Cases reveal one stage at a time. Before each reveal, log your differential and the reasoning behind it — the terminal keeps the full trail so you can see where your thinking held up, and where it anchored too early.
Runs entirely in your browser. No data leaves this page — nothing is sent to a server. Educational reasoning practice only, not diagnostic guidance and not for real patient care.
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1Model
Claude
Gemini
ChatGPT
Other
No key saved for this provider yet.
Where do I get a key?
2Case
Case terminal
Differential tracker
No hypotheses yet — add at least one before revealing new data.