OpenAI's longstanding strategy of anonymously debuting large language models on the LMSYS Chatbot Arena leaderboard—exemplified by GPT-4o's stealth ascent before its official reveal—drives trader consensus on whether the next frontier model will follow suit. No new OpenAI entry has appeared in the past month, with Anthropic's Claude Opus 4.7 dominating since its April 16 release, propelled by superior reasoning benchmarks. Rumors swirl around OpenAI's "Spud" (potentially GPT-5.5) completion and quiet ChatGPT tests like "crest-pro-alpha," amid infrastructure scaling. Competitive pressures from Anthropic and limited cyber model rollouts heighten anticipation for an imminent release, with LMSYS votes as a key early indicator of AI capabilities. Watch for subtle leaderboard shifts or developer previews that could tip market-implied odds.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated1480+
77%
1500+
29%
1520+
11%
$2,717 Vol.
1480+
77%
1500+
29%
1520+
11%
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 June 30, 2026, 11:59 PM ET, this market will resolve to "No".
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".
Market Opened: Apr 20, 2026, 5:33 PM ET
Resolver
0x65070BE91...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 June 30, 2026, 11:59 PM ET, this market will resolve to "No".
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".
Resolver
0x65070BE91...OpenAI's longstanding strategy of anonymously debuting large language models on the LMSYS Chatbot Arena leaderboard—exemplified by GPT-4o's stealth ascent before its official reveal—drives trader consensus on whether the next frontier model will follow suit. No new OpenAI entry has appeared in the past month, with Anthropic's Claude Opus 4.7 dominating since its April 16 release, propelled by superior reasoning benchmarks. Rumors swirl around OpenAI's "Spud" (potentially GPT-5.5) completion and quiet ChatGPT tests like "crest-pro-alpha," amid infrastructure scaling. Competitive pressures from Anthropic and limited cyber model rollouts heighten anticipation for an imminent release, with LMSYS votes as a key early indicator of AI capabilities. Watch for subtle leaderboard shifts or developer previews that could tip market-implied odds.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated



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