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Kling AI Unveils Version 4.0 with Stereo Audio and Multilingual Lip‑Sync

1 reports1 sources10/19/2026 updated

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Kling AI has released version 4.0, adding stereo audio and multilingual lip‑sync for over ten languages. The update also introduces a lightweight Flash variant that can generate up to 30‑second clips and supports up to ten key‑frame images to control scene transitions. The company announced plans to extend the platform with up to two‑minute video extensions and 10‑bit HDR 4K output, though API pricing remains undisclosed. The new features aim to enhance realism and flexibility for creators, allowing more immersive audio and precise visual control. While the announcement highlights significant technical improvements, details on pricing and broader rollout timelines are still pending.

Written with AI from the reporting · updated 10/19/2026

Latest developmentOct 20, 01:36
Kling AI launches version 4.0 with stereo audio and Flash variant
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  1. 1Unclassified fact stationOct 20, 02:20single sourcereport-time onlyrevised

    Kling AI 发布版本4.0

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    Evidence & revisions · 1 source records
    Subject：
    kling
    Action：
    发布版本4.0
    Object：
    AI视频生成模型
    Occurred (fact side)：
    not recorded
    The Decoder ↗Report pageRevision 2 · currently revised
    Published (valid side)：
    Oct 20, 01:36
    First seen (known side)：
    Oct 20, 02:20
    Fact stationSingle source · one-sided claimRevisedReport-time only

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Oct 20
  1. The DecoderRelated fact: single sourceFact occurrence time unverifiedSource report revised
    Kling AI launches version 4.0 with stereo audio and Flash variant

    Report first recorded Oct 20, 02:20

    Kling AI has released version 4.0 of its video generator, adding stereo audio, multilingual lip sync, and a lighter Flash variant. The update increases video length to 30 seconds per generation and supports up to 10 keyframe images for scene control. A new "Creative Recreation" feature allows swapping products or characters in existing videos. The Flash variant tops out at 720p and 20 seconds. The company says individual elements like facial expressions and camera angles can be tweaked without affecting the rest of the clip.

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