Kuaishou Kling AI reportedly to launch Kling 4.0 in October with 4K HDR and 30-second video generation, IT Home reports
Reported by IT Home · not yet confirmed by the company or a second independent outlet. We update this page when it is.
Kuaishou Kling AI announced Kling 4.0 will officially launch in October, with Kling 4.0 Flash opening limited experience on September 28, IT Home reported. Kling 4.0 supports 4K/1080p 10-bit HDR output, up to 10 images, 5 videos, and 7 subjects per task, and single video generation up to 30 seconds.
China context
- Original name
- 快手可灵 AI
- Outside China
- Not stated in the sources yet
- Claims
- Company-reported; not yet independently evaluated
- For builders
- Developers outside China should monitor whether Kling 4.0 offers an API or open weights; currently, access appears limited to Kuaishou's platform.
- For investors
- Investors should assess Kuaishou's competitive position in AI video generation and potential monetization through Kling 4.0's advanced features, but no pricing or market data is available.
Translated from Chinese. Quotes and facts link to the original sources.
Kuaishou Kling AI announced that Kling 4.0 will officially launch in October, with Kling 4.0 Flash opening limited experience on September 28. Kling 4.0 supports 4K and 1080p 10-bit HDR output, up to 10 images, 5 videos, and 7 subjects in a single generation task, and single video generation up to 30 seconds with long shots and continuous narrative. It also features upgraded high-speed motion, continuous action, tracking, and surround camera movements, high-quality audio with dual-channel stereo, improved lip-sync accuracy, and support for 21:9 ultra-wide aspect ratio.
Kling 4.0 introduces multi-modal reference inputs (up to 10 images, 5 videos, 7 subjects) combined in one task, enabling more controllable generation. It supports 4K/1080p 10-bit HDR output and 21:9 aspect ratio, with enhanced camera motion stability and audio quality. The model's lip-sync and audio-visual coordination are improved for more natural character performance.
Kuaishou's Kling 4.0 upgrade raises the bar for AI video generation quality and controllability, putting pressure on competitors like Runway, Pika, and OpenAI's Sora to match 4K HDR, multi-modal references, and 30-second outputs. For developers and creators outside China, access to Kling 4.0's capabilities may remain limited to Kuaishou's platform unless an API or open weights are released.
Kling 4.0's enhanced video generation quality and controllability could reduce production costs for video creators and advertisers, enabling longer, higher-resolution, and more complex video content with fewer iterations. However, the business value depends on pricing and access terms, which are not yet disclosed.
The official launch in October will clarify availability and pricing. Specific signals to watch: whether Kling 4.0 API becomes accessible outside China, whether the 4K HDR output is available at launch or later, and how it compares to Sora and other models in independent benchmarks.