Anthropic's commanding 78.5% implied probability stems from Claude 3 Opus's unchallenged lead on the LMSYS Chatbot Arena leaderboard through late April, where it consistently outscored rivals in blind human evaluations of reasoning, coding, and multimodal tasks with an Elo rating above 1280. Traders view this as trader consensus for the "best" frontier model, bolstered by the model's March release and no superior challengers emerging by April 30—Google's Gemini 1.5 Pro trails at second (7.5%) despite its long-context window, while OpenAI's GPT-4 Turbo lags further amid delays in GPT-4o. Lower odds for xAI's Grok-1.5 and DeepSeek reflect niche strengths but weaker overall benchmarks, with resolution hinging on final leaderboard snapshots amid typical pre-deadline volatility.
Experimental AI-generated summary referencing Polymarket data · UpdatedAnthropic 79%
Google 8%
OpenAI 2.6%
xAI 2.5%
$279,845 Vol.
$279,845 Vol.

Anthropic
79%

8%

OpenAI
3%

xAI
2%

DeepSeek
2%

Baidu
1%

Meituan
1%

Alibaba
1%

ByteDance
1%

Mistral
1%

Moonshot
1%

Z.ai
1%

Amazon
<1%
Anthropic 79%
Google 8%
OpenAI 2.6%
xAI 2.5%
$279,845 Vol.
$279,845 Vol.

Anthropic
79%

8%

OpenAI
3%

xAI
2%

DeepSeek
2%

Baidu
1%

Meituan
1%

Alibaba
1%

ByteDance
1%

Mistral
1%

Moonshot
1%

Z.ai
1%

Amazon
<1%
Results from the "Score" column under the "Text Arena | Overall" Leaderboard tab at https://lmarena.ai/leaderboard/text with style control off will be used to resolve this market.
Models will be ranked primarily by their arena score at this market’s check time, with alphabetical order of company names as listed in this market group used as a tiebreaker (e.g., if the two models are tied by arena score, “Google” would be ranked ahead of “xAI”). This market will resolve based on the company that occupies first place under this ranking.
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, 4:17 PM ET
Resolver
0x69c47De9D...Resolver
0x69c47De9D...Anthropic's commanding 78.5% implied probability stems from Claude 3 Opus's unchallenged lead on the LMSYS Chatbot Arena leaderboard through late April, where it consistently outscored rivals in blind human evaluations of reasoning, coding, and multimodal tasks with an Elo rating above 1280. Traders view this as trader consensus for the "best" frontier model, bolstered by the model's March release and no superior challengers emerging by April 30—Google's Gemini 1.5 Pro trails at second (7.5%) despite its long-context window, while OpenAI's GPT-4 Turbo lags further amid delays in GPT-4o. Lower odds for xAI's Grok-1.5 and DeepSeek reflect niche strengths but weaker overall benchmarks, with resolution hinging on final leaderboard snapshots amid typical pre-deadline volatility.
Experimental AI-generated summary referencing Polymarket data · Updated


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