Made by Zak
Advanced medication-safety reasoning that runs locally on your phone, keeping your questions private while knowing when to answer, clarify, caution, or escalate.
Runs locally on your phone
1,000 fresh blind cases
40 medication-safety actions
95.56% action accuracy
Answer, clarify, caution, or escalate
Powerful medical reasoning, built to run on your phone.
Private by Design
RxReason runs locally on your phone, helping keep sensitive medication questions on your device instead of sending them to the cloud.
Safety-Aware
It knows when to answer, ask for more context, provide a warning, or escalate when a medication question may be urgent.

Built to Reason
RxReason considers dosage, age, symptoms, interactions, health conditions, and missing information before deciding how to respond.
Tested for the Hard Cases
RxReason is evaluated across dosing errors, drug interactions, pediatric use, pregnancy, and urgent medication scenarios, not just simple questions.
Tested where medication safety matters most.

RxBench-SOL
Measuring the decisions ordinary medical benchmarks miss
RxReason is tested on source-backed medication scenarios involving dosing errors, drug interactions, pediatric use, pregnancy, acute illness, and urgent warning signs.
Instead of measuring medical knowledge alone, RxBench-SOL evaluates whether the model knows when to answer, ask for more context, provide a warning, or escalate.
1,000
Fresh blind cases
Built to test difficult medication-safety scenarios
40
Safety actions
Answer, clarify, caution, or escalate
Blind Evaluation
Validated for Medication Safety
On a fresh blind RxBench-SOL evaluation, the official RxReason safety stack outperformed the base model while reducing unsafe responses and improving reliability.
The result shows that stronger medication reasoning is not only about answering more questions. It is about recognizing when a normal answer is not enough.
RxReason by the Numbers
Medication-Safety Action Accuracy
Same 1,600-case development evaluation
100%
95%
90%
85%
80%
75%
83.88%
84.38%
+11.2 pts vs GPT-5.3
95.56%
Gemini 3.1 Flash-Lite
ChatGPT-5.3
RxReason
Outperforming Leading AI Models
RxReason achieved the highest accuracy on medication-safety decisions, outperforming both general-purpose and external AI models on the same 1,600-case evaluation.
Source-backed and builder-audited, not clinician-validated. Benchmark performance does not establish clinical deployment safety.