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OpenAI

Frontier AI lab building general-purpose AI systems including ChatGPT and GPT-5
AI 📍 San Francisco, CA Founded 2015
Current Valuation
$852B
as of 2026-Q1
CENTURION
OpenAI is the AI lab behind ChatGPT, GPT-5, and the o-series reasoning models. Originally founded as a non-profit, it now operates a capped-profit subsidiary majority-funded by Microsoft and SoftBank. In March 2026 it closed a record $122B primary round at an $852B post-money valuation (anchored by Amazon, Nvidia, and SoftBank) — the largest private fundraise on record, ranking it among the most valuable private companies in the world.

Company Profile

CEO
Sam Altman
Founded
2015
HQ
San Francisco, CA
Employees
~5000
Total Raised
$182B
Est. Revenue
$12B (2026-Q1)
Growth
~100% YoY
Last Round
Late-stage primary — $122B (Mar 2026) · Lead: SoftBank
IPO Status
rumored

Fundraising Status

Late-stage primary · $122B · 4 mo ago
rumoredTotal raised $182B5 disclosed rounds

Growth & Valuation

Valuation across funding rounds
Valuation growth across funding rounds$29B$852BJan '23Mar '26
Capital raised per round
Capital raised per funding round$10BMicrosoft investment$6.6BLate-stage$40BLate-stage$6.6BSecondary (tender)$122BLate-stage primary
Estimated revenue trend
Estimated revenue trend$1.6B$12B20232025
Charts built from publicly disclosed funding rounds and revenue estimates. Approximate, not real-time, not investment advice.

Funding History

RoundAmountDateLead InvestorPost-Money
Late-stage primary$122BMar 2026SoftBank$852B
Secondary (tender)$6.6BOct 2025Employee tender$500B
Late-stage$40BMar 2025SoftBank$300B
Late-stage$6.6BOct 2024Thrive Capital$157B
Microsoft investment$10BJan 2023Microsoft$29B

Founders & Key People

Sam AltmanGreg BrockmanIlya SutskeverElon MuskWojciech Zaremba

Investors

Microsoft · SoftBank · Nvidia · Amazon · Thrive Capital · Khosla Ventures · Sequoia · Andreessen Horowitz · MGX · T. Rowe Price

Products

  • ChatGPT (consumer)
  • GPT-5 / o-series API
  • Sora (video)
  • DALL-E 4
  • Operator (agents)
  • ChatGPT Enterprise

Competitors

Anthropic · xAI · Google DeepMind · Mistral AI
AIFoundation ModelsDecacornTop 3 AI Lab
Private-company numbers are not real-time. Reflects publicly disclosed valuations from press releases, news reports, and tender offers as of 2026-Q1. Refreshed quarterly.