Anthropic PBC has confidentially filed its IPO prospectus with the SEC, a move that puts the artificial intelligence startup ahead of rival OpenAI in the race to go public. The company, best known for its Claude chatbot, intends to offer shares to the public sometime this year, according to multiple reports. Analysts predict this could rank among the biggest IPOs in U.S. history.

The confidential filing comes after Anthropic recently raised $65 billion in Series H funding at a $965 billion post-money valuation, as reported by the company itself. This financial heft positions it as a formidable contender in the AI arms race. By going public before OpenAI, Anthropic gains a potential first-mover advantage in attracting a broader base of investors.

The timing underscores an intensifying battle among AI startups for capital to fund massive computing infrastructure. Bloomberg noted that the IPO edge could widen Anthropic's lead over OpenAI, as both firms spend heavily on computational resources. The confidential process allows Anthropic to test market appetite without immediate public scrutiny.

Investors will now watch for the pricing and timing of the offering, which could reshape the landscape for AI-focused equities. If successful, the IPO may unlock a new wave of capital for Anthropic's research and development efforts. However, market volatility and regulatory concerns around AI remain potential headwinds.

Not everyone sees the move as a sure win. Critics argue that Anthropic's sky-high valuation relies on speculative future revenues, and that the AI sector faces increasing regulatory scrutiny that could dampen investor enthusiasm.