Kling 4.0 Flash

NEW
VideoPremium

Kling AI's fast Kling 4.0 model with native sound, for quick drafts and frequent iteration. Text-to-video, image-to-video and reference-to-video from up to 10 images, 3 to 20 seconds at 720p.

Capabilities

Text to VideoImage to VideoReference to Video

Specifications

Supported Resolutions

720p

Aspect Ratios

16:99:161:121:9

Supported Durations

3s4s5s6s7s8s9s10s11s12s13s14s15s16s17s18s19s20s

Estimated Generation Time

~1-3 min

API Usage

cURL
curl https://www.flixly.ai/api/v1/generate \
  -H "Authorization: Bearer flx_live_..." \
  -H "Content-Type: application/json" \
  -d '{
    "model": "kling-4-0-flash",
    "prompt": "A beautiful sunset over the ocean",
    "type": "TEXT_TO_VIDEO"
  }'

Get your API key from the Developer Portal.

Try Kling 4.0 Flash

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Model Details

Quality Score90/100
TierPremium
TypeVideo
Speed~1-3 min

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