Overview
All agents inherit the same underlying model's tendencies. Prompt diversity can produce different perspectives, but it does not eliminate vulnerabilities associated with using only one model family.
The default mode can also reach a materially different conclusion from the cross-vendor mode. In the business example, the single-model council favored scaling the existing membership, while retaining high-ticket work as a secondary cash bridge and lead source. That recommendation should be understood as the output of one council configuration, not as an architecture-independent result.