'%3e%3c/path%3e%3cdefs%3e%3clinearGradient%20gradientUnits='userSpaceOnUse'%20id='lobe-icons-vidu-_R_0_'%20x1='.759'%20x2='26.155'%20y1='5.637'%20y2='17.311'%3e%3cstop%20stop-color='%2340EDD8'%3e%3c/stop%3e%3cstop%20offset='.024'%20stop-color='%2338E7E2'%3e%3c/stop%3e%3cstop%20offset='.084'%20stop-color='%2328DAF7'%3e%3c/stop%3e%3cstop%20offset='.124'%20stop-color='%2322D5FF'%3e%3c/stop%3e%3cstop%20offset='.36'%20stop-color='%231ABFFF'%3e%3c/stop%3e%3cstop%20offset='.85'%20stop-color='%230786FE'%3e%3c/stop%3e%3cstop%20offset='.909'%20stop-color='%23047FFE'%3e%3c/stop%3e%3c/linearGradient%3e%3c/defs%3e%3c/svg%3e)
We gave the Vidu Q3 Pro API a start and end frame of a product and it morphed between them flawlessly at 1080p. The keyframe control sold us.
The Vidu Q3 Pro API start-end-to-video mode takes a start frame and an end frame and generates the video that transitions between them at flagship Q3 Pro quality — variable 1-10s duration, up to 1080p, optional prompt guidance and generated audio, reproducible seed, via one OpenAI-compatible REST endpoint at 15% below official.
Input
The text prompt sent to the model
Output
SampleRun the model to replace this previewVidu Q3 Pro API: Start-End-to-Video
Interpolate a start and end frame into a smooth clip with the Vidu Q3 Pro API — flagship quality, up to 1080p, 1-10 seconds.
The Vidu Q3 Pro API (video_generate.vidu_q3_pro_f2v_novita) is the flagship start-end-to-video mode: you supply a start frame and an end frame through image_urls, optionally add a text prompt to steer the motion, and the Vidu Q3 Pro API generates the video that transitions smoothly between them. It renders the in-between at top-tier quality while honoring composition, lighting, and subject continuity across both frames. The Vidu Q3 Pro API supports a variable 1 to 10 second duration, resolution up to 1080p, and an optional generated audio track per request.
Pricing on the Vidu Q3 Pro API is $0.425 per generation — 15% below the official rate of $0.500. It uses one RouterBase key, no separate SDK or account, and the same JSON shape covers 200+ other models. Because the Vidu Q3 Pro API is async and OpenAI-compatible, you POST /v1/images/generations with the model and image_urls for the start and end frames, then poll GET /v1/images/generations/{id} until status=success. Teams reach for the Vidu Q3 Pro API for morph transitions, seamless loops, and before-and-after reveals, where the 15% saving compounds at scale.
Six reasons teams ship on the Vidu Q3 Pro API
From explicit keyframes to 1080p output — what the Vidu Q3 Pro API gets right.
Interpolate start to end frame
Supply two keyframes and the Vidu Q3 Pro API generates the video that transitions between them — you control exactly where the shot begins and ends.
Flagship Q3 Pro quality
The Vidu Q3 Pro API is the top-tier Vidu render — the highest fidelity and most coherent motion of the family for demanding transitions.
Morphs, loops & before-after
Perfect for morph transitions, seamless loops, and product before-and-after reveals — the Vidu Q3 Pro API fills the gap between two fixed states.
Up to 1080p resolution
Render at 540p, 720p, or up to 1080p — the Vidu Q3 Pro API lets you pick resolution per call, drafting at 540p and shipping at 1080p.
1-10 second variable duration
Set any duration from 1 to 10 seconds. The Vidu Q3 Pro API is not locked to a fixed length — one render fits a short loop or a longer transition.
OpenAI-compatible & 15% off
One endpoint, one key at $0.425/generation — 15% below the official rate. The Vidu Q3 Pro API uses the same JSON shape as every RouterBase model.
Quickstart
Get started with the Vidu Q3 Pro API in 3 steps
From sign-up to your first start-end-to-video call in under 5 minutes.
Prepare start and end frames
Host two clean, well-lit images at public URLs — a start frame and an end frame that share a subject or scene. The Vidu Q3 Pro API interpolates between exactly these two, so aligned framing produces the cleanest transition.
POST with image_urls
Send image_urls with the start and end frame, plus an optional prompt, duration, resolution, and audio flag, to POST /v1/images/generations. The Vidu Q3 Pro API returns an async job id immediately; poll GET /v1/images/generations/{id} until status=success.
Poll and download the clip
The success response from the Vidu Q3 Pro API contains a signed CDN URL under the results array. Drop it into a video tag or copy it to your own bucket — ready with no post-processing.
Pay only for what you use
RouterBase passes through partner-tier pricing. Compared against the model's official published API rate.
| Resolution | RouterBase | Official | Save |
|---|---|---|---|
| 540p 5s | $0.191 | −15% | |
| 720p 5s | $0.425 | −15% | |
| 1080p 5s | $0.510 | −15% |
About $0.085 per second.One run at the default settings (720p) costs $0.425.With $1 you can run this model approximately 2 times.
What teams build with the Vidu Q3 Pro API
Real production loads running on the Vidu Q3 Pro API and the RouterBase catalog.
Two photos in, one seamless loop out. The Vidu Q3 Pro API turns a before-and-after pair into a shareable transition in minutes.
Variable 1-10s duration means our transitions land exactly on the beat. The Vidu Q3 Pro API gives us the precise length we storyboarded.
We batch keyframe pairs overnight on the Vidu Q3 Pro API at 1080p. Every start-end set ships as a polished morph by morning.
I passed a start frame and an end frame to the Vidu Q3 Pro API and got a clean seamless loop with generated audio in one call.
RouterBase puts 200+ models behind one key. The Vidu Q3 Pro API is our default for controlled keyframe transitions.
At $0.425 per clip the Vidu Q3 Pro API fits our budget, and resolution control lets us draft at 540p and ship the morph at 1080p.
Same JSON shape, different model ID. Adding the Vidu Q3 Pro API for start-end transitions was the easiest change in our rollout.
15% off adds up fast when the Vidu Q3 Pro API renders thousands of before-and-after reveals per week.
Frequently Asked Questions
Common questions about the Vidu Q3 Pro API start-end-to-video task.
The Vidu Q3 Pro API start-end-to-video task takes a start frame and an end frame and generates the video that transitions smoothly between the two images, at flagship Q3 Pro quality.