Trader consensus overwhelmingly backs Anthropic's Claude 3 Opus as the second-best AI model by end of March 2024, with 91.5% implied probability on Polymarket, driven by its rapid ascent to #2 on the LMSYS Chatbot Arena leaderboard following the model's official release on March 4. Independent benchmarks confirmed Opus edging out competitors like Google's Gemini 1.5 Pro and Meta's Llama 3 preview in blind user-voted Elo ratings, trailing only OpenAI's GPT-4 Turbo. This positioning reflects Anthropic's edge in reasoning and coding tasks amid intensifying frontier model competition. Realistic challenges include late-March leaderboard volatility from Gemini updates or xAI's Grok-1.5 refinements, though no major rival announcements materialized before cutoff.
Experimental AI-generated summary referencing Polymarket data · UpdatedAnthropic 92%
Google 5.2%
xAI 1.0%
OpenAI <1%
$1,107,894 Vol.
$1,107,894 Vol.

Anthropic
92%

5%

xAI
1%

OpenAI
1%

DeepSeek
1%

Alibaba
<1%

Moonshot
<1%

Z.ai
<1%

Baidu
<1%

Mistral
<1%

Meituan
<1%
Anthropic 92%
Google 5.2%
xAI 1.0%
OpenAI <1%
$1,107,894 Vol.
$1,107,894 Vol.

Anthropic
92%

5%

xAI
1%

OpenAI
1%

DeepSeek
1%

Alibaba
<1%

Moonshot
<1%

Z.ai
<1%

Baidu
<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 overwhelmingly backs Anthropic's Claude 3 Opus as the second-best AI model by end of March 2024, with 91.5% implied probability on Polymarket, driven by its rapid ascent to #2 on the LMSYS Chatbot Arena leaderboard following the model's official release on March 4. Independent benchmarks confirmed Opus edging out competitors like Google's Gemini 1.5 Pro and Meta's Llama 3 preview in blind user-voted Elo ratings, trailing only OpenAI's GPT-4 Turbo. This positioning reflects Anthropic's edge in reasoning and coding tasks amid intensifying frontier model competition. Realistic challenges include late-March leaderboard volatility from Gemini updates or xAI's Grok-1.5 refinements, though no major rival announcements materialized before cutoff.
Experimental AI-generated summary referencing Polymarket data · Updated


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