The Anthropic $20B round is entering its final stages, with the AI startup closing in on a massive new fundraising that values the company at $350 billion, according to Bloomberg. Investor demand has reportedly been so strong that Anthropic is raising roughly twice the amount it initially planned.

The fundraising comes just five months after Anthropic raised $13 billion in equity, highlighting how quickly frontier AI labs are moving to secure capital amid escalating competition and the soaring cost of compute.

Major Investors Back the Anthropic $20B Round

Funds expected to participate in the Anthropic $20B round include Altimeter Capital Management, Sequoia Capital, Lightspeed Venture Partners, Menlo Ventures, Coatue Management, Iconiq Capital, and Singapore’s sovereign wealth fund. However, the majority of the funding is said to be coming from Anthropic’s strategic partners, Nvidia and Microsoft.

The scale of the round reflects the growing urgency among leading AI companies to lock in resources as model development and deployment become increasingly capital-intensive.

Product Momentum Strengthens Anthropic’s Position

Anthropic is building on recent momentum, particularly the rollout of its coding agents, which have been widely praised by software engineers for boosting coding productivity. Last week, the company also released new models focused on legal and business research, a move that reportedly unsettled publicly traded data firms as investors weighed the potential for AI-driven disruption.

This product’s traction has helped reinforce confidence in the Anthropic $20B round, positioning the company as a key player in the rapidly evolving AI landscape.

AI Fundraising Heats Up Across the Sector

Anthropic’s fundraising push comes as rivals accelerate their own capital plans. OpenAI is reportedly assembling a $100 billion fundraising round, while multiple AI companies are believed to be preparing for public listings. Anthropic and OpenAI are both thought to be exploring IPOs ahead of what could be a blockbuster summer for the markets, with xAI—recently acquired by SpaceX—also tapping public equity as part of the rocket maker’s IPO.