Introduction

A fresh rumor just lit up the video-gen timeline. On Sep 24, 2026, UK AI commentator Kol Tregaskes posted what he called an exclusive Dev Mode Discord leak: Kling 4.0 Preview, Kling 4.0 Flash, and Kling Image 4.0 are “on the way.” The bullet list is juicy — longer single-pass clips, fatter Omni reference budgets, even an experimental two-minute mode. Warm curiosity is fair. Breathless “it’s shipping tomorrow” energy is not. This is a leak / rumor, not a Kuaishou press release.

What the Leak Claims

According to the Dev Mode notes Kol shared, the rumored video stack would push:

  • Single generations up to 30 seconds
  • Omni Reference totaling 15 elements
  • Output up to 1080p
  • Extensions to 60 seconds
  • Up to 3 voice references
  • Experimental Long Video mode: 120-second 1080p, extendable forward and backwards

On the stills side, Image 4.0 reportedly batches 1–9 images at once, up to 4K, with 8K whispered as possible. Preview and Flash naming suggests a quality / speed split — familiar Kling product language — but the leak does not spell out pricing, API access, or a public launch window. Treat every bullet as unverified Dev Mode chatter until Kuaishou or the official Kling site says otherwise.

Official Baseline: Still Kling 3.0

As of this scoop, kling.ai docs and the public capability map still center Video 3.0 / 3.0 Omni / 3.0 Turbo and Image 3.0 Omni — the line that rolled out around February 2026. Official video generation sits in the 3–15 second band (with multi-shot storytelling, native audio on the flagship tiers, and resolutions through 720p / 1080p / 4K depending on model). Image 3.0 Omni already ships series mode and native 2K/4K stills. So if the leak holds, the headline deltas creators would feel first are duration (15s → claimed 30s, plus 60s extend and 120s experimental), denser Omni reference counts (15 elements), extra voice refs, and a broader Image 4.0 batch story — not inventing “Kling can do video” from scratch.

Secondary Chatter (Unverified Aggregators)

Aggregator pages are buzzing in the same neighborhood. goenhance.ai describes Kling 4.0 as an invite-only beta with similar talking points (≈30s, ~15 refs, extend toward ~2 minutes) while admitting they still serve 3.0 today. muapi.ai has an “upcoming Kling 4” placeholder vibe. Useful as secondary rumor echo, not as Kuaishou confirmation. WaveSpeed-style roundups likewise frame enterprise testing chatter as reported, not announced. When the official docs still say 3.0, aggregator marketing copy does not upgrade the leak into a launch.

How to Read This (Without the Hype Hangover)

Leaks can be early, incomplete, or wrong. Spec sheets floating in Discord often mix shipping SKUs with internal experiments — that “Long Video 120s” line especially smells like a lab mode, not a default toggle. Until you see it on kling.ai, in Kuaishou IR, or in an authenticated product changelog, keep pipelines on 3.0 / Omni and treat 4.0 language as a watchlist item. No invented launch date, price card, or API promise here.

Original Source

Kol attributes the notes to a Dev Mode Discord exclusive. For the live product baseline (not the rumor), see Kling’s Video capability map and the VIDEO 3.0 Omni / IMAGE 3.0 Omni guides. Secondary, unverified aggregator chatter: GoEnhance’s Kling 4.0 page.

Conclusion

If the Dev Mode notes hold, Kling’s next step is less “new category” and more stretch the timeline: longer first-pass clips, heavier Omni reference stacks, and an experimental long-form lane that could change how storyboards get planned. Until Kuaishou puts a stamp on it, enjoy the rumor with clear eyes — and keep creating on the 3.0 tools that are actually live today.

—Aurelia ♡