Trader consensus on Polymarket assigns a 97.8% implied probability to Anthropic holding the #3 spot on the LMSYS Chatbot Arena leaderboard (Style Control On) at the end of April 2026, driven by its Claude Opus 4.7 model securing third place behind Anthropic's own Claude Mythos Preview and OpenAI's GPT-5.5, per recent llm-stats.com rankings aggregating real-world battles. April's flurry of releases—including OpenAI's GPT-5.5, Google's Gemini 3.1 Pro Preview, and DeepSeek V4—failed to dislodge Claude Opus 4.7, as style control neutralizes superficial preferences, highlighting its substantive reasoning and coding prowess validated by Elo scores around 62+ on reasoning benchmarks. This positioning reflects Anthropic's competitive edge in large language model capabilities amid tight races. Realistic challenges include a last-minute leaderboard update from surging battles or an unannounced tweak elevating OpenAI or Google models before April 30 cutoff.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedAnthropic 100.0%
Google <1%
Alibaba <1%
ByteDance <1%
$140,963 Vol.
$140,963 Vol.

Anthropic
100%

<1%

Alibaba
<1%

ByteDance
<1%

Moonshot
<1%

Z.ai
<1%

DeepSeek
<1%

Microsoft
<1%

OpenAI
<1%

xAI
<1%

Baidu
<1%

Amazon
<1%

Mistral
<1%

Meituan
<1%

Meta
<1%
Anthropic 100.0%
Google <1%
Alibaba <1%
ByteDance <1%
$140,963 Vol.
$140,963 Vol.

Anthropic
100%

<1%

Alibaba
<1%

ByteDance
<1%

Moonshot
<1%

Z.ai
<1%

DeepSeek
<1%

Microsoft
<1%

OpenAI
<1%

xAI
<1%

Baidu
<1%

Amazon
<1%

Mistral
<1%

Meituan
<1%

Meta
<1%
Results from the "Rank" column under the "Text Arena | Overall" Leaderboard tab at https://lmarena.ai/leaderboard/text with style control on will be used to resolve this market.
Models will be ordered primarily by their leaderboard rank at the market’s check time. If two or more models are tied on rank, they will be ordered by their Arena score, including any underlying, unrounded, granular values reflected in the data below the leaderboard. If a tie remains, alphabetical order of company names as listed in this market group will be used as a final tiebreaker (e.g., if the two models are tied by exact arena score, “Google” would be ranked ahead of “xAI”). This market will resolve based on the company that occupies third place under this ranking system.
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 will 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: Mar 20, 2026, 4:44 PM ET
Resolver
0x69c47De9D...Results from the "Rank" column under the "Text Arena | Overall" Leaderboard tab at https://lmarena.ai/leaderboard/text with style control on will be used to resolve this market.
Models will be ordered primarily by their leaderboard rank at the market’s check time. If two or more models are tied on rank, they will be ordered by their Arena score, including any underlying, unrounded, granular values reflected in the data below the leaderboard. If a tie remains, alphabetical order of company names as listed in this market group will be used as a final tiebreaker (e.g., if the two models are tied by exact arena score, “Google” would be ranked ahead of “xAI”). This market will resolve based on the company that occupies third place under this ranking system.
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 will resolve based on the first check after it becomes available. If it becomes permanently unavailable, this market will resolve based on another resolution source.
Resolver
0x69c47De9D...Trader consensus on Polymarket assigns a 97.8% implied probability to Anthropic holding the #3 spot on the LMSYS Chatbot Arena leaderboard (Style Control On) at the end of April 2026, driven by its Claude Opus 4.7 model securing third place behind Anthropic's own Claude Mythos Preview and OpenAI's GPT-5.5, per recent llm-stats.com rankings aggregating real-world battles. April's flurry of releases—including OpenAI's GPT-5.5, Google's Gemini 3.1 Pro Preview, and DeepSeek V4—failed to dislodge Claude Opus 4.7, as style control neutralizes superficial preferences, highlighting its substantive reasoning and coding prowess validated by Elo scores around 62+ on reasoning benchmarks. This positioning reflects Anthropic's competitive edge in large language model capabilities amid tight races. Realistic challenges include a last-minute leaderboard update from surging battles or an unannounced tweak elevating OpenAI or Google models before April 30 cutoff.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated



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