Price history
Select outcomes to plot.
Description
Claude Opus 4.8: Arena Debut? tracks the first newly added Claude Opus 4.8 model on the Arena.AI leaderboard and the score it records at 12:00 PM ET the day after its first appearance. If the score lands exactly between two brackets, the higher bracket resolves. If no qualifying model appears or the leaderboard data is unavailable by the deadline, this market resolves to No. Only models titled with Opus 4.8 qualify; other variants do not.
Event stats
24h volume
Total volume
Liquidity
Markets
6
Market highlights
Top market
24h gainer
24h loser
Highest volume
Top market
24h gainer
24h loser
Highest volume
Related events
Largest Company end of June?Which company has best AI model end of June?Claude Mythos released by…?Will Anthropic’s valuation hit __ by December 31?Largest Company end of December 2026?Claude 5 released by…?Anthropic IPO Closing Market CapWill SpaceX's valuation hit __ by June 30?Will OpenAI's valuation hit __ by December 31?Trump orders federal review of AI model releases by...?
Markets
Rules
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.