Frontier labs head toward public listings

Organizations

Updates

1. Jun 12

   OpenAI confidentially filed a draft S-1 one week after Anthropic, making the listing track a two-lab race, though it said it has not decided on timing and may stay private longer.

   OpenAI confidentially files a draft S-1

2. Jun 5

   Anthropic confidentially submitted a draft S-1 to the SEC roughly two weeks after its $65B Series H, earlier than the expected Q3 filing, giving it the option to go public.

   Anthropic confidentially files a draft S-1

3. May 29New

   Anthropic raised a $65B Series H at $965B, including $15B from hyperscalers and strategic stakes from Samsung, SK Hynix, and Micron, on a $47B ARR run-rate with 130% projected growth, and Bloomberg reports an October IPO target.

   Anthropic raises $65B at $965B

Predictions

1. Sep 2026

   Anthropic files an S-1 with Q2 ARR data, setting the first public benchmarks for AI-lab revenue quality, customer concentration, and compute margins and repricing private AI companies. May 29

   Missed. Anthropic filed only a confidential draft S-1 (June 1); by September 30 its prospectus had been seen by Reuters but not filed publicly on EDGAR. Sources

2. Dec 2026

   When Anthropic converts the draft into a public S-1 with audited financials, it sets the first public benchmarks for frontier-AI revenue quality, customer concentration, and compute margins, repricing peer private valuations and pressuring OpenAI's listing timeline. Jun 5

3. Dec 2026

   Whichever lab first converts to a public S-1 sets the sector's first audited frontier-AI unit economics, and both keep accumulating public-company scaffolding (services partnerships, multi-cloud distribution, governance disclosures) ahead of either listing. Jun 12