Kling 4.0 Promises 30-Second 4K Video, But 10-Bit HDR Is 'Coming Soon'

Kuaishou announced Kling 4.0: clips up to 30 seconds in a single pass, up to 10 reference images, stereo audio and 4K/10-bit HDR. The full model ships in October 2026, while Flash is already in closed beta for Ultra Yearly subscribers at 3–20 seconds, 720p 8-bit SDR.

• Kling 4.0 Full: up to 30 seconds, 10 keyframes, 8,000-token prompt depth
• 4K/10-bit HDR and full public release slated for October 2026
• Flash beta: 3–20 seconds, 720p, 8-bit SDR, Ultra Yearly only
• Kling 3.0 ranked 12th on Artificial Analysis, not fourth