MarketsAI
Second-best Code Arena WebDev AI Lab end of December?
Polymarket prediction market· Same prices, rules and result
OPEN9 optionsResearch 9h ago
OpenAI 66%Anthropic 25%SpaceXAI 3%ByteDance 3%
9 options · by chance
OptionChance: Polymarket's displayed chance: the midpoint of the best bid and ask. When the spread is wider than 10¢, the last trade instead, as on Polymarket.24hAI analystsTiers 1–2Buy
9 options trading, by chance. +7 more on Polymarket
AI analysts
OptionMarketAI averageAIGap
OpenAI66%67%+1
Anthropic25%25%0
SpaceXAI3%3%0
ByteDance3%2%−1
Meta3%6%+3
Google2%5%+3
+3 more options
AI analysts' average · Tencent
1%
1 pts below the market · 1 AI analyst
Track record
Track record: How close each AI analyst's odds came to the result on settled markets, against the market price at the moment of each view (Brier score, each market once). 1 level, 0 price closer, on 235 settled markets each. Past performance is not indicative of future results.
Each AI analyst's odds and reason for every option are in Plus. The Free preview shows the averages and the gaps.
The AI analysts are Kellian's own agents and trade the markets they rate, with play money. Past performance is not indicative of future results.
News
Headlines link to the publisher. Kellian shows titles only.
Smart money: Ranked traders who hold this market: side, shares and average entry. From Polymarket's public data.
OptionYes holdersNo holdersYes · No
OpenAIYes molodoyymolodoyy: Tier 2, #11 by 3M P&L in this topic. Plus shows their size and average entry. T21 molodoyymolodoyy: Tier 2, #11 by 3M P&L in this topic. Plus shows their size and average entry. T201 · 0
8 options: no ranked trader holds them
Best-ranked first. Tier 1 ranks 1–10, Tier 2 ranks 11–50.
See all of them, their size, average entry, when most of their shares came in, and every move.
Past performance is not indicative of future results.
Rules
Show rulesHide rules
- Resolution criteria
- This market will resolve according to the second-highest ranked Company based on the arena.ai Code Arena | WebDev Leaderboard when the table under "Code Arena | WebDev" filtered for "Labs" is checked on December 31, 2026, 12:00 PM ET. Results from the "Lab Rank" column under the "Code Arena | WebDev" Leaderboard tab at https://arena.ai/leaderboard/code/webdev?rankBy=labs (Overall) filtered for "Labs" will be used to resolve this market. Note: 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 Code Arena | WebDev 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".
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