
Kling 4.0
Kling 4.0 Reference Video Generation creates 3–30 second videos in 720p or 1080p using up to 10 reference images (@imageN), 5 reference videos (@videoN), 7 subjects and 3 timbres (all referenced via @names). A subject is made of 2–4 images or 1 short character clip to maintain consistency of characters, props or scenes, and character subjects can also be bound to their own voices. 🔸Note🔸: Video input has a lower per-second rate because the input duration is billed as well. No video input (text, images, image subjects or voices only): rate × output duration With video input: rate × (output × 2) when total input duration ≤ output duration; rate × (input + output) when input is longer. Multiple input videos are summed. Example: 10 s output + 5 s input = 20 s; with a 15 s input, 25 s.





