Key Takeaways
- ✓Annualized revenue topped $25B, up from ~$1.6B in 2023 — a 15x increase in three years
- ✓Actively preparing for IPO, potentially in late 2026 at a reported $840B valuation
- ✓Restructured from non-profit to capped-profit model to enable public listing
- ✓Competitors accelerating: Anthropic (~$5B ARR), Google Gemini, Meta AI, xAI (Grok)
- ✓500M+ weekly active users — ChatGPT remains the world's most popular AI product
The Revenue Journey: From $1.6B to $25B
OpenAI's revenue growth ranks among the fastest in technology history. From approximately $1.6 billion in 2023, the company hit $3.4 billion in Q4 2023 alone, surpassed $11 billion for all of 2024, and reached $25 billion annualized in early 2026. This figure reflects the explosion of enterprise AI demand, where ChatGPT Enterprise and the API serve as core revenue pillars.
-> If you had invested $10,000 in OpenAI at its Series A ($29M valuation), that stake could be worth over $2.9 billion at the current $840B reported valuation.
Revenue Drivers
OpenAI's $25 billion revenue does not come from a single product. ChatGPT Plus and Team ($20-25/month per user) create a massive individual user base. ChatGPT Enterprise expands into the corporate market with higher pricing and data security commitments. The developer API remains a major revenue source, with millions of applications integrating GPT-4o and newer models.
-> With 500M weekly users, if just 5% convert to paid ($20/month), ChatGPT Plus alone generates $6B/year — showing immense untapped growth potential.
IPO Mechanics: Structure, Timeline, Valuation
OpenAI's path to public markets is more complex than most tech companies. Founded as a non-profit in 2015, the company had to restructure into a capped-profit model to raise capital from investors and prepare for an IPO. This process involved creating a for-profit subsidiary, then gradually transitioning all operations to the new structure.
The discussed $840 billion valuation would place OpenAI among the top 10 most valuable companies globally — alongside the likes of Berkshire Hathaway and TSMC. Per ZestLab analysis, this implies a P/S (price-to-sales) ratio of roughly 33x — high, but not unreasonable for a hyper-growth AI company.
-> If OpenAI IPOs at $840B, it would be the largest tech IPO in history — surpassing Saudi Aramco's $1.67 trillion debut in 2019.
Valuation Timeline
Microsoft became the primary strategic partner, providing Azure cloud infrastructure for OpenAI. This deal laid the groundwork for the explosive growth that followed.
-> Microsoft's $1B investment in 2019 is now estimated to be worth over $50B — a 50x return in 7 years.
Following ChatGPT's breakout success (launched Nov 2022), OpenAI raised additional capital at a $29B valuation. Microsoft contributed another $10B in a multi-year deal.
-> ChatGPT reached 100M users in just 2 months — the fastest consumer app adoption in history.
With 2024 revenue reaching $11B, OpenAI raised funds at a $157B valuation. Sam Altman returned as CEO after his brief departure in late 2023, stabilizing leadership.
-> Valuation grew 5.4x in just 2 years — demonstrating a growth pace rare even in the tech industry.
According to multiple reports, pre-IPO discussions have placed OpenAI's valuation at up to $840B. Revenue surpassing $25B annualized and 500M weekly users provide the foundation for this figure.
-> $840B is comparable to Thailand's GDP ($543B) or Switzerland's ($818B) — a single AI company valued like an entire country.
Competitive Landscape
OpenAI no longer dominates the AI market unchallenged. Anthropic, founded by ex-OpenAI employees, has reached approximately $5B in annual revenue with its Claude model. Google Gemini is deeply integrated into its search and Android ecosystem. Meta AI releases free Llama models, creating significant competitive pressure. Elon Musk's xAI with Grok is expanding rapidly via the X (Twitter) ecosystem. Anthropic is also preparing for an IPO.
-> Despite leading revenue, OpenAI is burning cash rapidly — estimated at $8-10B/year on GPU infrastructure. Net profitability remains a key question ahead of the IPO.
Risks and Challenges
Despite impressive growth momentum, OpenAI faces real risks. Massive infrastructure costs — estimated at $8-10B/year for GPUs and compute — compress profit margins. Intensifying competition from open-source models (Meta Llama, Mistral) threatens pricing power. Copyright lawsuits from publishers and artists could create significant legal liabilities.
Additionally, the non-profit to for-profit restructuring is not fully complete and may face legal challenges. New EU AI regulations (EU AI Act) and potential US legislation could restrict certain use cases. Heavy reliance on Microsoft for cloud infrastructure is a double-edged sword — Microsoft is both a partner and competitor through Copilot.
-> For Vietnamese investors eyeing the OpenAI IPO: distinguish between revenue growth (impressive) and profitability (unclear). A 33x P/S ratio demands strong faith in the future.
What the OpenAI IPO Means for the AI Industry
If it happens, OpenAI's IPO would be a watershed moment for the entire AI industry. The massive valuation would set a benchmark for other AI companies, from Anthropic to smaller startups. Venture capital funds would use this as a reference to value their AI portfolios, creating a ripple effect across the market.
More importantly, a successful IPO would prove that AI is not merely hype but a real business capable of generating massive revenue. This could open the floodgates for new capital flowing into AI research, application development, and infrastructure — especially in emerging markets.
Follow more OpenAI coverage at OpenAI Hub.
-> In Vietnam, the AI startup ecosystem (FPT AI, VinAI, Zalo AI) could benefit from spillover effects: as global investors allocate more to AI, venture capital flowing into Southeast Asian AI also increases.
Strategic Partners: Microsoft and Amazon
Two tech giants — Microsoft and Amazon — form the backbone of OpenAI's cloud compute infrastructure. Microsoft has invested over $13 billion total and provides exclusive Azure GPUs for model training. In return, Microsoft integrates GPT across its entire Office ecosystem, GitHub Copilot, and Bing.
Amazon entered later but provides critical infrastructure diversification. The Amazon Web Services (AWS) deal allows OpenAI to reduce dependence on a single cloud provider — a key factor in convincing IPO investors that the company is not locked into Microsoft.
-> With estimated infrastructure costs of $8-10B/year, OpenAI needs both Microsoft and Amazon to secure enough GPUs — the AI race is becoming an infrastructure race.
References
- TechCrunch — In 2026, AI Will Move From Hype to Pragmatism — January 2, 2026
- AI and News — Latest AI News March 2026 — March 2026
- ZestLab — OpenAI Hub — Continuously updated