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PolymarketCloses December 1, 2026

Which company has the best Code Arena WebDev AI model end of November?

Anthropic leads at 81% (about 8 in ten) on Polymarket, as of Oct 31, 19:13 UTC. It's up 8 points in the last 24 hours.

Anthropic 81% ▲ 8 pts · 24h

The odds

as of Oct 31, 19:13 UTC
  • Anthropic 81% +8
  • OpenAI 12% −11
  • Google 4% —
  • Meta 1.9% −1.3
  • Moonshot 1.7% −1.7
  • SpaceXAI 1.7% —
  • Z.ai 1.1% −1
  • DeepSeek 1.1% —
Traded today$3K
Traded in all$25K
Favourite, 7 days+3.5 pts

Anthropic, the last 7 days

Polymarket price
25%50%75%Oct 23Oct 3175%

Oct 24: 78% · Oct 25: 79% · Oct 26: 76% · Oct 27: 75% · Oct 28: 76% · Oct 29: 74% · Oct 30: 74% · Oct 31: 75%

How it resolves

Polymarket's rule, word for word
This market will resolve according to the company that owns the model that has the highest rank based on the arena.ai Code Arena | WebDev Leaderboard when the table under "Code Arena | WebDev" filtered for "Models" is checked on November 30, 2026, 12:00 PM ET. Results from the "Rank" column under the "Code Arena | WebDev" Leaderboard tab at https://arena.ai/leaderboard/code/webdev (Overall) filtered for "Models" 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. 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 which model is listed higher on the leaderboard. If a tie still remains, alphabetical order of 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 first 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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