Kling 4.0: Release Date, Pricing & Features

Kling 4.0 makes 30-second AI videos in up to 4K HDR. See its October release date, what Kling 4.0 Flash does now and what plans cost from $8.80 a month.

Kuaishou’s Kling 4.0 is the next video model from Kling AI. It generates videos of up to 30 seconds in a single pass, with up to 10 keyframes, 15 reference assets, stereo audio and native 4K. The full model is due in October 2026, and a lighter Kling 4.0 Flash has been rolling out to a limited group of creators since September 28.

What is Kling 4.0 and why is it trending?

Kling announced Kling 4.0 in a release note that says the all-new model “will officially launch in October” and that Kling 4.0 Flash “became available to a limited group of users for early access on September 28.” Its Kling 4.0 feature page, checked on October 5, 2026, still lists the full model as coming soon this October.

The upgrade is a big jump from Kling 3.0. Kling says 4.0 offers longer videos of up to 30 seconds in one pass, adds multi-keyframe control, accepts far more references in one task and outputs 10-bit HDR at 1080p and 4K. Kling’s feature page also cites more than 60 million users and 600 million AI videos generated, so a new flagship model gets a lot of attention.

How Kling 4.0 works

Kling describes 4.0 as a native multimodal video model. Text-to-video, image-to-video, references, video continuation and editing all live in one panel in Kling Creator Studio. A typical workflow looks like this:

1. Start from text or images: write a prompt of up to 8,000 tokens, or upload a first frame, last frame or up to 10 keyframes.
2. Add references: combine up to 15 assets in one task, including up to 10 images, 5 videos (30 seconds in total), voice references and 7 subjects, called elements.
3. Pick the format: 3 to 30 seconds, at 720p, 1080p or 4K, in 21:9, 16:9, 1:1 or 9:16.
4. Generate with sound: Kling says 4.0 adds two-channel stereo audio, better lip sync and dialogue in languages including English, Chinese, Japanese, Korean, Spanish, Portuguese, German, French and Hindi.
5. Edit or extend: re-edit an expression, camera angle, background or line of dialogue using up to 5 clips, then extend a video forward or backward up to 2 minutes in total once video extension arrives. Kling lists extension as coming soon.

Kling 4.0 vs Kling 4.0 Flash

Kling 4.0 Flash is built on Kling 4.0 but supports only some of its features. Here’s how the two compare, according to Kling’s feature page and release note:

Feature	Kling 4.0	Kling 4.0 Flash
Availability	Launching in October 2026	Limited rollout since September 28, 2026
Video length	3–30 seconds per pass	Up to 20 seconds per pass
Resolution	720p, 1080p and 4K	Up to 720p
Dynamic range	10-bit HDR at 1080p and 4K (Kling’s release note says HDR is coming soon)	8-bit SDR
Modes	Text-to-video, image-to-video, first and last frames, up to 10 keyframes, Omni Reference	Text-to-video, image-to-video and Omni Reference. No first and last frames or keyframes

Kling 4.0 Pricing (2026)

Kling hasn’t published how many credits Kling 4.0 or Kling 4.0 Flash use per second. Like Kling 3.0, it runs on Kling AI’s credit-based membership plans. We checked the plans on Kling’s membership page on October 5, 2026, using the monthly billing tab. Prices are in USD as shown to us and may differ by region.

Plan	First month	Then (monthly)	Credits/month
Basic	$0	$0	No monthly credits
Standard	$6.99	$8.80/month	660
Pro	$25.99	$32.56/month	3,000
Premier	$64.99	$80.96/month	8,000
Ultra	$127.99	$159.99/month	26,000

Free plan: Kling’s Basic plan is free forever but includes no monthly credits. Subscriber-only features include 1080p and 4K video generation, watermark removal and commercial use. Kling also offers limited-time free credits to new users. It hasn’t said whether Kling 4.0 will be available to free users.

What Kling 4.0 is likely to cost in credits

Kling hasn’t published Kling 4.0 credit rates yet. For reference, Kling’s Kling 3.0 credit guide lists native 4K output at 30 credits per second, which works out to 900 credits for a 30-second clip at that rate. Kling 4.0 rates may differ, so check the generation panel before you budget. Higher tiers cost less per credit, from $1.06 per 100 credits on Standard to $0.49 per 100 on Ultra.

Is Kling 4.0 worth it? If you already make AI video, Standard at $8.80 a month is enough to try Kling 4.0 Flash if your account gets access. Wait for Kling to publish 4.0 credit costs before you commit to Premier or Ultra for 4K work.

Best use cases for Kling 4.0

• Short films and ads: 30-second single-pass clips with keyframes for structured multi-shot sequences.
• Trend replication: upload a trending clip as a reference, add your own assets and keep the same pacing and camera moves.
• Product videos: product swaps and reveals with keyframes and image references.
• Multilingual content: on-screen text and dialogue in 9 languages, with regional accents.
• Cinematic work: 4K, 10-bit HDR and 21:9 ultrawide for footage you plan to color grade.

Limitations

• Not fully out yet: the full Kling 4.0 is due in October 2026. Only Kling 4.0 Flash is available, and only to a limited group.
• Unpublished credit costs: Kling hasn’t said how many credits Kling 4.0 or Flash use per second.
• Some features are coming soon: Kling’s release note lists 10-bit HDR as coming soon, and video extension up to 2 minutes isn’t available yet.
• Flash is limited: it’s capped at 720p and 20 seconds, in 8-bit SDR, with no keyframes.
• Paywalled quality: 1080p and 4K generation and watermark removal need a paid plan.

Kling 4.0 alternatives

• Kling 3.0: our technical review of Kling 3.0 and its API, which you can use today.
• Seedance 2.0: ByteDance’s video model, reviewed by TechPilot.ai.
• Veo 3.1 vs Sora 2: how Google’s and OpenAI’s video models compare.
• Higgsfield AI: image-to-video with consistent characters and camera moves.
• PixVerse AI: fast AI videos for social media from text or images.

On paper, Kling 4.0 is a big step up from Kling 3.0: 30-second single-pass clips, up to 10 keyframes, 15 references and native 4K HDR put it among the most capable AI video models announced in 2026.

For now, it’s mostly a preview. The full model isn’t due until October 2026, Kling 4.0 Flash is limited to some users at 720p, and Kling hasn’t published 4.0 credit rates. If you’re already on a Kling plan, sign in and try Flash. Otherwise, wait for the full release and its credit pricing before paying for a higher tier, and use Kling 3.0 in the meantime.