Anthropic commands a 61.8% implied probability as the company with the best AI model by end of June, propelled by Claude 3.5 Sonnet's June 20 release, which rocketed to the top of the LMSYS Chatbot Arena leaderboard through superior coding, math, and multimodal benchmarks in blind user tests. This edges out Google's Gemini 1.5 Pro (24%) and OpenAI's GPT-4o (9.5%), highlighting Anthropic's edge in practical large language model capabilities amid intensifying AI competition. Traders price in limited room for upsets from xAI's Grok or DeepSeek, with resolution looming; a surprise Gemini flash update or OpenAI tweak could shift sentiment, but Claude's demonstrated lead and benchmark dominance underpin current positioning.
Experimental AI-generated summary referencing Polymarket data · UpdatedAnthropic 60.9%
Google 24%
OpenAI 10%
xAI 2.4%
$2,584,705 Vol.
$2,584,705 Vol.

Anthropic
61%

24%

OpenAI
10%

xAI
2%

DeepSeek
2%

Alibaba
1%

Z.ai
<1%

Mistral
<1%

Moonshot
<1%

Meituan
<1%
Anthropic 60.9%
Google 24%
OpenAI 10%
xAI 2.4%
$2,584,705 Vol.
$2,584,705 Vol.

Anthropic
61%

24%

OpenAI
10%

xAI
2%

DeepSeek
2%

Alibaba
1%

Z.ai
<1%

Mistral
<1%

Moonshot
<1%

Meituan
<1%
Results from the "Arena Score" section on the Leaderboard tab of https://lmarena.ai/leaderboard/text with the style control off will be used to resolve this market.
If two models are tied for the top arena score at this market's check time, resolution will be based on whichever company's name, as it is described in this market group, comes first in alphabetical order (e.g., if both were tied, "Google" would resolve to "Yes", and "xAI" would resolve to "No")
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 Opened: Oct 10, 2025, 5:27 PM ET
Resolver
0x2F5e3684c...Resolver
0x2F5e3684c...Anthropic commands a 61.8% implied probability as the company with the best AI model by end of June, propelled by Claude 3.5 Sonnet's June 20 release, which rocketed to the top of the LMSYS Chatbot Arena leaderboard through superior coding, math, and multimodal benchmarks in blind user tests. This edges out Google's Gemini 1.5 Pro (24%) and OpenAI's GPT-4o (9.5%), highlighting Anthropic's edge in practical large language model capabilities amid intensifying AI competition. Traders price in limited room for upsets from xAI's Grok or DeepSeek, with resolution looming; a surprise Gemini flash update or OpenAI tweak could shift sentiment, but Claude's demonstrated lead and benchmark dominance underpin current positioning.
Experimental AI-generated summary referencing Polymarket data · Updated


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