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POST
Kling V4 Flash
Model IDs: kling-v4-flash.

Quick start

Poll the original task with GET /v1/tasks/{task_id}. Check both status and billing_status. Output URLs are in result.videos[0].url[]; download them before expiration. A client timeout does not justify a new submission.

Accepted parameters

This release exposes text/image generation. Video editing, video references and extension are not yet exposed. Kling first-frame requests omit the upstream aspect ratio; framing follows the image.

Billing

Reserve and bill the requested output duration at $0.0964287/second**, 720p. A 3-second quote is approximately **$0.289288. Video-input modes are not exposed and their fees are not added to ordinary generation.

Real outputs

Generated by the named models and archived for public display.