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PubMed vs OpenAlex: catalog facts
PubMed	OpenAlex
Free Free to use, run by a US government agency.	Free Free to search, analyze and reuse.
Web	Web
Over 40 million biomedical citations in one place Advanced search, clinical queries and MeSH browsing	Covers about half a billion scholarly works Web app, API and bulk download
Mostly citations and abstracts; full text depends on PubMed Central or publishers Limited to biomedical and life-sciences subjects	A search catalog rather than an AI reading assistant Analysis beyond the web app needs API or data skills
Web application	Web application, Hosted service
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.