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Finance · AI race

Anthropic vs OpenAI - higher valuation on December 31?

As of 8 November 2026, traders on Polymarket see a 86% chance for “Anthropic vs OpenAI - higher valuation on December 31”, down from 92% a week ago.

It moved +4.5 pts in the past 24 hours, and stood at 92% 30 days ago.

Open on the mapRules and result on Polymarket

Chances now

New to this? How to read a market · What the odds mean

OutcomeChance24 hours7 daysTraded, 7 days
Yes86%+4.5 pts−6.0 pts$25k

A price of 86% means traders pay about $0.86 for a Yes share, which pays $1 if the answer is Yes. It is the crowd’s estimate, not a forecast by Nimb.

Key facts

Volume and liquidity, explained · How markets resolve · Fees

Largest public holders

WalletHoldsValueUnrealised P&L
thoodrYes$15k−$927
0xef97…ab2cYes$9k−$560
TheReturnOfDarthMaulYes$6k−$291
0x2b67…b814No$4k+$1k
phdcapitalYes$2k+$175
CrypYes$2k−$91
edwardmarkflyNo$1k+$268
HEBI55Yes$860−$60

Value is shares × the current price of the side held. Wallets holding both sides of the same market are left out: their positions cancel and are not a bet. A dash means the cost basis is unknown. Holders are public data; this is not a signal to copy. How to read holders.

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Prediction markets are risky and you can lose your whole stake. Risk disclosure.