Anthropic's Claude 3.5 Sonnet, released June 20, has claimed the top spot on the LMSYS Chatbot Arena leaderboard—surpassing OpenAI's GPT-4o in coding, math, and multimodal benchmarks—driving trader consensus toward Anthropic as the current frontrunner for the #1 AI model by June 30. This swift ascent underscores intensifying competition among labs like Google DeepMind (Gemini 1.5), Meta (Llama 3), and xAI (Grok), where user-voted Elo ratings reflect real-world capabilities. No major releases have emerged in the past week from rivals, but traders monitor for surprise announcements or updates before month-end, as leaderboard volatility remains high amid rapid AI scaling and benchmark evolution.
Experimental AI-generated summary referencing Polymarket data · Updated$1,165,384 Vol.

OpenAI
29%

xAI
16%

DeepSeek
8%

Alibaba
8%

Meta
6%

Z.ai
5%

Baidu
4%

Mistral
4%

Nvidia
3%

Meituan
3%
$1,165,384 Vol.

OpenAI
29%

xAI
16%

DeepSeek
8%

Alibaba
8%

Meta
6%

Z.ai
5%

Baidu
4%

Mistral
4%

Nvidia
3%

Meituan
3%
Results from the "Arena Score" section on the Leaderboard tab of https://lmarena.ai/ with the style control unchecked will be used to resolve this market.
If a listed model ties for #1 Arena score, it will suffice to resolve this market to "Yes."
The resolution source for this market is the Chatbot Arena LLM Leaderboard found at https://lmarena.ai/. If this resolution source becomes unavailable, the market will remain open until it is accessible again. If it becomes permanently unavailable, resolution will be based on another credible source.
Market Opened: Dec 22, 2025, 5:28 PM ET
Resolver
0x65070BE91...Results from the "Arena Score" section on the Leaderboard tab of https://lmarena.ai/ with the style control unchecked will be used to resolve this market.
If a listed model ties for #1 Arena score, it will suffice to resolve this market to "Yes."
The resolution source for this market is the Chatbot Arena LLM Leaderboard found at https://lmarena.ai/. If this resolution source becomes unavailable, the market will remain open until it is accessible again. If it becomes permanently unavailable, resolution will be based on another credible source.
Resolver
0x65070BE91...Anthropic's Claude 3.5 Sonnet, released June 20, has claimed the top spot on the LMSYS Chatbot Arena leaderboard—surpassing OpenAI's GPT-4o in coding, math, and multimodal benchmarks—driving trader consensus toward Anthropic as the current frontrunner for the #1 AI model by June 30. This swift ascent underscores intensifying competition among labs like Google DeepMind (Gemini 1.5), Meta (Llama 3), and xAI (Grok), where user-voted Elo ratings reflect real-world capabilities. No major releases have emerged in the past week from rivals, but traders monitor for surprise announcements or updates before month-end, as leaderboard volatility remains high amid rapid AI scaling and benchmark evolution.
Experimental AI-generated summary referencing Polymarket data · Updated



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