Kling V3
prospolabs/kling-v3
Kling Video 3.0 — cinematic prompt-driven generation with multi-shot storyboarding. Text-to-video and image-to-video with optional end-frame interpolation.
Starts from
Retail $0.168
Input
Storyboard multiple shots — overrides the single prompt above when used.
Typically completes in 30–90s.
Result
IdleOr write your own prompt and hit Generate.
01overview
What is Kling V3?
Kling V3 (Kling Video 3.0, built by Kuaishou's Kling team) is a cinematic, prompt-driven video model with multi-shot storyboarding. It handles both text-to-video and image-to-video, supports optional end-frame interpolation so you can pin the closing frame of a shot, and gives you direct control over guidance, negative prompts, and clip duration from 3 to 15 seconds.
On Prospolabs, Kling V3 runs at $0.10/sec with audio off (retail $0.168/sec) and $0.15/sec with audio on (retail $0.252/sec) — roughly 40% under typical retail pricing in both modes. A 5-second clip costs $0.50 audio-off or $0.75 audio-on. There are no credit packs to pre-buy and no subscription tiers to decode: you pay per generation in plain USD, top up from $5, and the same price applies whether you generate in the Prospolabs UI or over the API.
Prospolabs auto-refunds failed runs, so a generation that errors never costs you anything — useful while you're iterating on prompts and tuning cfg_scale. Compared with the official platform's credit math (where V3 is priced per second and credits don't carry over), Prospolabs keeps billing transparent: a per-second rate, the retail number shown beside it, and a balance that only moves on successful output.
Kling V3 for $0.10/sec — about 40% under retail
Prospolabs runs Kling V3 at $0.10/sec audio-off (retail $0.168/sec) and $0.15/sec audio-on (retail $0.252/sec). That's a 5-second clip for $0.50, or $0.75 with audio. No credit packs, no monthly tier, no tokens — just USD per generation, top up from $5, with failed runs auto-refunded. Same price in the Prospolabs UI and over the API.
02capabilities
What Kling V3 can do
Text-to-video
Generate a clip from a prompt alone in "text" mode. Set aspect_ratio for the framing you need, dial cfg_scale to trade prompt adherence against motion freedom, and use negative_prompt to suppress artifacts. Duration is free across the 3–15s window.
Image-to-video with optional end frame
In "image" mode, animate a still into motion. Supply an optional end frame and Kling V3 interpolates toward it, letting you bracket a shot with a defined start and finish — handy for product reveals or controlled camera moves.
Multi-shot storyboarding
Kling V3 is built for cinematic, multi-shot sequences rather than single static takes, so a single prompt can carry shot changes and narrative beats instead of one locked camera angle.
Optional native audio
Toggle audio on to get sound in the output. It's priced higher ($0.15/sec vs $0.10/sec on Prospolabs) because it's optional — leave it off for silent clips you'll score separately and pay the lower rate.
Fine-grained generation control
negative_prompt, cfg_scale (guidance strength), duration (3–15s), and aspect_ratio (text mode) are all exposed directly, so you can reproduce a look across a batch instead of re-rolling blindly.
03use cases
What people build with Kling V3
Short-form ads and UGC
The 3–15s envelope fits ad spots and social UGC cleanly. Generate variations cheaply at $0.10/sec audio-off, then enable audio only on the cuts you ship.
Cinematic product reveals
Use image-to-video with an end frame to start on a hero still and resolve to a defined closing shot, giving product launches a controlled, intentional camera move.
Storyboard-to-motion previz
Multi-shot storyboarding turns a written beat sheet into moving previz, so directors and clients can react to sequences instead of static boards before a real shoot.
High-volume B-roll and content pipelines
Pay-per-generation pricing with auto-refunded failures makes Kling V3 on Prospolabs predictable for batch B-roll: budget the per-second rate, only pay for successful clips.
04api
Call Kling V3 from your code
The Prospolabs API is one async endpoint for every model. You submit a job, poll for status, then download the result — no per-model SDK, and the API price matches the UI price exactly.
Full Kling V3 API reference →- 01
POST to /v1/generate with model id "kling-v3", a "mode" field of "text" or "image", your prompt (plus image and optional end frame for image mode), and controls like duration, cfg_scale, negative_prompt, and aspect_ratio.
- 02
Read the returned generation_id from the response.
- 03
Poll the job until it completes — back off your polling interval rather than hammering at a fixed rate.
- 04
On success, download from output_url, which stays valid for 7 days. If a run fails, Prospolabs auto-refunds it, so your balance is untouched.
- 05
See /models/kling-v3/api for the full request schema, fields, and language examples.
?questions
Kling V3 FAQ
On Prospolabs, Kling V3 is $0.10/sec with audio off (retail $0.168/sec) and $0.15/sec with audio on (retail $0.252/sec) — about 40% under retail in both modes. A 5-second clip is $0.50 audio-off or $0.75 audio-on.
Prospolabs prices Kling V3 per second in plain USD at roughly 40% under retail, with no credit packs to pre-buy and no subscription required. You top up from $5 and pay only for successful generations, since Prospolabs auto-refunds failed runs.
Yes. Prospolabs charges the same USD price whether you generate Kling V3 in the dashboard or through the API — there's no API surcharge or separate API plan.
"text" mode is text-to-video, where you can also set aspect_ratio. "image" mode is image-to-video and accepts an optional end frame so Kling V3 interpolates toward a defined closing frame. You select it with the "mode" field in the Prospolabs /v1/generate request.
Duration is configurable from 3 to 15 seconds. You set it with the duration control in your request, and the per-second rate makes total cost easy to budget — e.g. a 10-second audio-off clip is $1.00 on Prospolabs.
No. Prospolabs auto-refunds failed runs, so a generation that errors never moves your balance. Successful outputs are downloadable from output_url for 7 days.
Kling V3 fits a flexible 3–15s clip window with simple per-second budgeting and cinematic multi-shot storyboarding. Veo 3.1 leans toward tightly bounded clips and native audio. Both run on Prospolabs at pay-per-generation USD pricing, so you can compare them on the same bill — see /models/veo-3-1.
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