# Kling 4.0 Flash

> Kling 4.0 Flash is a Kuaishou video model in Nodaro for image to video and text to video, from 143 credits per run.

Source: https://nodaro.ai/docs/models/video/kling-4-0-flash

Kling 4.0 Flash — the faster, lower-cost Kling 4.0 at 720p, up to 20s with native audio; a start frame, reference images, videos and characters (each can carry a voice clip), or plain text.

- Maker: Kuaishou
- Modes: Image to video, Text to video
- Durations: 3s, 4s, 5s, 6s, 7s, 8s, 9s, 10s, 11s, 12s, 13s, 14s, 15s, 16s, 17s, 18s, 19s, 20s
- Aspect ratios: auto, 16:9, 9:16, 1:1, 21:9
- Resolutions: 720p
- Features: Generates audio, Reference images, reference-to-video, character-subjects, voice-references
- API type: `kling-4-flash`

## Credits

| Tier | Credits |
| --- | --- |
| default 5s 720p — see:Ns:720p variants for exact | 242 |
| 5s 720p (the default tier) | 242 |
| 3s 720p (min) | 143 |
| 10s 720p | 473 |
| 20s 720p (max) | 935 |
| per-second anchor with a reference video: billed × (output + max(output, input seconds)) ÷ 8 | 253 |

## Use Kling 4.0 Flash in Nodaro

- [Generate Video](https://nodaro.ai/docs/nodes/video/generate-video)
- [Generate Video Pro](https://nodaro.ai/docs/nodes/video/generate-video-pro)

## Run Kling 4.0 Flash from code

<ModelRun id="kling-4-flash" />

## Prompt tips

- A start frame alone is the exact opening frame (@first_frame). Beside references it joins the reference images, like kling-4.
- References: up to 10 images, 5 videos (2-20s together) and 7 characters (15 in all). Name each: @image_1, @video_1, a character's @Name.
- No standalone voice: voice clip N is the voice of wired character N, if that character has 2-4 images (else the clip is dropped); write the character, never @audio_N.
- 3-20s (default 5), 720p only, native audio always on, no end frame. Prompt cap 8,000 chars. Aspect auto / 16:9 / 9:16 / 1:1 / 21:9 (a start frame alone sets its own shape).

## Similar models

- [Kling 2.6](https://nodaro.ai/docs/models/video/kling-2-6)
- [Kling 2.5 Turbo Pro](https://nodaro.ai/docs/models/video/kling-2-5-turbo-pro)
- [Kling 3.0](https://nodaro.ai/docs/models/video/kling-3-0)
- [Kling 2.1 Master](https://nodaro.ai/docs/models/video/kling-2-1-master)
- [Kling 3 Omni](https://nodaro.ai/docs/models/video/kling-3-omni)
- [Kling 4.0](https://nodaro.ai/docs/models/video/kling-4-0)
- [Kling 4.0 Keyframes](https://nodaro.ai/docs/models/video/kling-4-0-keyframes)
- [Kling 4 Extend](https://nodaro.ai/docs/models/video/kling-4-extend)
- [Kling 2.6 Motion Transfer](https://nodaro.ai/docs/models/video/kling-2-6-motion-transfer)
- [Kling 3.0 Motion Transfer](https://nodaro.ai/docs/models/video/kling-3-0-motion-transfer)
- [Kling Avatar Standard](https://nodaro.ai/docs/models/video/kling-avatar-standard)
- [Kling Avatar Pro](https://nodaro.ai/docs/models/video/kling-avatar-pro)

## Frequently asked questions

### How many credits does Kling 4.0 Flash cost in Nodaro?

Kling 4.0 Flash costs between 143 and 935 credits per run, depending on the settings. Pricing: 242 credits (default 5s 720p — see:Ns:720p variants for exact); 242 credits (5s 720p (the default tier)); 143 credits (3s 720p (min)); 473 credits (10s 720p); 935 credits (20s 720p (max)); 253 credits (per-second anchor with a reference video: billed × (output + max(output, input seconds)) ÷ 8).

### How much does Kling 4.0 Flash cost per second?

Kling 4.0 Flash costs from 31.6 credits per second of output: 253 credits for 8 seconds.

### What can Kling 4.0 Flash do?

Kling 4.0 Flash supports image to video and text to video. Kling 4.0 Flash — the faster, lower-cost Kling 4.0 at 720p, up to 20s with native audio; a start frame, reference images, videos and characters (each can carry a voice clip), or plain text.

### Which Nodaro nodes can run Kling 4.0 Flash?

Choose Kling 4.0 Flash as the model on the Generate Video node and the Generate Video Pro node.

### How long are Kling 4.0 Flash clips?

Kling 4.0 Flash makes clips of 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 and 20 seconds.

### Which aspect ratios does Kling 4.0 Flash support?

Kling 4.0 Flash supports auto, 16:9, 9:16, 1:1 and 21:9.