Anthropic's Claude 3.5 Sonnet release on June 20 has surged to the top of the LMSYS Chatbot Arena leaderboard with an Elo score over 1270, driving its 54.5% implied probability as trader consensus favors its superior coding, reasoning, and vision capabilities over rivals like OpenAI's GPT-4o and Google's Gemini 1.5 Pro. Google holds 26.5% on anticipation of Gemini 2.0 previews or tweaks before month-end, while OpenAI's 10.5% reflects GPT-4o's recent slippage amid no imminent upgrades. xAI's 5.3% stems from Grok-1.5 hype and Elon's rapid iteration promises, but lower scores for DeepSeek and others highlight benchmark gaps. With end-June resolution looming, surprise launches could shift odds rapidly.
Experimental AI-generated summary referencing Polymarket data · UpdatedAnthropic 54.5%
Google 27%
OpenAI 11%
xAI 5.3%
$2,456,789 Vol.
$2,456,789 Vol.

Anthropic
55%

27%

OpenAI
11%

xAI
5%

DeepSeek
2%

Moonshot
1%

Alibaba
1%

Z.ai
<1%

Mistral
<1%

Meituan
<1%
Anthropic 54.5%
Google 27%
OpenAI 11%
xAI 5.3%
$2,456,789 Vol.
$2,456,789 Vol.

Anthropic
55%

27%

OpenAI
11%

xAI
5%

DeepSeek
2%

Moonshot
1%

Alibaba
1%

Z.ai
<1%

Mistral
<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's Claude 3.5 Sonnet release on June 20 has surged to the top of the LMSYS Chatbot Arena leaderboard with an Elo score over 1270, driving its 54.5% implied probability as trader consensus favors its superior coding, reasoning, and vision capabilities over rivals like OpenAI's GPT-4o and Google's Gemini 1.5 Pro. Google holds 26.5% on anticipation of Gemini 2.0 previews or tweaks before month-end, while OpenAI's 10.5% reflects GPT-4o's recent slippage amid no imminent upgrades. xAI's 5.3% stems from Grok-1.5 hype and Elon's rapid iteration promises, but lower scores for DeepSeek and others highlight benchmark gaps. With end-June resolution looming, surprise launches could shift odds rapidly.
Experimental AI-generated summary referencing Polymarket data · Updated


Beware of external links.
Beware of external links.
Frequently Asked Questions