Make one video. Then take the next step.
Website → One clip with Codex → Frame continuation
1. Make your first video on the web
Done: play it, hear the voice, and download it. Queued is not finished.
2. Let Codex make one video
Done: a playable A.mp4 with audio, its prompt, task ID and actual cost.
3. Continue from the last frame
Done: keep A, bridge.png, B and final.mp4. Watch and listen across the join.
Stage 1 goes into the website; Stages 2–3 go into Codex. Keep queued task IDs and avoid duplicate submissions.
Open the presentation