According to Polymarket prediction markets, Anthropic is now considered the frontrunner to complete its IPO before OpenAI, with odds reaching 95 percent. Both AI companies filed confidential IPO paperwork in June 2026. Anthropic is actively preparing for a listing in the fourth quarter of 2026, while OpenAI’s timeline remains uncertain and could be delayed to 2027. This shift in market confidence positions Anthropic as the leading candidate to become the first AI company to go public.
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