
-3%
SpaceX IPO closing market cap above $3T?
24h Vol
$169.4K
Liquidity
$152.5K
Spread
1%
12/31/2027
View marketTechnology
Polymarket market
Track live probability, outcome prices, volume, liquidity, and resolution details for Will the next Claude Opus 4.8 model added to the Arena Leaderboard debut at a score between 1500 and 1510?. The market currently shows a live probability of 7%, $850.3 in 24h volume, and $1.1K in liquidity.
Probability
7%
24h Volume
$850.3
Liquidity
$1.1K
This market asks whether the next newly added Claude Opus 4.8 model on the Arena leaderboard will land in a very specific score band: 1500 to 1510. It is a narrow question because Arena scores can move model by model, and the market only cares about the first qualifying Opus 4.8 entry that appears on the leaderboard.
The event is tied to the Arena.AI Text Arena leaderboard, specifically the "Score" column on the "Text Arena | Overall" tab with style control off. For this market, the key entity is a Claude model explicitly labeled as Opus 4.8, such as "claude-opus-4.8," "claude-opus-4.8-thinking," or "claude-opus-4.8-preview," and it must be newly added to the leaderboard. Resolution uses the score shown at 12:00 PM ET on the calendar day after that first appearance, and the outcome is Yes only if that score falls in the 1500-1510 bracket, with ties going to the higher bracket if the score sits exactly between two bins.
The uncertainty comes from two places: when a qualifying Claude Opus 4.8 model will first appear on the leaderboard, and what score it will show once it is visible under the market’s exact timing rule. People following model launches may care because leaderboard placement is a simple public benchmark for how a new model compares with other text systems, even though the market is not judging quality in the abstract, only the published Arena score. The market is effectively pricing disagreement over whether the debut will be a mid-1500s result, a lower or higher score, or no qualifying Opus 4.8 addition at all.
A new leaderboard entry labeled as an Opus 4.8 variant would be the main price-moving event, especially if it appears with a score near the 1500-1510 range. If multiple qualifying Opus 4.8 models are added on the same ET calendar date, the highest-scoring one controls resolution, so the appearance of more than one candidate could matter. Anything that clarifies the exact model name, the first appearance date, or the published score for the relevant 12:00 PM ET check-in can shift expectations quickly.
Related markets

-3%
24h Vol
$169.4K
Liquidity
$152.5K
Spread
1%
12/31/2027
View marketThe current market price implies roughly a 7% 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.
The source of truth is the Arena.AI leaderboard page named in the rules, not summaries elsewhere, and readers should check the exact score in the specified column and tab. The market depends on the first date a qualifying Claude Opus 4.8 model appears, then uses the score at 12:00 PM ET on the following calendar day, so timing matters as much as the number itself. A reader should also verify that the model is actually labeled Opus 4.8, because Sonnet, Haiku, or other Claude variants do not qualify, and the market resolves only from the published leaderboard score even if other data on the page looks different.
Track live probability, outcome prices, volume, liquidity, and resolution details for Will the next Claude Opus 4.8 model added to the Arena Leaderboard debut at a score between 1500 and 1510?. The market currently shows a live probability of 7%, $850.3 in 24h volume, and $1.1K in liquidity.
Track live technology prediction markets focused on AI, major tech events, product launches, innovation forecasts, and emerging industry trends.
Yes
7%
No
93%
Polymarket has not provided a clear end date for this market yet.
This market will resolve according to the score the next Claude Opus 4.8 model added to the Arena.AI Leaderboard (arena.ai/leaderboard/text) has at 12:00 PM ET on the calendar date following the date on which it first appears on the leaderboard. Otherwise, this market will resolve to "No". If the relevant score falls exactly between two brackets, this market will resolve to the higher bracket. Any Claude model newly added to the leaderboard and labeled as "Opus 4.8" may qualify (e.g., claude-opus-4.8, claude-opus-4.8-thinking, claude-opus-4.8-preview, or similar). Claude models labeled only as Sonnet, Haiku, or another non-Opus 4.8 variant will not qualify. 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. This market will resolve solely based on the specified score in the Score column of the leaderboard, regardless of any underlying granular or unrounded data presented elsewhere. If multiple qualifying models are added to the leaderboard on the same calendar date (ET), the highest-scoring model will be used for resolution. Models added to the leaderboard on the calendar date following the initial qualifying model’s first appearance will not be considered. A qualifying model must be newly added to the Arena.AI Leaderboard. Whether the model was previously released, publicly accessible, in beta, or otherwise available before appearing on the leaderboard is irrelevant for this market. The resolution source for this market is the Chatbot Arena LLM Leaderboard found at arena.ai/leaderboard/text. If this resolution source is unavailable at 12:00 PM ET on the calendar date following the date on which the qualifying model first appears on the leaderboard, this market will resolve based on the first subsequent instance at which such a score becomes available on the leaderboard. If it remains unavailable through the end of the seventh day after the qualifying model first appears on the leaderboard or if no qualifying model release occurs by June 30, 2026, 11:59 PM ET, this market will resolve to the lowest bracket.
Probability signal
The current price implies a lower-probability outcome, which can make the market more sensitive to surprise news.
Liquidity context
Liquidity is present but not especially deep, so spreads and order-book movement still matter.
Spread
The bid-ask spread is wider, so the headline probability may be less precise than it looks.
Recent movement
The 24h move is notable, so recent news or market activity may have changed trader expectations.
The current displayed probability is 7%, 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.

--
24h Vol
$478.1K
Liquidity
$245.2K
Spread
0%
6/30/2026
View market
-0.1%
24h Vol
$30.9K
Liquidity
$309K
Spread
0%
6/30/2026
View market
-0.5%
24h Vol
$21.7K
Liquidity
$29K
Spread
0%
Live
View market
-10%
24h Vol
$16.4K
Liquidity
$16.1K
Spread
1%
12/31/2027
View market
+0.4%
24h Vol
$17.7K
Liquidity
$67.5K
Spread
1%
12/31/2026
View market