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Fact

OpenAI Foundation — Headquarters: San Francisco

OpenAI

confirmed95% confidence

1 evidence check

Last checked: 3/26/2026

The source directly confirms that OpenAI has/had headquarters in San Francisco through multiple image captions referencing the Pioneer Building as OpenAI's headquarters location. While the captions use past tense ('former headquarters'), they explicitly establish San Francisco as a headquarters location for OpenAI. The claim is confirmed by the source material.

Evidence — 1 source, 1 check

confirmed95%primaryHaiku 4.5 · 3/26/2026
Found: The source text includes an image caption describing 'Pioneer Building, San Francisco (2019)' as 'Ancien siège social d'OpenAI à [[San Francisco]] en Californie' (Former headquarters of OpenAI in San

Note: The source directly confirms that OpenAI has/had headquarters in San Francisco through multiple image captions referencing the Pioneer Building as OpenAI's headquarters location. While the captions use past tense ('former headquarters'), they explicitly establish San Francisco as a headquarters location for OpenAI. The claim is confirmed by the source material.

Debug info

Record type: fact

Record ID: Lt56o7tCCg

Source Check: OpenAI | Longterm Wiki