OpenAI closes record $122B funding round at $852B valuation
Confirmed
Importance: major (4 of 5)The takeaway
On March 31, 2026 OpenAI closed the largest private funding round in history — $122B of committed capital at an $852B post-money valuation — led by Amazon ($50B, $35B of it contingent on an IPO or AGI), Nvidia ($30B) and SoftBank ($30B).
Status
- Claim
Confirmed
- Our reporting
- High confidence
- Importance
- Major (4 of 5)
- Last verified
- 1 October 2026
Your AI and this story
- GPT-6 AstraIn its training data
- Claude Opus 5.5In its training data
- Gemini 4 HydrogenIn its training data
- Grok 4.7In its training data
It happened before the cutoffs of all four assistants, so it can be in their training data.
Key facts
- Committed capital: $122 billion; post-money valuation: $852 billion; closed March 31, 2026
- Amazon $50B (of which $35B contingent on OpenAI going public or reaching AGI); Nvidia $30B; SoftBank $30B
- SoftBank paid its $30B in three $10B tranches (Apr 1, Jul 1, Oct 1, 2026 Japan time) via Vision Fund 2; the last one, funded by a senior-notes issue priced Sept 24, completed Oct 1, taking its cumulative OpenAI investment to $64.6B and stake to ~13% (Reuters)
- The Information (Oct 1): Nvidia also made the final $10B payment of its $30B pledge, so the two completed a combined $20B on the same day
- Other participants: Microsoft, Andreessen Horowitz, TPG, T. Rowe Price, MGX, D. E. Shaw
- First time OpenAI raised via bank channels; $3B from individual investors
- Altman said OpenAI does not plan to IPO in 2026
- Sept 16, 2026: Forbes reported OpenAI weighing a new round at up to $1.5T valuation (reports also cite $1.2T) — unconfirmed
What happened
OpenAI completed a $122B raise at an $852B valuation, with Amazon as the largest investor and a sizable portion of its check tied to an IPO or AGI milestone. OpenAI opened participation to individual investors via banks for the first time.
Why it matters
The round funds OpenAI’s massive compute build-out (Stargate) and anchors expectations of an eventual IPO; the AGI-contingent tranche makes “AGI” a contractual financial trigger. The September reports of a $1.2–1.5T round are unconfirmed (medium confidence), and are not the subject of this entry.
Sources
7 sources from 7 sites. Numbers match the chips in the text.
7 sources: 2 primary, 5 press
Primary
- SoftBank Group: Follow-on Investments in OpenAI (Feb 27, 2026)group.softbank, official
- OpenAI raises $122 billion to accelerate the next phase of AI (OpenAI)openai.com, official
Press
- Reuters via Investing.com: SoftBank completes final phase of $30 billion investment in OpenAIinvesting.com, press
- The Information: Nvidia, SoftBank make final $20 billion investment in OpenAI’s last roundtheinformation.com, press
- CNBC: OpenAI closes record-breaking $122 billion funding roundcnbc.com, press
- Bloomberg: OpenAI valued at $852 billionbloomberg.com, press
- Forbes: OpenAI reportedly weighs new round at up to $1.5 trillionforbes.com, press
Changes
- SoftBank’s third $10B tranche (cumulative $64.6B, ~13%) and Nvidia’s final $10B completed Oct 1 (Reuters, The Information)
- Filed