✦ AI AI Company Comparison

OpenAI vs Temporal — IPO & Funding Comparison

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

● Data current Last verified: May 24, 2026
Metric OpenAI Temporal
Valuation$852B$3.2B
Total Funding$55.4B$420M
IPO StatusPre-IPOPre-IPO
SectorArtificial IntelligenceEnterprise Software
StagePre-IPOSeries B
HeadquartersSan Francisco, CABellevue, WA
CEOSam AltmanMaxim Fateev
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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

Temporal

Open-source workflow orchestration platform for building durable distributed applications.

IndustryEnterprise Software
StageSeries B
IPO StatusPre-IPO
Valuation$3.2B
Total Funding$420M
HeadquartersBellevue, WA

Frequently Asked Questions

What are the valuations of OpenAI and Temporal? +

OpenAI is valued at $852B. Temporal is valued at $3.2B. Both valuations are based on the most recent private funding rounds tracked by TechStackIPO.

How much has each company raised? +

OpenAI has raised $55.4B. Temporal has raised $420M.

What is the IPO status of OpenAI and Temporal? +

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

Are OpenAI and Temporal in the same sector? +

OpenAI operates in Artificial Intelligence, while Temporal operates in Enterprise Software.

What are the main differences between OpenAI and Temporal? +

OpenAI is a Artificial Intelligence company valued at $852B with $55.4B raised. Temporal is a Enterprise Software company valued at $3.2B with $420M raised. See TechStackIPO's full side-by-side comparison for IPO readiness scores, funding timelines, and investor data.

How can I invest in OpenAI or Temporal before their IPO? +

Accredited investors can access pre-IPO shares in OpenAI and Temporal 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.