sd25tests — Seedance 2.5 escalation lane

Input: the photo

AI-generated seed (848×1264). Sent as-is to Seedance 2.5 i2v, 480p, 10s.

Output: he dances, with born-synced music

Frame 0 = the photo (corr 0.9901). Photoreal AI human accepted — no moderation. Model self-built photo-hold → beat-drop → ignition. Flaw: hold ran 4.8s vs 0.5s asked (fixed via beat-listed prompts below).

S1 — pier man, 9:16 crop

Free crop of the proven P0 seed (711×1264). Tighter framing; least room for the camera arc.

S2 — pier man, wide ($0.21)

Gemini edit-gen: photographer three steps back, same identity/outfit/light. 1536×2752. Headroom + floor space for the arc + big moves. Recommended.

S3 — grandma, same pier ($0.21)

Casting option: early-70s woman, identical scene and pose. The comedy-casting lever if you'd rather escalate on her.

PROMPT A — "Stage Transform" (full bet)

Dance → camera arc → scene transforms into a night stage w/ crowd + confetti → freeze on last downbeat. Risk: env-transform + arc + 15s sits right at the known multi-beat accuracy cliff.

0-1s: He stands perfectly still, exactly as in the photo.
1-2s: On the first hard downbeat he snaps into a confident dance -
shoulders bouncing, arms swinging on the beat. Camera holds still.
2-6s: His dance grows bigger - footwork, one clean spin, a huge grin -
while the camera begins a slow arc around him, the railing sweeping
behind him.
6-10s: Mid-spin the scene around him transforms into a night stage with
colored spotlights and a cheering crowd; he and his clothes stay exactly
the same; the beat keeps driving.
10-14s: He rides the chorus with bigger moves as confetti falls; the
camera completes its arc to face him head-on.
14-15s: On the final downbeat he freezes in a triumphant pose, confetti
drifting.

(one continuous upbeat dance track with a strong beat, building to a
chorus) <crowd cheering after the scene change>
Hold his exact face, hair, striped polo, white shorts and body shape
throughout. One single continuous take, no cuts.
No subtitles, no captions, no on-screen text, no watermarks.

PROMPT B — "Pier, Camera Arc" (safe escalation)

Same beats, stays on the pier: camera arc + clouds break to golden light + landed finale. No scene swap = lower drift risk.

0-1s: He stands perfectly still, exactly as in the photo.
1-2s: On the first hard downbeat he snaps into a confident dance -
shoulders bouncing, arms swinging on the beat. Camera holds still.
2-8s: His dance grows bigger - footwork, a clean spin, a jump, a huge
grin - while the camera slowly arcs halfway around him, sea and railing
sweeping behind.
8-13s: The clouds break and warm golden sunlight washes over the
promenade as he rides the chorus with his biggest moves; camera
completes the arc to face him head-on.
13-15s: On the final downbeat he freezes in a triumphant pose, arms
spread, golden light.

(one continuous upbeat dance track with a strong beat, building to a
chorus)
Hold his exact face, hair, striped polo, white shorts and body shape
throughout. One single continuous take, no cuts.
No subtitles, no captions, no on-screen text, no watermarks.

Input: S1

The photo, as picked.

Output: the escalation take

QC: frame 0 = the photo · ignition ~2s on beat (P0's 4.8s hold FIXED by the beat list) · camera arcs · pier dissolves into night stage ~6.5-7.5s via light-bloom (crowd materializes as light ghosts — reads cinematic, not glitchy) · confetti chorus · fist-up freeze on the final downbeat · no text/watermarks. Drift: a belt appears on his shorts in the finale; mild global relight at frame 0 (corr 0.90 vs P0's 0.99).