Kling v2.1 – AI Video Generator

Master (Text‑to‑Video) • Pro / Standard (Image‑to‑Video). Generate short cinematic clips in seconds with clear controls and predictable pricing.

Open Kling Playground → View Pricing
5–10s
Clip length
T2V/I2V
Modes
Fast
Queue + webhook
Simple
Prompt enhancer

API Endpoints

Use our REST API to submit Kling tasks and check status. Authenticate via session cookie or API token.

POST/api/v1/kling/generate/

Master (Text‑to‑Video)

curl -X POST https://ulazai.com/api/v1/kling/generate/ \
  -H 'Content-Type: application/json' \
  -b 'sessionid=YOUR_SESSION' \
  -d '{
    "model": "kling/v2-1-master-text-to-video",
    "prompt": "Handheld dolly-in across a neon night market...",
    "duration": "5",
    "aspect_ratio": "16:9",
    "negative_prompt": "blur, distort",
    "cfg_scale": 0.5
  }'

Pro (Image‑to‑Video)

curl -X POST https://ulazai.com/api/v1/kling/generate/ \
  -H 'Content-Type: application/json' \
  -b 'sessionid=YOUR_SESSION' \
  -d '{
    "model": "kling/v2-1-pro",
    "prompt": "Particles drift across the brand plate, gentle parallax...",
    "image_url": "https://example.com/still.webp",
    "duration": "10",
    "negative_prompt": "flicker, warp",
    "cfg_scale": 0.6,
    "tail_image_url": "https://example.com/outro.webp"
  }'

Standard (Image‑to‑Video)

curl -X POST https://ulazai.com/api/v1/kling/generate/ \
  -H 'Content-Type: application/json' \
  -b 'sessionid=YOUR_SESSION' \
  -d '{
    "model": "kling/v2-1-standard",
    "prompt": "Slow logo push-in with subtle dust motes...",
    "image_url": "https://example.com/logo.png",
    "duration": "5"
  }'
GET/api/v1/kling/status/<generation_id>/
curl https://ulazai.com/api/v1/kling/status/UUID/ -b 'sessionid=YOUR_SESSION'
POST/api/v1/kling/enhance/
curl -X POST https://ulazai.com/api/v1/kling/enhance/ \
  -H 'Content-Type: application/json' \
  -b 'sessionid=YOUR_SESSION' \
  -d '{"prompt":"Market at night, neon reflections, handheld motion"}'

We use webhooks for completion plus polling fallback. Credits are charged on submit and auto‑refunded if the task fails. See the Kling API docs or the full API docs for auth options.

Models

Master — Text‑to‑Video

Write a prompt. Kling composes a 5–10s scene with smooth motion and consistent style. Great for quick ideation and social teasers.

  • • Inputs: prompt, duration, aspect_ratio
  • • Enhance prompt via AI
  • • Credits: 5s=160, 10s=320

Pro — Image‑to‑Video

Animate a still image into a dynamic shot. Optional tail image for smooth end frames. Ideal for product motion, logos, or scene reveals.

  • • Inputs: prompt, image_url, duration, tail_image_url (optional)
  • • Credits: 5s=60, 10s=120

Standard — Image‑to‑Video

A streamlined I2V flow with predictable costs for short clips. Perfect for experimentation and bulk concepts.

  • • Inputs: prompt, image_url, duration
  • • Credits: 5s=30, 10s=60

Why teams use Kling

⚡

Fast & scalable

Async tasks with webhook callbacks, plus polling fallback. Render at scale without blocking your UI.

🎛️

Simple controls

Duration, aspect ratio (T2V), CFG, negatives, and prompt‑enhance. Clear, minimal UI for fast iteration.

💳

Transparent credits

Pricing shown before you generate. Usage/refunds tracked automatically in your credit history.

Pricing

Master (T2V): 5s=160, 10s=320 • Pro (I2V): 5s=60, 10s=120 • Standard (I2V): 5s=30, 10s=60

Try Kling Playground

Note: Final costs depend on selected options and may change as models evolve.

FAQ

What’s the difference between Master, Pro and Standard?

Master generates from text prompts only (Text‑to‑Video). Pro and Standard animate a still image (Image‑to‑Video); Pro also supports a tail image for smoother endings. Pricing reflects capability and speed.

How long do generations take?

Most 5–10s clips finish within 1–2 minutes. The app uses webhooks for completion events and light polling as a fallback.

Can I reuse prompts?

Yes. Save your best prompts and reuse them across models. The playground includes an AI prompt enhancer to refine style and motion cues.