
-1%
SpaceX IPO closing market cap above $1.8T?
24h Vol
$81.9K
Liquidity
$116.1K
Spread
1%
12/31/2027
View marketTechnology
Polymarket market
Track live probability, outcome prices, volume, liquidity, and resolution details for Will Anthropic have the best AI model at the end of July 2026?. The market currently shows a live probability of 78%, $110 in 24h volume, and $6.9K in liquidity.
Probability
78%
24h Volume
$110
Liquidity
$6.9K
This market asks whether Anthropic will be the company with the top-ranked model on the Chatbot Arena leaderboard at the end of July 2026. It is worth watching because the result depends on a very specific public benchmark snapshot, not a broad judgment about which AI lab is “best” in general.
The question is simple in plain English: when the leaderboard is checked on July 31, 2026 at 12:00 PM ET, will the company that owns the highest-ranked model be Anthropic? The market uses the "Rank" section of the Chatbot Arena LLM Leaderboard on lmarena.ai, with the style control turned off, and it resolves to the company in first place under that ranking system. If two models are tied on rank, the market uses Arena score, including unrounded underlying values, and if there is still a tie, the company name order in the market rules breaks it.
Anthropic is one of the leading AI model developers, so its position at the top of a public leaderboard is a meaningful signal about product performance and momentum. The uncertainty comes from the fact that leaderboard standings can change as companies release new models or updates, and the rules here depend on one precise moment rather than an average over time. Readers are effectively looking at whether Anthropic can hold or reach first place under the exact Chatbot Arena scoring rules.
The biggest drivers are new model launches, major updates to existing models, and any leaderboard movement on lmarena.ai that changes the first-place ranking before the July 31 check. Because the market is tied to the company that owns the top model, a competitor such as OpenAI, Google, xAI, or another lab taking the lead would push the answer toward No, while Anthropic releasing a stronger model or regaining first place would support Yes. Any change in how Chatbot Arena scores models, or any temporary absence of the leaderboard at check time, could also matter because the rules specify how those cases are handled.
Related markets

-1%
24h Vol
$81.9K
Liquidity
$116.1K
Spread
1%
12/31/2027
View marketThe current market price implies roughly a 78% chance for the leading outcome, based on live Polymarket pricing. That number is not a prediction from PredictionNinja and it is not a guarantee; it is the current crowd-priced view of the market and can change quickly when new information appears.
Before resolution, the key thing to verify is the exact Chatbot Arena leaderboard page and the time of the snapshot: July 31, 2026 at 12:00 PM ET. The source of truth is the "Rank" section on the leaderboard tab with style control off, and the market depends on the company linked to the model in first place, not just headline commentary about model quality. Readers should also watch for tie conditions, because the rules use Arena score and then company-name ordering if ranks are tied, and the market stays open longer if the leaderboard is unavailable at the scheduled check time.
Track live probability, outcome prices, volume, liquidity, and resolution details for Will Anthropic have the best AI model at the end of July 2026?. The market currently shows a live probability of 78%, $110 in 24h volume, and $6.9K in liquidity.
Track live technology prediction markets focused on AI, major tech events, product launches, innovation forecasts, and emerging industry trends.
Yes
78%
No
22%
This market is currently listed with an end date of Jul 31, 2026. Market timelines can change if the underlying event is postponed, rescheduled, or resolved early.
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 July 31, 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.
Probability signal
The current price implies a strong favorite, so new information would need to be meaningful to move the market sharply.
Liquidity context
Liquidity is present but not especially deep, so spreads and order-book movement still matter.
Spread
The bid-ask spread is tight, which usually points to a more actively priced market.
Recent movement
No 24h movement is available yet.
The current displayed probability is 78%, based on the latest normalized Polymarket data available to PredictionNinja.
The rules and resolution criteria are pulled from the market description provided by Polymarket when available.
Prediction markets can move whenever traders react to new information, liquidity changes, injuries, announcements, news, or other event-specific developments.
No. PredictionNinja displays market data and context for research only. It is not financial, legal, betting, or investment advice.

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