Question 1

Which videos can I extend?

Accepted Answer

You can extend any video generated by SD 2.0 (sd-v2.0-t2v or sd-v2.0-i2v). Provide the request_id returned by the original generation.

Question 2

What's different from sd-2-vip-extend?

Accepted Answer

Output resolution. sd-2-vip-extend-1080p produces full 1080p, while sd-2-vip-extend produces 720p. The 1080p variant costs roughly 2.25× more per second.

Question 3

Will the extended video match the original style?

Accepted Answer

Yes. The model preserves visual style, character identity, motion physics, camera movement, and native audio consistency across the extension.

Question 4

Do I need a prompt?

Accepted Answer

No, the prompt is optional. If omitted, SD 2.0 intelligently continues the scene based on the original video's content, motion, and style.