Which company has the best AI Agent end of July?: how this market works

What you need to know

This market is asking a simple question: which AI company will have the top-ranked AI agent in the world on July 31, 2026? An 'AI agent' is an AI that can take actions on your behalf, like browsing the web, writing code, or completing multi-step tasks, not just answering questions. A Yes for Anthropic means their model sits at number one on a specific public leaderboard that day. A Yes for any other company means someone knocked Anthropic off the top spot. The answer is decided by one specific source: the Agent Arena Leaderboard at arena.ai, checked at exactly 12:00 PM ET on July 31, 2026. Whatever company owns the model ranked number one at that moment wins. If two models are tied, the one listed higher on the page wins. If the leaderboard website is down that day, the market waits until it comes back online. The outcome depends entirely on that single snapshot in time, not on any human judge or opinion. None of the recent news provided is relevant to this market. The headlines cover unrelated topics like a staffing company, a Hong Kong joint venture, and IBM's quantum computing strategy. To follow this market, the useful things to watch would be new AI model releases from Anthropic, OpenAI, Google, or other major labs, and any shifts in the Agent Arena Leaderboard rankings in the months leading up to July 2026. The market is heavily lopsided: Anthropic is priced at 95%, meaning the market currently sees their lead as very strong. The main uncertainty here is not really 'who will win' but rather whether something unexpected disrupts Anthropic's position. That could happen if a rival lab releases a significantly better agent model before July 31, 2026, which is still over a year away. In fast-moving AI, a year is a long time, and any major lab could release a breakthrough model that reshuffles the leaderboard completely.

The odds right now

• Anthropic-2.8 pts (1w)95%
• OpenAI-0.7 pts (1w)1%
• Moonshot+0.3 pts (1w)1%
• Alibaba+0.4 pts (1w)0%
• Google0%
• xAI0%
• ByteDance0%
• Baidu0%
• Amazon0%
• Z.ai0%
• Mistral0%
• DeepSeek0%

Price history

How this resolves

Resolves July 31, 2026

This market will resolve according to the company that owns the model that has the highest rank based on the Agent Arena Leaderboard (https://arena.ai/leaderboard/agent) when the table under "Agent Arena" filtered for "Models" is checked on July 31, 2026, 12:00 PM ET. Results from the "Rank" column under the "Agent Arena" Leaderboard tab at https://arena.ai/leaderboard/agent will be used to resolve this market. Read the full resolution rules on the live market page.

Related

Same markets. A fraction of the fee.

These apps all route to the same exchange order book. The difference is what each one adds on top of the exchange's own fee.

Published rates, checked July 2026. MetaMask charges a flat 4 percent per prediction trade. Jupiter adds a fee equal to the exchange's own taker fee at fill time, roughly 2 to 4 percent at typical odds. Where a market carries an exchange settlement fee, it applies everywhere, whichever app you use. Paridesk adds nothing on maker orders.

Trade this market on Paridesk: non-custodial, 0.5% fee.