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Anthropic's Mega IPO: Warning of Risk While Racing to List

Anthropic faces criticism for ramping up AI risk warnings while pursuing a potentially record-breaking IPO, now reportedly delayed to November with a new model planned to counter OpenAI.

2026-09-16 ~ 2026-09-19 · 2 episodes · 14 posts

Episode 1 · Anthropic Warns of AI Risks While Racing Toward Record IPO (2026-09-16, 2 posts)

Anthropic is escalating public warnings about AI risk while preparing one of the largest IPOs in history, a contradiction that has drawn backlash from Silicon Valley figures including Michael Burry.

Episode 2 · Anthropic Reportedly Delays IPO to November, Weighs Early Model Launch to Counter OpenAI (2026-09-19, 12 posts)

According to Reuters, The Wall Street Journal, The New York Times, and The Information, Anthropic is moving ahead with what could be one of the largest IPOs in history, though it has pushed the listing from the October date investors expected to November. The company is also considering releasing a new AI model before the IPO to counter the competitive momentum of OpenAI, whose Astra launched on September 3. These moves have put the safety-focused frontier AI lab at the center of both capital markets and industry competition.

Confirmed

  • Per The Wall Street Journal, Anthropic delayed its IPO to November—later than most investors expected—so it can first release third-quarter financials and showcase a strong competitive position; investors expect its year-end annualized revenue to exceed $110 billion.
  • Per The New York Times, Anthropic expects annualized revenue above $100 billion this year, up from $65 billion in July; it was only about $1 billion at the end of 2024, roughly a 65x increase over 19 months, and the IPO could rank among the largest listings ever.
  • Per Reuters, Anthropic is weighing releasing a new AI model before the IPO, seen as a move to demonstrate technical strength and commercial prospects ahead of going public. Reuters exclusively reported the move is meant to respond to OpenAI's Astra, launched September 3, which reportedly took about 13% of Anthropic's enterprise market share within two weeks (as relayed in a 机器之心 post).
  • Per WSJ (cited by Gary Marcus), OpenAI's IPO has been pushed to 2027.

Not Yet Confirmed

  • The new model's specific capabilities and release timeline await official confirmation, and sources' accounts may shift as the IPO progresses.
  • One leak (koltregaskes post) claims the IPO delay was deliberately timed after the US midterm elections, with plans to release a new model to counter GPT-6 Astra, on the grounds that OpenAI is eating into its enterprise customers—but this remains unverified.

Why It Matters

  • With roughly 65x revenue growth over 19 months and a march toward a record IPO, Anthropic is the latest frontier lab heading to public markets after OpenAI's capital moves; EU and Nordic investors are also watching closely for ripple effects on European AI policy and funding (nordicinst post).
  • On the competitive front, firstadopter and m10 both argue OpenAI's rapid-fire releases (GPT-5.6 on July 9, Astra in September) forced Anthropic to adjust its pace; 机器之心 noted the stark contrast that CEO Dario Amodei published a long essay on September 12 urging slower AI development, only for the company to weigh an early new-model launch seven days later. Gary Marcus quipped "slowdown? what slowdown?" to mock Anthropic calling for AI restraint while gearing up a new model, joking that making an S-1 look good in this market is no easy task. The pstAsiatech post emphasized that Anthropic is pushing forward with its IPO while still deep in AI safety debates.