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MoneyThe story, in brief

New funding to build towards AGI

$40B. OpenAI just closed a mega-round at $300B post—here's what it means for the compute arms race.

Reporting by OpenAI Blog 1 min brief
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Capital and the next generation of AI ventures.AI illustration by KeyNews
The KeyNews take

Why it matters

OpenAI's $40B funding at $300B valuation is a major signal of capital concentration in frontier AI and compute scaling. This directly impacts the competitive landscape for model development and infrastructure buildout across the industry.

The key facts

5 to know

  1. $40B funding round

  2. $300B post-money valuation

  3. 500M weekly ChatGPT users cited as user base metric

  4. Stated use: compute infrastructure scaling and AI research

  5. Published March 31, 2025

Go to the source

OpenAI Blogopenai.com

Publisher excerpt: Today we’re announcing new funding—$40B at a $300B post-money valuation, which enables us to push the frontiers of AI research even further, scale our compute infrastructure, and deliver increasingly powerful tools for the 500 million people who use ChatGPT every week.
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The wider picture

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Paper-cut illustration of amber paths carrying capital toward a small coral research venture between larger buildings.
AI illustration by KeyNews
Money01

Following OpenAI, Anthropic is also reportedly postponing its IPO

A major frontier lab's IPO delay signals investor pressure to demonstrate profitability amid soaring infrastructure spend. The $1.25B/month SpaceX compute deal and unresolved security risks are now public listing risks.

The Decoder
Paper-cut illustration of amber paths carrying capital toward a small coral research venture between larger buildings.
AI illustration by KeyNews
Money02

Big Tech uses guarantees to keep $300bn AI exposure off balance sheets

Tech giants are using corporate credit guarantees to fund AI infrastructure below the waterline, lowering financing costs while obscuring the true scale of AI capex from investors and regulators. This is a material shift in how the $1T+ compute buildout is being financed.

Financial Times Technology
Paper-cut illustration of amber paths carrying capital toward a small coral research venture between larger buildings.
AI illustration by KeyNews
Money03

Investors weigh whether Anthropic can sustain surging revenues post-IPO

Anthropic faces a critical valuation and durability question ahead of a potential IPO: can it maintain revenue growth and margins against OpenAI's competitive push, cheaper rivals, and the inherent cost of safety-first R&D? Investors are scrutinizing the durability of the frontier-lab business model itself.

Financial Times Technology