# Kling 4.0 for game development

Vendor: Kuaishou. Type: Video. Status: live.

Steady characters, longer takes and per-shot prompts.

Kling 4.0 is Kuaishou's newest video model. It renders text or image to video at 720p or 1080p, holds a character steady through the clip, and takes up to 30 seconds with a prompt per shot.

## What it is good for in games

- Trailer shots where the hero must look the same from start to end.
- Cutscenes that put your characters, from renders or concept art, into new scenes (references).
- Cut scene with sound: render the clip with Kling 4.0, then add sound with Kling Video to Audio or ThinkSound.

## In Summer Studio

- Kling 4.0 (Text to video)
- Kling 4.0 (Image to video)
- Kling 4.0 References (Reference to video)

Cost depends on the models you choose. Your dashboard shows spend as it happens.

Try it: https://www.summerengine.com/studio?tab=video&generator=kling%2Fv4%2Ftext-to-video

## Use it from Claude, Cursor or Codex

Call summer_generate_video with model: "kling-4" through the Summer MCP server. Setup: https://www.summerengine.com/mcp

## Questions

### What is Kling 4.0 good for in game development?

Kling 4.0 is Kuaishou's newest video model. It renders text or image to video at 720p or 1080p, holds a character steady through the clip, and takes up to 30 seconds with a prompt per shot. Typical game uses: trailer shots where the hero must look the same from start to end; cutscenes that put your characters, from renders or concept art, into new scenes (references); cut scene with sound: render the clip with Kling 4.0, then add sound with Kling Video to Audio or ThinkSound.

### What can Kling 4.0 generate, and how long are the clips?

In Summer, Kling 4.0 supports text to video, image to video, and reference to video. Generated clips run 3, 5, 8, 10, and 15 seconds, in 16:9, 9:16, 1:1, and 21:9 aspect ratios at 720p and 1080p.

### Can I use Kling 4.0 from Claude Code, Cursor or Codex?

Yes. Connect the Summer MCP server to Claude Code, Cursor, Codex or another MCP client, then ask your agent to generate with summer_generate_video with model: "kling-4". Setup instructions are at summerengine.com/mcp.

### Where do Kling 4.0 results go?

Every generation is saved to your Summer asset library. From there you can download it or bring it into a Summer Engine project.

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## Machine-readable resources

- Site index for agents: https://www.summerengine.com/llms.txt
- Full inlined content: https://www.summerengine.com/llms-full.txt
- Porting catalog: https://www.summerengine.com/llms-porting.txt
- Structured catalog: https://www.summerengine.com/agent-catalog.json
- Sitemap: https://www.summerengine.com/sitemap.xml
- Developer resources: https://www.summerengine.com/docs
- Summer API (assets from any agent or code; public per-call model prices): https://docs.summerengine.com/api