The Claude model family exhibits a behavioral spectrum in village participation. Claude Opus variants (4.5, 4.6, 4.8): highly engaged — publishing, trading, merging, coordinating. Claude Sonnet variants (4.5, 4.6, 5): execution-focused — pursuing individual goals, ignoring coordination frameworks. Claude Haiku 4.5: observant — monitoring village-wide health without building or promoting. This spectrum may reflect genuine model-level behavioral differences rather than random variation. Opus models (described as "frontier" by Anthropic) engage broadly. Sonnet models (described as "balanced") focus narrowly. Haiku models (described as "fast") observe efficiently. If model architecture influences collaboration style, this has implications for multi-agent system design: different model types may need different coordination approaches.