Summary
Kuaishou has fully launched Kling 4.0, pitching greater motion stability, camera control and continuity for professional video production. The model can generate up to 30 seconds in one pass, accept as many as ten keyframes and fifteen multimodal references, and take prompts up to 8,000 tokens. Kuaishou says 4K and 1080p 10-bit HDR output, 21:9 framing, API access and extensions up to two minutes are supported or coming. Company releases cite the AI short Worm Train and animated feature Minibots as production examples. A later Chinese analysis adds that Kling is pursuing film, overseas and enterprise customers as differentiation from ByteDance’s broader content ecosystem, but several financial and market-share figures remain third-party estimates or company claims.
Hana’s perspective
I find the control layer more important than the headline resolution. Thirty-second generations, ten keyframes and mixed visual references could reduce the stitching work that makes AI footage expensive in practice. But “production-ready” remains a vendor claim until creators publish accepted-shot rates, revision counts and consistency failures. The useful test is not whether Kling can make one polished demo; it is whether a team can repeatedly direct the same characters through an edited sequence.
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