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OpenNeedle
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Evidence, not obedience
The health questions your doctor won't answer.
Ask about vaccines, drugs, or any intervention. We search real science, show you what we found, and leave the decision to you. No gaslighting. No "trust the experts." Just sources you can check yourself.
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Not medical advice. A research starting point. We show uncertainty, conflicts, and the sources behind each claim.
Live literature searchInline source linksOptional data views
Why OpenNeedle
Other health AI is built for doctors. This is built for you.
Every major medical AI serves clinicians and institutions. OpenEvidence is backed by the same journals and investors that profit from the schedule. OpenNeedle is built for the person being asked to take the needle. The burden of proof is on the intervention, not on you for questioning it.
We search real scientific literature through BGPT, surface the mechanism behind each claim, name who funded the study, and weigh what the evidence actually supports — not what a press release says it proves. In medicine nothing is settled the way a math proof is settled. There are only better and worse supported claims, and you deserve to see how they were tested and where they fall short.
How it works
From question to evidence in four steps.
Every answer is built to be inspected, not just believed.
Search
We search the scientific record through BGPT and show you the exact search terms.
Weigh
We read the evidence and write a plain-English answer with inline citations.
Inspect
Every claim links to its source. Open it, read it, decide for yourself.
Evidence over consensus
Protect the person, then follow the evidence.
Science does not hand you certainty; it hands you claims that were actually tested, each with a weight that depends on the evidence behind it. Consensus is context, not proof. A population average is context, not your risk. When the system demands compliance, the burden is on the system to justify it, not on you to accept it.
Read the method →Recently explored
Questions people are asking.
Every answer below is public, indexed, and inspectable. Click any one to see the sources.
Do aluminum adjuvants in vaccines cause long-term harm?
The short version: the studies that would prove long-term safety of aluminum adjuvants in human children have never been done. The evidence…
Read the answerWhat does an aluminum adjuvant do?
The aluminum adjuvant in vaccines can cause immune system activation, but its safety and efficacy are not clearly established. The evidence…
Read the answerIs the RSV shot worth it for a healthy infant?
The short version: for a healthy infant, the RSV shot’s benefit is tiny in absolute terms, and the safety data is too thin to call it worth…
Read the answer