OpenAI IPO filing raises 83% chance of public debut before Anthropic

OpenAI Inc. is reportedly set to confidentially file for an IPO as soon as Friday, changing market predictions. Traders on Kalshi now assign an 83% chance for OpenAI (OPENAI) to debut before Anthropic, which has seen its odds drop from 69% to 20%. This potential IPO is significant, as it may set a market valuation and allow OpenAI to gain early investor access. Concerns over OpenAI's spending and missed targets have affected its investor outlook, contrasting with Anthropic's recent strong growth and a new funding round potentially valuing it at $900 billion.