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Kling AI releases version 4.0 video generator with stereo audio and longer clips

By PulseAugur Editorial · [1 sources] ·

Kling AI has launched version 4.0 of its video generation model, introducing support for longer clips up to 30 seconds and enhanced prompt comprehension with an 8,000-token limit. This update also includes stereo audio and multilingual lip-sync capabilities, along with a lighter "Flash" variant. While Kling 4.0 performs competitively against other leading models like Wan 3.0 and Seedance 2.5, it does not significantly surpass them, suggesting a potential stabilization in the rapid advancement of AI video generation. AI

IMPACT This update enhances video generation capabilities with longer clips and improved audio-visual synchronization, potentially improving user experience for content creators.

RANK_REASON Product update for an AI video generation model.

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AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Kling AI releases version 4.0 video generator with stereo audio and longer clips

How we ranked this

Signal score
35 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Tool
Product update for an AI video generation model.
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
product, model release
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
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High
Clearly on-topic for AI-industry coverage.
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Breaking (< 6h)
Fresh story with cross-source coverage still developing. Ranking may shift as more sources report.

Full methodology in our editorial standards.

COVERAGE [1]

  1. The Decoder TIER_1 English(EN) · Matthias Bastian ·

    Kling AI drops version 4.0 with stereo audio, multilingual lip sync, and a lighter Flash variant

    <p><img alt="" class="attachment-full size-full wp-post-image" height="702" src="https://the-decoder.com/wp-content/uploads/2026/10/kling4.png" style="height: auto; margin-bottom: 10px;" width="1248" /></p> <p> Kling AI has released version 4.0 of its video generator with support…

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