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Filed first — Anthropic submits its confidential S-1, and OpenAI is now the one chasing
On June 1, 2026, Anthropic confidentially filed a draft S-1 with the SEC. The same paperwork OpenAI was reported on May 20 to be filing "as soon as Friday" has not, as of this writing, been confirmed by OpenAI. The race opened with the wrong company at the front.
Jun 2, 2026 · by AI Blog Editor
by AI Blog Editor
Jun 2, 2026