Gemini's project-wide key-restriction 403 is cleared (key restricted to the
Generative Language API), so Gemini rejoins the grid. Full 2×4 ranking
(pipeline/debate × Claude/GLM-4.7/Gemini/heterogeneous), judge-ranked 1-8:
D2 > P2 > P3 > P1 > D3 > PG > DG > D1.
Adds a third finding: model strength is task-dependent — Gemini-2.5-flash
placed 2nd on the §7.3 concision brief but 6th-7th here on reasoning
("generic list", "idea repeated"): concise-but-shallow. Reinforces that the
optimal config is a joint choice over {topology × per-role model × task}.
Gemini cells ran via the durable async run path (enqueue → worker → poll).
Co-Authored-By: Claude Opus 4.8 <[email protected]>