Kling 3.0 Omni API pricing: Standard, Pro and 4K per second, with the base Kling 3.0 rates beside it

Kling 3.0 Omni is the full-reference variant of Kuaishou's Kling 3.0, and on UnificAlly it is live from $0.0756 per second at 720p up to $0.378 per second in 4K. One call takes up to 7 reference images, persistent elements, start and end frames, or a source video in Reference or Transform mode, and returns 3 to 15 seconds of video, single-shot or split into 2 to 6 scenes. This post is the Kling 3.0 pricing breakdown for developers: the full Omni rate card, what native audio adds, what a 5, 10 and 15 second video costs at each tier, the base Kling 3.0 API rates beside it, and where the newer Kling 4.0 changes the answer. Parameters and a playground are on the Kling 3.0 Omni API page.

TL;DR: Kling 3.0 Omni costs $0.0756/sec in Standard (720p), $0.1008/sec in Pro (1080p) and $0.378/sec in 4K on UnificAlly, billed per second of output. Native audio is a switch: it lifts Standard to $0.1008/sec and Pro to $0.126/sec, and costs nothing extra in 4K. A 10-second 1080p video with sound costs $1.26; a 10-second 4K video costs $3.78. Our pick: Omni Standard with audio off is the cheapest way to draft a reference-heavy brief on any Kling model, and Omni 4K is the only Kling route that delivers 4K today. For sound-on 1080p work with a cast or a shot longer than 15 seconds, Kling 4.0 Pro is the better buy.

How much does the Kling 3.0 Omni API cost?

Three things set the rate: the mode (Standard 720p, Pro 1080p or 4K), the native_audio switch, and nothing else. Reference images, elements, start and end frames, a source video, multi-shot scenes and the aspect ratio are all included in the per-second price. The rates below refresh from the live price list on every deploy.

Two patterns in the table. First, audio is a per-second surcharge in Standard and Pro and free in 4K, so the 4K rate is the same with or without sound. Second, Standard with audio costs exactly what Pro without audio costs, which gives you a clean trade: at the same price, take 720p with a soundtrack or 1080p silent. Failed tasks are not billed; you pay for completed videos only. The pricing page lists every Kling model side by side.

Kling 3.0 Omni cost per video: worked examples

Each row is one request at a length developers actually ask for.

The 4K rows are the ones to plan around. 4K costs several times the Pro rate, so it belongs on the final deliverable only: lock the prompt, the references and the seed of the look at Standard, confirm at Pro, and run 4K once. Everything else in the request stays the same between tiers, so the promotion is a one-word change to mode.

Kling 3.0 Omni cost per month at 100, 1,000 and 10,000 seconds

Monthly spend is seconds of finished video times the per-second rate. The table multiplies the live rates by three volumes; 1,000 seconds is roughly 100 ten-second videos.

There is no subscription and the balance does not expire. A studio that drafts 1,000 seconds silent at Standard and promotes a tenth of it to 4K pays $75.60 plus $37.80, a fraction of 1,000 seconds at 4K.

Kling 3.0 Omni vs Kling 3.0 pricing: same rates, cheaper audio

Omni and the base Kling 3.0 share their Standard, Pro and 4K rates, so the Omni surface (raw reference images, the video_mode switch, Reference and Transform on a source video) costs nothing extra. The difference is the audio surcharge: base Kling 3.0 charges more per second for native audio than Omni does in both Standard and Pro.

The practical rule: there is no price reason to pick base Kling 3.0 over Omni. If the brief has no references, Omni with video_mode omitted is plain text-to-video at the same rate, and if the brief has sound, Omni is the cheaper of the two. The base endpoint stays useful only for pipelines already wired to its parameter shape. The base rate card, for completeness:

Kling 3.0 Omni vs Kling 4.0: when the newer model is worth more

Kling 4.0 replaced Omni as the flagship on October 15, 2026, with a higher per-second rate and a longer feature list: 30-second takes, 15 combined references, up to 10 keyframes, 21:9, 8,000-token prompts and stereo audio included in the rate. Omni keeps two things 4.0 does not have: a 4K mode, and the lower silent Standard rate.

