unrekt resolver / dossier

Will Anthropic have the best AI model at the end of December 2026?

market: Yes 71¢ / No 29¢ · liquidity $33,499 · ends 2027-01-01 · market page ↗
Turns on what 'another resolution source' means if lmarena.ai leaderboard becomes permanently unavailable.
no published read yet — crux identified, evidence gathering

Resolution rules (verbatim)

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.

Fallback resolution source for permanent unavailability is vague and unspecified; could resolve differently depending on which alternative is chosen.

Disputed precedents with similar wording

Past markets that went through UMA dispute and share wording patterns with this market's crux (keyword match v0 — precedent engine is early).

Will Goldman Sachs or any of its underwriting affiliates serve as the lead underwriter in SpaceX’s initial public offering? resolved YES DISPUTED · 2027-12-31
Will Wells Fargo or any of its underwriting affiliates serve as the lead underwriter in SpaceX’s initial public offering? resolved NO DISPUTED · 2027-12-31
Over $15M committed to the Trove public sale? resolved NO DISPUTED · 2027-01-01
Over $3M committed to the Infinex public sale? resolved YES DISPUTED · 2027-01-01
Backpack FDV above $200M one day after launch? resolved YES DISPUTED · 2027-01-01

Machine-readable

This dossier updates continuously. JSON: /m/will-anthropic-have-the-best-ai-model-at-the-end-of-december-2026.json. Oracle precedent matches are rolling out.

unrekt resolver — independent resolution intelligence for prediction markets. We analyse how markets will resolve (rules, wording, precedent), not what will happen. We hold no positions. Every published read is timestamped and graded by the market's actual resolution. all wording-risk markets