Kling 4.0 launches with 30-second native video generation and 10-bit HDR
Kling AI launched Kling 4.0 on October 15, introducing native video generation up to 30 seconds, 10-bit HDR output, and claimed improvements in fast motion and complex camera movements. The model supports up to 15 combined reference assets, up to 10 keyframe inputs, and prompts up to 8000 tokens. Support for 4K, 1080p, and 21:9 output, repeated video extensions totaling up to 2 minutes, and API access are described as forthcoming.
Why it matters: The reference inputs, keyframe controls, and HDR output provide concrete context for assessing how Kling 4.0 could fit into professional video production workflows.