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acquisitionAnnounced · Mar 9, 2026AI securitySource · MagazinesArticle · Factual
OpenAI acquires Promptfoo
David Najork · Founding Software Engineer
Published · Updated · 1 min read
Deal value
—
Target
Promptfoo
Acquirer
OpenAI
Full Acquisition
Status
Announced
OpenAI agreed to acquire Promptfoo. Reported deal value: Undisclosed. Status: Announced. Sector: AI security. Target headquarters context: Location not specified.
This page summarizes publicly available information about the transaction as of 2026-03-09. Figures and status may change as filings and press coverage update.
promptfoo As concerns about safeguarding AI systems continue to grow across the technology industry, Open AI has reached a deal to acquire Promptfoo
Deal timeline
Announced
Mar 9, 2026 · thetechportal.com
Additional milestones (proxy, vote, close) appear as filings and press updates are indexed.
Sector context
This transaction is classified in AI security. Figures and status may change as sources update.
Sources: thetechportal.com · Primary article · FireStrike proprietary index