Kling O3 4K API

Kling O3 4K is a text to video, image to video and reference to video model by Kling AI, available on the Venice API as kling-o3-4k-text-to-video. Requests are anonymized, so the provider never sees your identity.

Kling O3 4K API pricing

Model ID	Variant	Privacy	Price
`kling-o3-4k-text-to-video`	Text to video	Anonymized	from $0.46 per second
`kling-o3-4k-image-to-video`	Image to video	Anonymized	from $0.46 per second
`kling-o3-4k-reference-to-video`	Reference to video	Anonymized	from $0.46 per second

Kling O3 4K specifications

Spec	Value
Provider	Kling AI
Released	Apr 22, 2026
Privacy	Anonymized
Modes	text to video, image to video and reference to video
Durations	3s, 4s, 5s, 6s, 7s, 8s, 9s, 10s, 11s, 12s, 13s, 14s, 15s
Aspect ratios	16:9, 9:16, 1:1
Audio	Optional

How to use the Kling O3 4K API

Send requests to POST https://api.venice.ai/api/v1/video/queue with "model": "kling-o3-4k-text-to-video" and your API key.

# 1. Queue the job (returns a queue_id)
curl https://api.venice.ai/api/v1/video/queue \
  -H "Authorization: Bearer $VENICE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "kling-o3-4k-text-to-video",
    "prompt": "Slow aerial drone shot over a misty mountain valley at golden hour",
    "duration": "5s",
    "aspect_ratio": "16:9",
    "audio": true
  }'

# 2. Poll until the MP4 is ready
curl https://api.venice.ai/api/v1/video/retrieve \
  -H "Authorization: Bearer $VENICE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "model": "kling-o3-4k-text-to-video", "queue_id": "<queue_id>" }' --output video.mp4

Kling O3 4K API FAQ

How much does the Kling O3 4K API cost?

From

0.46 to

0.46 per second of video, depending on resolution, duration and audio. A 5-second clip costs $2.31. Call POST /video/quote for the exact price before queueing. Prices are in USD and can be paid in DIEM at parity.

What is the Kling O3 4K model ID?

Use kling-o3-4k-text-to-video as the model parameter. Other variants: kling-o3-4k-image-to-video (Image to video), kling-o3-4k-reference-to-video (Reference to video).

Is the Kling O3 4K API private?

Kling O3 4K is anonymized: Venice forwards requests to the provider without your identity, but the provider may retain prompt data, so use a private model for sensitive work.

What resolutions and durations does Kling O3 4K support?

Durations: 3s, 4s, 5s, 6s, 7s, 8s, 9s, 10s, 11s, 12s, 13s, 14s, 15s. Aspect ratios: 16:9, 9:16, 1:1. Audio: optional, with "audio": true.

Which endpoint does the Kling O3 4K API use?

Queue a job with POST /video/queue, then poll /video/retrieve for the result.

Related models

HappyHorse 1.0 API: from $0.15 per second
Grok Imagine API: from $0.06 per second
Runway Gen-4.5 API: from $0.16 per second
PixVerse C1 API: from $0.03 per second

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