# Kling AI releases version 4.0 with stereo audio and a lighter Flash variant

Digest AI · Generative AI & Models · published 2026-10-19T17:36:26Z

Canonical: https://digestai.news/story/kling-ai-releases-version-4-0-with-stereo-audio-and-a-lighter-flash-va

## Summary

Kling AI announced version 4.0 of its video generator, adding higher resolution, more precise controls and a faster Flash variant. Users can now produce up to 30 seconds of video in a single pass and supply up to ten keyframe images to guide scene changes. Prompt comprehension was expanded to 8,000 tokens.

The new “Omni Reference” system accepts up to 15 reference assets per generation – up to 10 images, 5 videos totalling 30 seconds, and seven other elements such as storyboards or depth‑map videos. A “Creative Recreation” feature lets users swap products or characters in existing videos while keeping other elements unchanged. Stereo audio now offers two‑channel sound and improved lip sync in more than ten languages, including German, English, Japanese, Korean and Spanish. The Flash variant runs at lower cost but is limited to 720p and 20‑second clips. Access is available through MCP and CLI, though API pricing has not been disclosed.

## Key points

- Prompt length expands to 8,000 tokens; Omni Reference handles up to 15 assets, including 10 images and 5 videos (30 s total).
- New Flash variant runs faster at lower cost, limited to 720p resolution and 20 seconds video; stereo audio adds two‑channel sound in 10+ languages.

## Why it matters

Higher‑resolution, longer prompts and multilingual audio make AI video creation more practical for creators, but limits on length and quality suggest the rapid progress may be plateauing.

## Sources

1. [Kling AI drops version 4.0 with stereo audio, multilingual lip sync, and a lighter Flash variant](https://the-decoder.com/kling-ai-drops-version-4-0-with-stereo-audio-multilingual-lip-sync-and-a-lighter-flash-variant) (The Decoder, 2026-10-19)

## Cite

Digest AI, "Kling AI releases version 4.0 with stereo audio and a lighter Flash variant", 19 October 2026, https://digestai.news/story/kling-ai-releases-version-4-0-with-stereo-audio-and-a-lighter-flash-va

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