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Second-best AI Agent Lab end of October?

Second-best AI Agent Lab end of October?

Resolves Oct 31, 2026·$325 24h vol·tech
$47.1k total volume·Open for 45 days

OpenAI

82%+31.5%
OutcomeYesNo
OpenAI
Anthropic
Google
Moonshot
SpaceXAI
Z.ai
Alibaba
Baidu
MiniMax
Meituan

Order Book

OpenAI

PriceSharesTotal
91.0¢20$18
90.0¢7$6
89.0¢100$89
86.0¢26$22
85.0¢26$22
84.0¢33$28
83.0¢564$468
82.0¢140$115
81.0¢last trade
2.0¢ spread
80.0¢366$293
79.0¢295$233
78.0¢27$21
30.0¢20$6
29.0¢20$6
20.0¢5$1
15.0¢200$30
1.0¢5$0
$590 bids$769 asks

Resolution Criteria

This market will resolve according to the second-highest ranked Company based on the arena.ai Agent Arena Leaderboard when the table under "Agent Arena" filtered for "Labs" is checked on October 31, 2026, 12:00 PM ET. Results from the "Rank" column under the "Agent Arena" Leaderboard tab at https://arena.ai/leaderboard/agent filtered for "Labs" will be used to resolve this market. Models marked “AutoEval” at the applicable check time will not be considered, regardless of whether they display a rank or score. AI companies will be ordered primarily by their Lab Rank at the market’s check time. If the results based on the lab ranking are ambiguous or unavailable, the relevant AI companies will be ordered according to their highest-ranking AI model in the leaderboard’s “Models” view. If two or more models are tied on rank, they will be ordered by which model is listed higher on the leaderboard. If a tie still remains, alphabetical order of AI lab/company names as listed in this market group will be used as a final tiebreaker (e.g., “Google” would be ranked ahead of “SpaceXAI”). This market will resolve based on the company that occupies second place under this ranking. The resolution source for this market is the arena.ai Agent Arena Leaderboard. If this resolution source is unavailable at check time, this market will remain open until the leaderboard comes back online and will resolve based on the first check after it becomes available. If it becomes permanently unavailable, this market will resolve to "Other".

OpenAI

81%