Will OpenAI have the best AI model at the end of December 2026?
Gotcha risk
Low1 of 4 factors flagged
Watch for: The rules provide a precise, objective definition for determining the leading model using the Chatbot Arena text leaderboard with style control turned off at a specific date and time (December 31, 2026, at 12:00 PM ET).
Read the full assessment
The rules provide a precise, objective definition for determining the leading model using the Chatbot Arena text leaderboard with style control turned off at a specific date and time (December 31, 2026, at 12:00 PM ET). Tiebreaker steps are clearly laid out, progressing from rank to unrounded granular arena scores, and finally to alphabetical order by company name. Participants should note that if the primary leaderboard website is offline at check time, resolution will pause until it returns, or rely on an unspecified alternative source if the site becomes permanently unavailable.
- Resolver
- Low
- Timing
- Low
- Wording
- Low
- Exceptions
- Medium
AI-generated analysis · google/gemini-3.7-flash ·
Current price
3%
chance▼ −0.25 pts · 24h
Why it moved
No big moves in the last 7 days.
Resolution rules
This market will resolve according to the company which owns the model which has the highest arena rank based off the Chatbot Arena LLM Leaderboard (https://lmarena.ai/) when the table under the "Leaderboard" tab is checked on December 31, 2026, 12:00 PM ET. Results from the "Rank" section on the Leaderboard tab of https://lmarena.ai/leaderboard/text with the style control off will be used to resolve this market. Models will be ordered primarily by their leaderboard rank at the market’s check time. If two or more models are tied on rank, they will be ordered by their Arena score, including any underlying, unrounded, granular values reflected in the data below the leaderboard. If a tie remains, alphabetical order of company names as listed in this market group will be used as a final tiebreaker (e.g., if the two models are tied by exact arena score, “Google” would be ranked ahead of “xAI”). This market will resolve based on the company that occupies first place under this ranking system. The resolution source for this market is the Chatbot Arena LLM Leaderboard found at https://lmarena.ai/. If this resolution source is unavailable at check time, this market will remain open until the leaderboard comes back online and resolve based on the first check after it becomes available. If it becomes permanently unavailable, this market will resolve based on another resolution source.
Market explained
This market measures whether an OpenAI model holds the top rank on the Chatbot Arena LLM Leaderboard as of December 31, 2026.
How it resolves
The market resolves to Yes if OpenAI owns the model occupying the first place rank on the Chatbot Arena LLM Leaderboard at the check time. The market resolves to No if another company owns the first-place model. Models are evaluated based on their Rank on the text leaderboard with style control off. Ties on rank are broken by the underlying Arena score, followed by alphabetical order of company names. The official resolution source is the Chatbot Arena LLM Leaderboard. If the source is offline at check time, the market waits until it returns; if it becomes permanently unavailable, another resolution source will be used.
Resolution source
Chatbot Arena LLM Leaderboard
AI-generated analysis · google/gemini-3.7-flash ·