OpenAI announces another Millennium Prize solution by...?

According to the latest prediction market data for the query “OpenAI announces another Millennium Prize solution by...?”, traders have formed a strong consensus.

Currently, December 31, 2027 is dominating the market with an overwhelming 91.5% chance of winning. December 31, 2026 follows in second place at 64%, while September 30, 2026 sits in third with 40.5%. The betting volume for this specific market has already reached $69.7K, reflecting intense industry interest.

To better assess where each potential outcome stands, the market can be segmented into three distinct trading tiers based on implied probability and contract pricing:

🥇 Tier 1: The Dominant Leader

• December 31, 2027 (91.5%): Currently commanding the highest probability, December 31, 2027 is heavily favored by the order book. Traders looking to back this outcome face a “Buy Yes” contract price of 92¢, signaling a high degree of market conviction. This contract alone has generated $7.5K in volume.

🥈 Tier 2: The Primary Challengers

• December 31, 2026 (64%): Positioned as the most viable alternative, December 31, 2026 maintains a 64% chance of resolving true. Its “Buy Yes” shares currently trade at 64¢.
• September 30, 2026 (40.5%): Sitting in third place with a 40.5% probability, the market shows measured skepticism toward September 30, 2026, treating it as an outside wildcard unless momentum shifts.

This market will resolve to "Yes" if OpenAI, or an official representative of OpenAI, announces that OpenAI has solved any of the qualifying Millennium Prize Problems between market creation and the specified date, 11:59 PM ET. Otherwise, this market will resolve to "No".

The qualifying problems are the Riemann Hypothesis, P versus NP, the Yang-Mills existence and mass gap problem, the Hodge Conjecture, and the Birch and Swinnerton-Dyer Conjecture (https://www.claymath.org/millennium-problems/). Announcements concerning the Navier-Stokes existence and smoothness problem will not qualify.

A qualifying announcement must express that the problem has been solved; announcements of partial results or progress toward a solution will not qualify. The announcement must present the solution as the work of OpenAI, its researchers, or its models, alone or jointly with outside researchers. An announcement that only credits or congratulates outside researchers, including researchers who used OpenAI's models, compute, or research credits, will not qualify. No further confirmation from Clay Math Institute or any other organization is required.

The primary resolution source for this market will be official information from OpenAI and/or its official representatives; however, a consensus of credible reporting may also be used.

While human consensus and speculative volume shape the broader prediction market, our quantitative algorithms offer a data-driven counter-perspective. By analyzing fundamental signals, underlying trends and historical distributions, our AI Valuation model calculates an independent “Fair Value” probability for each outcome.

Comparing this Fair Value against the current Trade Value uncovers major disparities — known as the Expected Value (EV) Gap. Contracts with a positive EV Gap represent statistically underpriced outcomes, whereas a negative EV Gap flags a potential market overreaction.

Top AI Alpha & Mispriced Arbitrage Opportunities

Based on the latest data model run, several key contracts stand out with significant deviations:

• The Most Overvalued Outcome December 31, 2026 currently trades at 64%, but our AI places its Fair Value at just 28.3%. This creates a large negative EV Gap of -35.7%, suggesting the crowd may be overhyping this outcome and driving the premium too high.