OpenAI LP
OpenAI creates a "capped-profit" company to raise capital for compute and talent while serving its mission.
2019
Microsoft invests $1B in OpenAI
Microsoft invests $1 billion and becomes OpenAI's exclusive cloud provider for Azure AI supercomputing.
2021
Anthropic founded with $124M Series A
Anthropic launches with a $124 million round to research steerable, interpretable and robust AI systems.
2023
$450M Series C
$450 million Series C led by Spark Capital, with Google and Salesforce Ventures taking part.
Amazon invests up to $4B
Amazon takes a minority stake and AWS becomes the primary cloud provider, training on Trainium and Inferentia.
2024
New funding round
OpenAI raises $6.6B at a $157B post-money valuation.
Amazon invests $4B more
Amazon invests a further $4 billion and AWS becomes the primary cloud and training partner.
2025
Series E at $61.5B valuation
Anthropic raises $3.5 billion at a $61.5 billion post-money valuation.
$40B funding at $300B valuation
OpenAI raises $40B at a $300B post-money valuation to scale research and compute.
Series F at $183B valuation
Anthropic raises $13 billion at a $183 billion post-money valuation.
Microsoft and NVIDIA partnerships
Anthropic commits $30B to Azure compute; Microsoft and NVIDIA invest up to $15B combined.
2026
$30B Series G at $380B valuation
Anthropic raises $30B led by GIC and Coatue, with $14B run-rate revenue.
$110B funding round
OpenAI raises $110B at a $730B pre-money valuation from SoftBank, NVIDIA and Amazon.
$122 billion funding round
OpenAI raised $122 billion to expand compute and meet demand for ChatGPT, Codex and enterprise.
$65B Series H at $965B valuation
Anthropic raised $65 billion led by Altimeter, Dragoneer, Greenoaks and Sequoia.
Confidential draft S-1 submitted
Anthropic confidentially submitted a draft S-1 registration statement to the SEC.
Confidential S-1 filed with SEC
OpenAI confirms it confidentially submitted a draft S-1 to the SEC, with timing not yet set.
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