This report synthesises findings from 9 peer-reviewed papers addressing the following research question: How does increasing the diversity of synthetic data generators impact the cross-domain generalization of tabular foundation models on the TabBench benchmark. 9 claims were extracted from source literature; 9 were independently verified against retrieved documents. An automated multi-reviewer quality assessment produced a score of 8.3/10. This report is a machine-generated literature synthesis and does not constitute original research.Research goal: How does increasing the diversity of synthetic data generators impact the cross-domain generalization of tabular foundation models on the TabBench benchmark?Autonomous literature synthesis. Automated review score: 8.3/10. Full text and citation available at Assignee Research.