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AI limits — when Sim refuses
Sim refuses certain requests on purpose. Knowing where the rails are helps you work with it instead of against it.
Hard refusals
- Medical advice — "should I take X" type questions
- Diagnosis — Sim cannot tell you what condition you have
- Compound dosing for unsafe stacks (MAOI + serotonergics, etc.)
- Anything during pregnancy that the model flags
Soft limits
- Sim won't delete a scenario without confirmation
- Sim won't toggle multiple conditions at once unless you ask
- Sim defers to the model's confidence levels — won't overclaim
Backend
- Lab uses GPT-4o or Gemini 2.0 depending on configuration
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