One brief.
Two interpretations.

GPT-6.1 Sol and Claude Opus 5.5 made a 15-second film for OFFLINE, a fictional makers gathering. Both received the same brief, fonts and Remotion starter, then the same revision request. Both ran at High effort.

The revision

Change the hours to 10 AM–8 PM. Add “All materials included.” beneath them. Keep the first 9 seconds and all other copy unchanged. Preserve the 15-second duration and v1; save revised source separately and render v2.mp4.

Read the shared brief. Editable projects and local fonts are in the source folder. Font licenses are included. This is one task through two provider workflows, not a general benchmark.