Kling 1.6 (Pro)

Released in late 2024, this closed-source legacy I2V model's key feature was its input method, supporting both first-frame and last-frame images for narrative control in 1080p output. The model prioritizes structured animation over generative freedom, enabling controlled loops and precise scene transitions. While it lacks the motion fluidity of later generations, its strength lies in predictable output. As a 2024 release, it has been superseded by O1 I2V and 2.1 Pro for frame-control workflows requiring modern quality.