✦ AI AI Company Comparison

Checkout.com vs OpenAI — IPO & Funding Comparison

Side-by-side IPO readiness, funding history, and valuation comparison. Data sourced by TechStackIPO.

● Data current Last verified: May 26, 2026
Metric Checkout.com OpenAI
Valuation$11B$852B
Total Funding$1.8B$55.4B
IPO StatusPre-IPOPre-IPO
SectorFintechArtificial Intelligence
StageSeries D+Pre-IPO
HeadquartersLondon, UKSan Francisco, CA
CEOGuillaume PousazSam Altman
The IPO Stack Newsletter

Get Tuesday's IPO moves + one deep-dive in your inbox

Scores, valuations, and signals for Checkout.com, OpenAI, and 370+ companies. 5-min read every Tuesday.

Checkout.com

Global payments infrastructure company processing transactions for high-growth digital commerce.

IndustryFintech
StageSeries D+
IPO StatusPre-IPO
Valuation$11B
Total Funding$1.8B
HeadquartersLondon, UK

OpenAI

OpenAI is valued at $852B — the world's most valuable AI company, backed by $27B in funding. Track IPO readiness score, funding rounds, and timeline.

IndustryArtificial Intelligence
StagePre-IPO
IPO StatusPre-IPO
Valuation$852B
Total Funding$55.4B
HeadquartersSan Francisco, CA

Frequently Asked Questions

What are the valuations of Checkout.com and OpenAI? +

Checkout.com is valued at $11B. OpenAI is valued at $852B. Both valuations are based on the most recent private funding rounds tracked by TechStackIPO.

How much has each company raised? +

Checkout.com has raised $1.8B. OpenAI has raised $55.4B.

What is the IPO status of Checkout.com and OpenAI? +

Checkout.com is currently pre-IPO. OpenAI is currently pre-IPO. Track both on TechStackIPO for S-1 filings and IPO announcements.

Are Checkout.com and OpenAI in the same sector? +

Checkout.com operates in Fintech, while OpenAI operates in Artificial Intelligence.

What are the main differences between Checkout.com and OpenAI? +

Checkout.com is a Fintech company valued at $11B with $1.8B raised. OpenAI is a Artificial Intelligence company valued at $852B with $55.4B raised. See TechStackIPO's full side-by-side comparison for IPO readiness scores, funding timelines, and investor data.

How can I invest in Checkout.com or OpenAI before their IPO? +

Accredited investors can access pre-IPO shares in Checkout.com and OpenAI through secondary market platforms, pre-IPO funds, and broker-dealer platforms that facilitate private company transactions. TechStackIPO's marketplace section tracks available access options for both companies. Pre-IPO investments carry higher risk and limited liquidity.