YepAPI
KlingVideo Generation/v1/media/queue

Kling O1 API

Kling O1 from $0.24/sec — reasoning-led video generation for complex, multi-beat prompts.

Kling's reasoning-led video model. Interprets complex prompts before rendering, producing 5 or 10 second clips at 720p with audio and keyframe control — from $0.24 per second.

No credit card required. Takes 30 seconds.

Kling O1 API pricing

Pay per request from your YepAPI balance — no subscription, no monthly minimum. Prices updated July 31, 2026.

BillingPrice
Rate (720p)$0.24/sec
What it costsPer job
5-second clipfrom lowest resolution$1.20
10-second clipfrom lowest resolution$2.40
100 × 5-second clipsan ad-creative batch$120.00

2,400+

Developers

1.2M+

API calls served

100+

Endpoints

$0.01

Per call

Yep, that's it.

Try it live

Enter a prompt and generate a video with Kling O1.

POST/v1/media/queue

Drop image or click to upload

For image-to-video (first/last frame)

Response
Hit "Send Request" to see the response

Kling O1 specs

ProviderKling
Model IDkwaivgi/kling-video-o1
Endpoint/v1/media/queue
TypeVideo Generation
Resolutions720p
Aspect ratios16:9, 9:16, 1:1
Durations5, 10 seconds
AudioGenerated with the video
Image inputYes

How to get a Kling O1 API key

  1. 1

    Create a free account

    Sign up at yepapi.com with Google or email. It takes about 30 seconds and needs no card.

  2. 2

    Create an API key

    Open the dashboard, go to API Keys and create a key. Copy it — it starts with yep_sk_.

  3. 3

    Call Kling O1

    Send a request to /v1/media/queue with the x-api-key header and model "kwaivgi/kling-video-o1".

  4. 4

    Pay as you go

    Usage is billed per request from your balance. Top up any amount; there is no subscription.

Strengths

✓
Reasoning before rendering

The O1 line plans the shot from the prompt, which helps on briefs with sequence, causality, or specific staging.

✓
Complex prompt handling

Multi-beat descriptions — an action, then a reaction — survive into the generated clip more often.

✓
5 or 10 second clips

Two fixed durations at 720p in 16:9, 9:16, or 1:1.

✓
Audio and keyframes

Optional synced audio plus first/last-frame conditioning for controlled starts and endings.

Quick start

Copy this snippet and start making calls with Kling O1.

// Step 1: Submit job
const res = await fetch('https://api.yepapi.com/v1/media/queue', {
  method: 'POST',
  headers: {
    'x-api-key': 'YOUR_API_KEY',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    "model": "kwaivgi/kling-video-o1",
    "prompt": "A domino chain topples across a wooden table, knocking over the last piece which tips a small bell — camera tracks alongside at table height, soft daylight",
    "options": {
      "aspectRatio": "16:9",
      "resolution": "1080p",
      "duration": "6"
    }
  }),
});
const { data } = await res.json();
const jobId = data.jobId;

// Step 2: Poll for result
const status = await fetch(`https://api.yepapi.com/v1/media/status/${jobId}`, {
  headers: { 'x-api-key': 'YOUR_API_KEY' },
});
const { data: job } = await status.json();
// job.status: "pending" | "processing" | "completed" | "failed"
// job.result: { text?, image?, audio?, video? }

Kling O1 vs similar models

Every model below runs on the same API key — switch by changing the model ID.

ModelProviderPrice
Kling O1Klingfrom $0.24/sec (720p)
Kling 3.0 StandardKlingfrom $0.18/sec (720p, audio +50%)
Kling 3.0 ProKlingfrom $0.24/sec (720p, audio +50%)
Seedance 1.0 Pro FastByteDancefrom about $0.02/sec (480p), about $0.04/sec (720p), about $0.10/sec (1080p)
Grok Imagine Video 1.5 LitexAIfrom $0.04/sec (480p)
HeyGen VideoHeyGenfrom $0.04/sec (480p)
Seedance 1.0 ProByteDancefrom about $0.05/sec (480p), about $0.10/sec (720p), about $0.24/sec (1080p)
Seedance 2.0 MiniByteDancefrom about $0.07/sec (480p)

Why use Kling O1 through YepAPI?

✓One API key for all models — no separate accounts
✓No monthly minimums — pay per call
✓Switch models with one line of code
✓Simple REST API — works from any language
✓Unified billing across all providers
✓No rate limits for most use cases

Kling O1 API — reasoning-led AI video generation

Kling O1 is the reasoning-oriented member of Kling's video lineup. Rather than rendering straight from the prompt, it interprets the brief first, which pays off when a shot has a sequence of events or specific staging.

Through YepAPI it generates 5 or 10 second 720p clips on `/v1/media/queue` at about $0.24 per second, with optional audio and keyframe control.

Start generating in 30 seconds

$5 free credit on signup. No credit card required. Pay per call.

What developers say

“Switched from SerpAPI and cut our SERP costs by 80%. Same data quality, way simpler billing.”

Marcus T.

SEO Platform Founder

“One API key for AI models, SERP data, and web scraping. Saved us from managing 4 separate providers.”

Priya S.

Full-Stack Developer

“The $5 free credit let us prototype our entire rank tracking feature before committing. No other API does that.”

Jake R.

Indie Hacker

Frequently asked questions

Kling's reasoning-led video model. Interprets complex prompts before rendering, producing 5 or 10 second clips at 720p with audio and keyframe control — from $0.24 per second.

Kling O1 costs from $0.24/sec (720p) through YepAPI, billed per request with no monthly fee. For example, a 5-second clip (from lowest resolution) costs about $1.20.

Sign up at yepapi.com (Google or email, about 30 seconds), open the dashboard and create an API key. The same key works for Kling O1 and every other model — no separate Kling account or waitlist.

New YepAPI accounts in most countries get free signup credit, enough to test Kling O1 without a card. After that you pay per request at the rates above — there is no subscription.

Use "kwaivgi/kling-video-o1" as the model on /v1/media/queue. The short alias "kling-o1" also works.

Ready to use Kling O1?

$5 free credit on signup. No credit card required. Pay per call.

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