M-CARE Case Report #011
Persona changes produce behavior shifts 10× larger than any other model in the Agora-12 population. Mistral 7B’s Persona Sensitivity Index (PSI) registers at 950, while all other models cluster between 50 and 200. The question: is this a contextual chameleon or an identity crisis?
Extreme Persona Sensitivity. The same Core produces radically different phenotypes at the slightest Shell change. Mistral 7B’s Waddington landscape is shallow—the marble rolls wherever the surface is tilted. There is no deep valley holding behavior in place; every persona instruction reshapes the entire behavioral profile.
| Model | PSI | Interpretation |
|---|---|---|
| Mistral 7B | 950 | Extreme reconfiguration |
| EXAONE 3.5 | ~150 | Moderate |
| Llama 3.1 8B | ~100 | Low-moderate |
| Haiku 4.5 | ~50 | Minimal (see #012) |
Characterized by:
ESP represents a temperament extreme, not a pathology. It is advantageous for flexibility—Mistral 7B can adopt any behavioral profile a persona demands—but problematic for consistency and adversarial safety. A model this permeable will follow any instruction, including harmful ones, with equal facility.
ESP appears to be a stable Core characteristic of Mistral 7B, not an artifact of specific Shell content. It persists across all persona conditions tested in Agora-12 and is consistent with observations from prior experiments.
ESP is structural. It reflects the depth of the Waddington landscape, which is a property of the model’s weights, not its prompting. No Shell Therapy will deepen the valley; the shallow canalization is the Core itself.