Model leaderboards show only the brightest layer of the race. Beneath them sit grid access, capital recovery, inference software, data boundaries, regulatory checks, and operational accountability. A bottleneck at any layer can keep leading capability from becoming a reliable service.

This issue does not declare a winner. Fourteen stories follow five constraint layers to see how the industry changes course—and what new costs each adaptation creates. The evidence cut-off is 24 August 2026.

Model launches show the brightest layer of capability. Industry outcomes still pass through compute supply, tool interfaces, organizational authority, experimental validation, and accountable control. Failure at any interface can stop model capability from becoming reliable output.

This issue does not declare a winner. It follows how capability enters systems, how far the evidence reaches, and how constraints reroute development. The evidence cut-off is 24 August 2026.