OpenAI

Active#2 worldwide · Foundation models

Develops the GPT models and the ChatGPT assistant, offered to consumers and businesses, and sells API access to developers building their own products.

Artificial intelligence›Foundation models openai.com

HQUnited States

Last roundFunding round · Mar 2026

Uback rankings

How the AI ranks →

Ranking	Tier	Rank	Edition	Next update
Foundation models · worldwide	Top 27	#2	Edition 0 · Oct 2026	4 Jan 2027

Rank historyOct 2026 · #2 Foundation modelsFirst edition: no movements yet.

Estimated valuation

AI · Foundation models ranking (worldwide)

≈ USD 1100bnUSD 740–1700bn · Hectocorn

Hundreds of k$

Millions $

Tens of M$

Hundreds of M$

Unicorn

Decacorn

Hectocorn

Anchor: Last known equity round: Funding round · USD 122bn · Mar 2026
Published valuation: USD 852bn · Apr 2026

An indicative editorial estimate produced by AI, imperfect by nature: neither a financial valuation nor investment advice. Only the market sets a company’s value. Method

Funding history

Date	Round	Amount	Type	Investors
Mar 2026	Funding round	USD 122bn	Equity	Amazon, Nvidia, SoftBank

USD 35bn of Amazon’s USD 50bn depends on an IPO or a technical milestone.

Rounds as cited by Uback’s rankings. Equity, debt and grants are shown separately; only equity rounds count towards the valuation anchor.

Independent analyses

By industry professionals & analysts

Industry professionals and financial analysts can publish their own analysis of OpenAI as a PDF. It must answer at least one of these four questions, and stick to them:

AI valuation: $1100BUndervalued or overvalued?

Versus competitorsHow does it compare?

Who should acquire itStrategic buyers, and why

Who should it acquireAcquisition targets, and why

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What the AI reads

Read by the AI at the next edition.

Comparable companies in foundation models

Full foundation models ranking →

Anthropic#1United StatesHectocorn Safe Superintelligence (SSI)#3United StatesDecacorn Reflection AI#4United StatesDecacorn Mistral AI#5FranceDecacorn

Investors in OpenAI: Amazon · NVIDIA · SoftBank

Last updated: Oct 2026Report an error

Uback is a content publisher and an aggregator of non-binding expressions of interest. It provides no investment advice, receives no mandate and takes part in no transaction. Rankings, ranges and brackets are editorial estimates produced by AI, purely indicative.