This market will resolve according to the company which owns the model which has the highest arena rank based off the Chatbot Arena LLM Leaderboard (https://lmarena.ai/) when the table under the "Leaderboard" tab is checked on June 30, 2026, 12:00 PM ET.
Results from the "Rank" section on the Leaderboard tab of https://lmarena.ai/leaderboard/text with the style control off 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 first 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 resolve based on the first check after it becomes available. If it becomes permanently unavailable, this market will resolve based on another resolution source.
Tech
· Big Tech
· GPT-5
Which company has best AI model end of June?
Anthropic
$1.4M Volume
85%
Google
$965.5K Volume
11%
OpenAI
$857.6K Volume
3%
xAI
$1.5M Volume
1%
Z.ai
$672.3K Volume
1%
DeepSeek
$814.3K Volume
1%
Mistral
$803.2K Volume
1%
Microsoft
$559.6K Volume
1%
Amazon
$469.4K Volume
1%
ByteDance
$476.1K Volume
1%
Alibaba
$721.6K Volume
1%
Moonshot
$726.4K Volume
1%
Meituan
$751.5K Volume
1%
Meta
$465.1K Volume
1%
Baidu
$501K Volume
1%
Company G
50%
Other
50%
Company F
50%
Company H
50%
About This Market
AI Analysis
The prediction market centered on identifying the company with the best AI model by the end of June currently shows a probability of 28.0%, reflecting traders' assessments of various contenders' capabilities. With a trading volume of $3.7 million, this market highlights the competitive landscape of AI development, as the outcome will be determined by the highest arena score on the Chatbot Arena LLM Leaderboard. Understanding these dynamics is crucial for investors and tech enthusiasts alike, as advancements in AI models can significantly impact industry trends and company valuations.
Similar Markets

SpaceX IPO closing market cap above ___ ?
>$1T
Yes 99¢No 1¢
>$1.2T
Yes 98¢No 2¢

Largest Company end of June?
Yes 91¢No 9¢
Yes 5¢No 95¢

SpaceX IPO Closing Market Cap (Lowest Strikes)
1T+
Yes 99¢No 1¢
<500B
Yes 1¢No 99¢

Which company has second best AI model end of June?
Yes 66¢No 34¢
Yes 28¢No 72¢

Claude Mythos released by…?
July 31
Yes 84¢No 16¢
June 30
Yes 60¢No 40¢

SpaceX IPO Closing Market Cap
2.0T-2.5T
Yes 46¢No 54¢
1.5T-2.0T
Yes 37¢No 63¢

Which company has the best Math AI model end of June?
Yes 65¢No 35¢
Yes 18¢No 82¢

Claude Opus 4.8: Arena Debut?
<1480
Yes 99¢No 1¢
1520+
Yes 2¢No 98¢