Next OpenAI Model: Arena Debut?

Resolution Criteria

This market will resolve to "Yes" if the next model released by OpenAI has at least the specified score on the Arena.AI Leaderboard (arena.ai/leaderboard/text) when the table under the "Leaderboard" tab is checked on the date after the day of the release, 12:00 PM ET. Otherwise, this market will resolve to "No". Results from the "Score" column under the "Text Arena | Overall" Leaderboard tab at https://lmarena.ai/leaderboard/text with style control off will be used to resolve this market. If no qualifying score for the specified model is available on the Arena.AI Leaderboard at 12:00 PM ET following the date of the release, this market will resolve based on the first subsequent instance at which such a score becomes available on the leaderboard. If no qualifying score becomes available by the end of the seventh day following the day of the model’s release, or if no qualifying model release occurs by December 31, 2026, 11:59 PM ET, this market will resolve to "No". If multiple models are released on the same calendar date or if multiple variants of the specified model appear on the Arena.AI Leaderboard at the relevant check time (e.g., base, “Thinking,” or “Instant”), the highest-scoring variant will be used for resolution. A qualifying model must be launched and publicly accessible, including via open beta or open rolling waitlist signups. A closed beta or any form of private access will not suffice. The release must be either clearly defined and publicly announced as being accessible to the general public or otherwise made publicly accessible and explicitly labeled within the company’s official website. Labeling errors, placeholder text, or version names displayed on the website that do not correspond to a model that is actually accessible to the general public will not qualify. The resolution source for this market is the Chatbot Arena LLM Leaderboard found at arena.ai/leaderboard/text. If this resolution source is unavailable at 12:00 PM ET following the date of the release, this market will resolve based on the first subsequent instance at which such a score becomes available on the leaderboard. If it remains unavailable through the end of the seventh day after a qualifying release, it will resolve to "No".

This market asks whether the next publicly released OpenAI model will reach a specified score on the Chatbot Arena LLM Leaderboard (arena.ai/leaderboard/text) within seven days of its release. Trading is heavily concentrated on the higher score thresholds, with the 1450+ and 1470+ outcomes drawing the greatest volume. Resolution depends on the model's verified Arena score following a qualifying public release, with a final deadline of 31 December 2026.

Market structure

The market contains five outcomes tied to score thresholds on the Chatbot Arena Text leaderboard, measured with style control off. Volume is heavily concentrated on the two highest thresholds — 1450+ and 1470+ — indicating the market is broadly treating a high-scoring debut as the base case. Resolution requires a publicly accessible model release and a confirmed leaderboard score within seven days. If no qualifying score appears within that window, the market resolves No.

Background

Chatbot Arena, operated by LMSYS and hosted at lmarena.ai, is widely regarded as one of the most credible independent benchmarks for large language model quality, using blind pairwise human preference votes to generate Elo-style scores. OpenAI's recent frontier releases — including the GPT-4o family and the o-series reasoning models — have consistently appeared near the top of the Arena leaderboard. The leaderboard score for a newly released model can shift in the days following launch as more votes accumulate, which is why the resolution mechanic allows up to seven days for a qualifying score to appear. The question of how high OpenAI's next model scores is significant given intensifying competition from Anthropic, Google DeepMind, and a growing set of open-weight models, all of which have pushed Arena scores upward across the industry over the past year.

Key factors

Several structural factors bear on resolution. First, the model must be released publicly — closed betas or private access do not qualify, meaning any staged rollout strategy OpenAI employs could delay the resolution clock. Second, the Arena leaderboard requires sufficient human votes to generate a stable score; models released with limited initial user uptake may take longer to accumulate the volume needed for a score to appear. Third, if multiple variants are released simultaneously (for example, a base model and a 'Thinking' variant), the highest-scoring variant is used, which could push resolution towards Yes even if the primary model underperforms. Fourth, the competitive landscape matters: if rival models have raised the overall score distribution on the leaderboard before OpenAI's release, the threshold becomes relatively harder to reach in absolute terms. Fifth, OpenAI's release cadence and any public announcements about upcoming models will determine whether a qualifying release occurs before the 31 December 2026 deadline.

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