Kling 4.0 hands-on tests and comparisons

Third-party platform Raywake adds Kling 4.0 with 720p/1080p output, vertical, horizontal, square and 21:9 frames, product-photo start and end-frame selection, plus pricing and an API example.

A rundown of Kling 4.0's official specs from its October 15 launch: up to 30 seconds per generation, 1080p with 4K, 21:9 and 10-bit HDR rolling out, Omni Reference with 10 images, 5 videos and 7 subjects, 10 keyframes, 8,000-token prompts, and MCP/CLI access.

Since Oct 15 Kling 4.0 is reachable from Claude Code via MCP and CLI with 3–30s clips and prompts up to 8,000 tokens, though not every web option made it into MCP.

fal announces public Kling 4.0 availability with open API access: up to 30s native video with audio, 15 image/video/element references and 10 keyframes.

A Japanese post notes the Kling 4.0 API is public, letting teams embed video generation into workflows, with advice to start small and keep a review step.

fal says Kling 4.0 is available in its UI and Agent, with endpoints for text-to-video, image-to-video, reference-to-video and video-to-video editing.

Kuaishou's Kling 4.0 API is open for applications from enterprise teams and indie developers, upgrading visual realism, multi-keyframe control, lip-sync accuracy, in-frame text rendering and style replication.

Kling AI announced that the API for its Kling 4.0 video model is now open, linking to the official post without pricing or spec details.

Since October 15, standard Kling plans can place orders from Claude Code through MCP, with up to 15 references per task (10 images, 5 videos, 7 subjects plus voice), while the 4.0 API is still marked coming soon.

Live October 15 on web, MCP and CLI, with developer API and 10-bit HDR still coming soon; clips of 3-30 seconds, up to 10 keyframes or 15 references, plans from about $32.56/month.

Kling 4.0 is officially released with MCP and CLI access, and 4K/1080p 10-bit HDR output plus enterprise and developer API access are promised soon.

Pandaily reports Kling 4.0 is now open to all users, adding dual-channel audio, multi-language lip sync and MCP/CLI access, with 4K HDR and an enterprise API coming soon.