Anthropic confidentially filed for an IPO, signaling its move toward public markets after a massive funding round. The startup secured $65bn in new capital, pushing its valuation to roughly $900bn, making it one of the most valuable AI firms globally. The filing places the company among a wave of AI startups seeking liquidity.

Investors have watched Anthropic’s rapid growth, fueled by high‑profile backers and a focus on safety‑first language models. The confidential S‑1 suggests the company will list on a major U.S. exchange, likely targeting tech‑heavy investors hungry for exposure to generative AI. A public listing could provide a benchmark for how the market prices AI firms with hefty balance sheets.

The IPO could reshape capital flows into the AI sector, where private valuations have surged but exits remain limited. With a valuation near $900bn, Anthropic dwarfs many listed tech peers, raising questions about price‑to‑earnings multiples and long‑term profitability. Regulators may also scrutinize the firm’s data practices as it transitions to public reporting.

The filing arrives as rivals like OpenAI and Google DeepMind vie for dominance, intensifying competition for talent and compute. Market participants will watch the pricing and share allocation closely, as the outcome may set a precedent for future AI IPOs and influence venture capital appetite for later‑stage rounds.