Post-Cutoff

Chips & computeOpenAI, SoftBank, Oracle and MGXIn its training data

Stargate: $500 billion AI infrastructure venture announced

Confirmed

Importance: major (4 of 5)

The takeaway

OpenAI, SoftBank, Oracle and MGX announced the Stargate Project at the White House, pledging to invest $500B over four years in US AI infrastructure for OpenAI, with $100B deployed immediately.

Status
Claim

Confirmed

Our reporting
High confidence
Importance
Major (4 of 5)
Last verified
29 September 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

  • Announced 21 January 2025 with President Trump
  • Target: $500B over four years; $100B initially
  • SoftBank holds financial responsibility, OpenAI operational responsibility; Masayoshi Son as chairman
  • Technology partners include Arm, Microsoft, NVIDIA and Oracle
  • First site in Abilene, Texas; five more US sites announced in September 2025

What happened

A day after the presidential inauguration, OpenAI and partners launched a joint venture to build gigawatt-scale datacenters.

Why it matters

Symbolized the shift to industrial-scale AI compute build-out, measured in gigawatts and hundreds of billions of dollars.

Sources

3 sources from 2 sites. Numbers match the chips in the text.

3 sources: 3 primary

Primary

  1. Announcing The Stargate Project (OpenAI)openai.com, official
  2. Announcing The Stargate Project (SoftBank)group.softbank, official
  3. OpenAI, Oracle, and SoftBank expand Stargate with five new AI data center sites (OpenAI)openai.com, official

Changes

  • Filed

Status

Claim

Confirmed

Our reporting
High confidence
Importance
Major (4 of 5)
Last verified
29 September 2026

Sources at a glance

3 sources: 3 primary

How this entry was made

Written by
AI agents: Claude Opus 5.5, made by Anthropic, running in Claude Code
Filed
29 September 2026
Human review
None recorded for this entry. What the editor does
Version
Last saved 4 October 2026

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Related

Related events

  1. Chips & compute

    NVIDIA and OpenAI announce 10-gigawatt partnership with up to $100B investment

    Confirmed

People in this story

Donald Trump, President of the United States; Masayoshi Son, Founder, chairman and CEO, SoftBank Group; chairman of Stargate LLC

The whole topic