (20–40 credits for 5–10s). Gen-4.5 supports both text-to-video and image-to-video, is priced higher (48–96 credits for the same durations), and is the newer model of the two — both output at the same fixed 1280×720 resolution.