Will OpenAI be the second-best Math AI lab at the end of November 2026?

The market asks whether OpenAI will be the second-best Math AI lab in Text Arena by the end of November 2026. Yes is priced at just 0.045, while our model estimates 0.250. This is a niche market on the Math AI Lab ranking where liquidity is extremely thin, and the price may reflect only a handful of trades. OpenAI has traditionally been strong in math benchmarks, but competition has intensified sharply in 2026: Google DeepMind, Anthropic and Chinese labs post comparable results, and Text Arena scores not only accuracy but also explanation quality.

Our 25% estimate accounts for several factors: first, OpenAI has a strong line of reasoning-focused models and a history of leading MATH and AIME; second, the Text Arena format favors models with strong step-by-step explanations, a known OpenAI strength; third, the market is likely underpriced due to recent competitor releases and hype around them, while OpenAI could regain ground by year-end. At a 4.5% price, even a moderate 25% probability offers a large edge.

For Yes to win, OpenAI must finish exactly second in the Math AI Lab ranking by end-November 2026. That requires at least one lab to surpass OpenAI while OpenAI stays ahead of everyone else. The market may be mispriced due to thin liquidity and stale data. Risks: a new competitor model release, changes in Text Arena methodology, or one lab dominating so thoroughly that OpenAI lands third or lower. If OpenAI releases a model that takes first place, the bet on second place loses.