Kling 4.0 enters beta: 30s native generation, 10 keyframes, stereo audio, HDR
智东西 · wechat · 2026-09-29
Kuaishou's Kling AI announced Kling 4.0 (beta now, October launch) plus a faster, cheaper Kling 4.0 Flash. The flagship generates 30-second clips natively (2x Kling 3.0), supports up to 10 keyframes, 8000-token prompts, 15 reference inputs (10 images + 5 clips), dual-channel stereo with improved lip sync, 21:9 aspect ratio, and upcoming 4K/1080p 10-bit HDR output. Editing lets users add/remove subjects, change weather and style. Kling AI raised rounds at a $18B valuation and plans a HK IPO within 12 months.
Related event: Kuaishou's Kling 4.0 Set for October Launch as Flash Version Rolls Out(7 posts)→
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