Will OpenAI or Anthropic IPO first?

The core evidence points toward Anthropic being slightly ahead in the IPO race. Recent reporting says Anthropic is closer to a public filing and could be ready for a late-2026 debut, while OpenAI’s path appears to have slipped toward 2027. That timing gap matters because IPO sequencing is often determined less by ultimate ambition than by who can get through governance, disclosure, and market-readiness steps first. If Anthropic is genuinely already near a prospectus while OpenAI is still several quarters away from a firm launch window, Anthropic has the cleaner path to being first.

At the same time, the situation is still highly unstable and the market’s 94% confidence feels overstated. Both companies remain private and have not publicly locked in definitive IPO schedules, which means either one could accelerate, delay, or choose a different capital-raising route entirely. OpenAI in particular has enormous investor attention and could move quickly once it commits, while Anthropic’s apparent lead could narrow if it encounters regulatory, governance, or valuation friction. In long-dated event markets, modest differences in reported timing are often enough to swing the leader, but not enough to justify near-certainty.

The market is probably anchoring too hard on the latest news flow and underweighting execution risk. The broad direction of the evidence supports Anthropic first, but a 94% price implies almost no chance that OpenAI overtakes, which is too strong given the amount of time left and the possibility of last-minute timeline changes. A more balanced view is that Anthropic has a meaningful advantage, but not a lock.