Trader consensus on Polymarket gives Anthropic a 95% implied probability of fielding the second-best AI model by March 31, driven by Claude 3.5 Sonnet's persistent #2 ranking on the LMSYS Chatbot Arena leaderboard, where it trails only OpenAI's o1-preview in ELO scores amid rigorous blind user evaluations. This positioning stems from Anthropic's confirmed coding and reasoning prowess in recent benchmarks, outpacing Google's Gemini 1.5 and xAI's Grok-2, with no major rival releases since October 2024 shifting the hierarchy. Challenges could arise from a pre-deadline Gemini 2.0 launch by Google or xAI's Grok-3 debut, potentially leapfrogging via multimodal gains, though timelines remain speculative per official roadmaps.
Experimental AI-generated summary referencing Polymarket data · UpdatedAnthropic 95%
Google 3.4%
xAI <1%
DeepSeek <1%
$417,488 Vol.
$417,488 Vol.

Anthropic
95%

3%

xAI
1%

DeepSeek
1%

OpenAI
<1%

Z.ai
<1%

Alibaba
<1%

Baidu
<1%

Moonshot
<1%

Mistral
<1%

Meituan
<1%
Anthropic 95%
Google 3.4%
xAI <1%
DeepSeek <1%
$417,488 Vol.
$417,488 Vol.

Anthropic
95%

3%

xAI
1%

DeepSeek
1%

OpenAI
<1%

Z.ai
<1%

Alibaba
<1%

Baidu
<1%

Moonshot
<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 second best 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: Dec 2, 2025, 6:02 PM ET
Resolver
0x2F5e3684c...Resolver
0x2F5e3684c...Trader consensus on Polymarket gives Anthropic a 95% implied probability of fielding the second-best AI model by March 31, driven by Claude 3.5 Sonnet's persistent #2 ranking on the LMSYS Chatbot Arena leaderboard, where it trails only OpenAI's o1-preview in ELO scores amid rigorous blind user evaluations. This positioning stems from Anthropic's confirmed coding and reasoning prowess in recent benchmarks, outpacing Google's Gemini 1.5 and xAI's Grok-2, with no major rival releases since October 2024 shifting the hierarchy. Challenges could arise from a pre-deadline Gemini 2.0 launch by Google or xAI's Grok-3 debut, potentially leapfrogging via multimodal gains, though timelines remain speculative per official roadmaps.
Experimental AI-generated summary referencing Polymarket data · Updated


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