According to Coin World news, China's short video platform Kuaishou has recently upgraded its AI video generation tool Kling 2.1, which adds a new feature for synchronized sound effects, allowing for the automatic addition of environmental sounds such as footsteps and rain. This feature supports 1080p resolution video generation, with a single generation duration of 5 to 10 seconds, and is currently available for free use. In terms of pricing, the subscription fee for Kling 2.1 is $9 per month, which is more than 20 times lower than Google Veo 3's $250 monthly fee. Tests show that Kling excels in synchronized environmental sound effects and cost advantages, but it does not currently support voice synthesis; Veo 3, on the other hand, maintains technological leadership in voice generation and complex sound effect processing. Notably, Kling 2.1 has unique features like 'adding sound effects to silent videos' and 'lip sync', while Veo 3 only supports text-generated videos. In terms of content review, Kling adopts a relatively lenient policy, while Veo 3 enforces a strict keyword filtering mechanism.
