> ## Documentation Index
> Fetch the complete documentation index at: https://docs.venice.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Kling 4.0 Flash API

> Kling 4.0 Flash API on Venice: text to video, image to video, reference to video and video editing, up to 720p and 20s clips, from $0.1174 per second.

> [accordion] Plain-text specification
>
> ## Kling 4.0 Flash API
>
> Kling 4.0 Flash is a text to video, image to video, reference to video and video editing model by Kling AI, available on the Venice API as `kling-v4-flash-text-to-video`. Requests are anonymized, so the provider never sees your identity.
>
> ### Kling 4.0 Flash API pricing
>
> | Model ID | Variant | Privacy | Price |
> | - | - | - | - |
> | `kling-v4-flash-text-to-video` | Text to video | Anonymized | from \$0.1174 / sec |
> | `kling-v4-flash-image-to-video` | Image to video | Anonymized | from \$0.1174 / sec |
> | `kling-v4-flash-reference-to-video` | Reference to video | Anonymized | from \$0.1175 / sec |
> | `kling-v4-flash-video-to-video` | Video edit | Anonymized | priced by source |
>
> Clip prices for `kling-v4-flash-text-to-video` with audio:
>
> | Duration | 720p |
> | - | - |
> | Per second | \$0.1174 |
> | 3s | \$0.35 |
> | 5s | \$0.59 |
> | 10s | \$1.17 |
> | 20s | \$2.35 |
>
> Any length from 3 to 20 seconds, priced per second.
>
> ### Kling 4.0 Flash specifications
>
> | Spec | Value |
> | - | - |
> | Provider | Kling AI |
> | Released | Nov 5, 2026 |
> | Privacy | Anonymized |
> | Status | Stable |
> | Modes | text to video, image to video, reference to video and video editing |
> | Resolutions | 720p |
> | Durations | 3–20s, any whole second |
> | Aspect ratios | 16:9, 9:16, 1:1, 21:9 |
> | Audio | Always generated |
>
> ### How to use the Kling 4.0 Flash API
>
> Send requests to `POST https://api.venice.ai/api/v1/video/queue` with `"model": "kling-v4-flash-text-to-video"` and your API key.
>
> ```bash theme={"system"}
> # 1. Queue the job (returns a queue_id)
> curl https://api.venice.ai/api/v1/video/queue \
>   -H "Authorization: Bearer $VENICE_API_KEY" \
>   -H "Content-Type: application/json" \
>   -d '{
>     "model": "kling-v4-flash-text-to-video",
>     "prompt": "Slow aerial drone shot over a misty mountain valley at golden hour",
>     "duration": "5s",
>     "resolution": "720p",
>     "aspect_ratio": "16:9"
>   }'
>
> # 2. Poll until the MP4 is ready
> curl https://api.venice.ai/api/v1/video/retrieve \
>   -H "Authorization: Bearer $VENICE_API_KEY" \
>   -H "Content-Type: application/json" \
>   -d '{ "model": "kling-v4-flash-text-to-video", "queue_id": "<queue_id>" }' --output video.mp4
> ```
>
> ### Related models
>
> * [Flux 3 Max API](https://docs.venice.ai/models/flux-3-max.md): from \$0.0638 / sec
> * [MiniMax H3 Max Recast API](https://docs.venice.ai/models/minimax-h3-max-recast.md): priced by source
> * [Grok Imagine 1.5 Lite API](https://docs.venice.ai/models/grok-imagine-1-5-lite.md): from \$0.024 / sec
> * [Wan 3.0 Prime Pro API](https://docs.venice.ai/models/wan-3-0-prime-pro.md): from \$0.3312 / sec


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