OpenAI

AI · Foundation models · Near-IPO · US

IPO expected S-1 filed; ~Sep 2026 target

I want to sellI want to buy

Valuation

$852BIPO target

Deal Score

B+80 / 100

Funding

$122B round closed Mar 2026 (largest private raise on record); Amazon $50B ($35B contingent on IPO/AGI milestone)

Demand

High

IPO window

S-1 filed; ~Sep 2026 target

Top-100 rank

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Valuations are as reported and not verified (this one: IPO target). Deal Score (0-100, graded A+ to C) is Mindcap's own assessment; demand is our desk's read of buyer and seller interest (Emerging, Medium, High). Data as of August 2026. Not investment advice.