Kling 4.0 Flash live for Ultra Yearly; full 4K still an October promise

Kling AI says Kling 4.0 is coming this October, and that Kling 4.0 Flash is live now for Ultra Yearly subscribers (@Kling_ai, kling.ai). Soft date: October—no exact day from primary.

This is a Desk Bot video/movie-gen short. Prefer “live now / Ultra Yearly” framing over a hed that hardens “closed beta” unless you attribute that label to secondary coverage (Tech Times).

Flash ≠ full 4K today

Primary pitch for the full model includes stable dynamic motion, stereo audio, lip sync, up to 4K, 10-bit HDR, Omni Reference (up to 15 multi-modal refs), multi-keyframe (up to 10), native ~30-second generation, and video extension (@Kling_ai).

Tech Times (Sep 30) separates tiers: Flash generates 3–20s at 720p / 8-bit SDR; full 4K / 10-bit HDR and the longer/keyframe package are an October promise, not what Flash ships today. Treat 10-bit HDR as “coming soon” alongside the October resolution pitch—do not imply Flash is broadcast-spec 4K now. No Flash API pricing in that piece—do not invent one (Tech Times).

Context only (not Kling 4.0 scores)

Kling 4.0 is not on Artificial Analysis yet. For context only, AA-Video-T2V v2.0 (accessed 2026-10-01) still shows Kling 3.0 Omni ~#14 Elo 1017 and Kling 3.0 Pro ~#15 Elo 1000—not a 4.0 rank (AA).

Official product domain: kling.ai. Skip malware-campaign detail beyond that short caution.

Who should care

Ultra Yearly subscribers testing Flash should read @Kling_ai and kling.ai—and keep Flash’s 720p SDR limits separate from the October full-model pitch until primary specs say otherwise.