Will any AI model reach a Chatbot Arena score of at least 1550 by December 31?

Prediction markets currently give a 52% probability that Will any AI model reach a Chatbot Arena score of at least 1550 by December 31?. This contract trades at 52¢ on Polymarket, closing December 31, 2026.

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52¢
Bid/Ask 46/57¢·Spread 11¢·Vol $214.32·OI $2,916.22·Closes Dec 31, 2026·253d remaining
0x4669581cb5c701fd3632a5529ee702353d91d3d4320aba33a31683b388b83869
7-day price493 snapshots · 16 regime
65¢52¢ current
Apr 848¢Apr 21

Resolution rules

This market will resolve to "Yes" if any model on the Chatbot Arena LLM Leaderboard (https://lmarena.ai/) reaches at least the specified Arena Score by December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No". Results from the 'Score' section on the 'Text Arena' Leaderboard tab (https://lmarena.ai/leaderboard/text), with the style control unchecked, will be used to resolve this market. The resolution source is the Chatbot Arena LLM Leaderboard (https://lmarena.ai/). If this source is temporarily unavailable, the market remains open until it is accessible again; if permanently unavailable, this market will resolve to "No".

Indicators

IY (Yes) 133.1%
IY (No) 156.2%
Adj IY 78%
CRI 1
Overround 0.0%
▶ Full indicator table (5)
IndicatorValue
IY (Yes)133.1%
IY (No)156.2%
Adj IY78%
CRI1
Overround0.0%

Regime

Label
neutral
Score
0.409
Spread
11¢
Computed
4/21/2026, 8:28:50 PM
Observability mediumEvent type scientific
Indicators computed 4/21/2026, 8:23:18 PM

Trade

View on polymarketsf trade 0x4669581cb5c701fd3632a5529ee702353d91d3d4320aba33a31683b388b83869 yes 100

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