For sound-on 1080p, the two are close enough that the 4.0 feature list decides it, and the Kling 4.0 pricing post has the full 4.0 rate card including the launch sale. For silent drafts and for 4K delivery, Omni is the pick. On quality, Arena's image-to-video board lists Kling 3.0 Pro at #19 with a score of 1354 as of September 21, 2026, behind Seedance 2.5, Wan 3.0 and Veo 3.1; Kling 4.0 is not ranked yet.

How to call Kling 3.0 Omni at the price you planned

One API key, POST /v1/tasks, and mode set to the tier you priced above. This is a 5-second Pro text-to-video with video_mode omitted, billed at $0.504 when it completes.

curl -X POST https://api.unifically.com/v1/tasks \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "kuaishou/kling-3.0-omni-video",
    "input": {
      "prompt": "A majestic eagle soaring through mountain peaks at sunset",
      "duration": 5,
      "mode": "pro"
    }
  }'

Add "native_audio": true for the with-audio rate, change mode to std or 4k to move tiers, and set video_mode: "elements" with up to 7 image_urls (referenced in the prompt as @Image1, @Image2) to bring references in at the same price. A source video goes in video_url with video_mode set to video_reference or transform and aspect_ratio set to auto. The response returns a task_id; poll GET /v1/tasks/<task_id> or set callback_url. Full field reference: docs.unifically.com/models/video/kling/kling-3.0-omni-video.

Kling 3.0 Omni FAQ

How much does the Kling 3.0 Omni API cost?

On UnificAlly, Kling 3.0 Omni costs $0.0756/sec in Standard (720p), $0.1008/sec in Pro (1080p) and $0.378/sec in 4K, billed per second of output. Native audio raises Standard to $0.1008/sec and Pro to $0.126/sec; the 4K rate already includes it. Failed tasks are not billed.

What does a 10-second Kling 3.0 Omni video cost?

$0.756 at 720p silent, $1.26 at 1080p with audio, or $3.78 in 4K. A 15-second 4K video, the most expensive Omni request, costs $5.67.

Do reference images or a reference video change the Kling 3.0 Omni price?

No. Up to 7 reference images, persistent elements, start and end frames, a source video in Reference or Transform mode, and multi-shot scenes are all included in the per-second rate. Only the mode and the native audio switch change what a request costs.

How much does Kling 3.0 cost compared with Kling 3.0 Omni?

The silent Standard, Pro and 4K rates are identical on both. With native audio, base Kling 3.0 costs $0.1134/sec in Standard and $0.1512/sec in Pro, against $0.1008/sec and $0.126/sec on Omni, so Omni is the cheaper route for sound-on video.

How much does Kling 4K video cost?

$0.378/sec on Kling 3.0 Omni, with native audio included at no extra charge. Kling 4.0 does not offer 4K yet, so Omni is the only Kling route for 4K delivery on UnificAlly today.

What is the cheapest way to use the Kling 3.0 Omni API?

Draft at 5 seconds in Standard mode with audio off, which costs $0.378 per take, then rerun the same request at Pro or 4K for the final. New UnificAlly accounts get a $0.50 signup balance, enough for about 6 seconds of silent Standard output to test the reference syntax before adding funds.

What will change this post

We will update the rate tables when Kuaishou changes the Kling 3.0 rates, when Kling 4.0 gains a 4K mode and takes over the 4K row, when Kling 3.0 Omni moves on Arena's video boards by enough to change the ranking cited above, and if Kuaishou retires the base Kling 3.0 endpoint. Prices on this page refresh from the live price list on every deploy, so the tokens stay current between those updates.

Related reading on Kling 3.0 Omni

• Kling 3.0 Omni API and Kling 3.0 API: playgrounds, parameters, FAQs.
• Kling 4.0 API pricing: the flagship's rate card and launch sale.
• Kling 2.6 API pricing: the budget Kling with native audio.
• Seedance 2.0 vs Kling 3.0: cost per second and a verdict.