Anthropic's May 2026 Series H financing at a $965 billion post-money valuation, exceeding OpenAI's $852 billion March mark, underpins the 92.5% market-implied probability that Anthropic holds the higher valuation by year-end. The round coincided with Anthropic's annualized recurring revenue surging to $47 billion, roughly double OpenAI's ~$25 billion pace, reflecting stronger product adoption for Claude models and investor appetite for its growth trajectory. Traders price in continued momentum from recent funding and revenue differentials, consistent with private-market benchmarks. That said, an OpenAI IPO, major model release, or renewed funding round could narrow or reverse the gap before December 31 resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedAnthropic
$53,149 Vol.
$53,149 Vol.
Anthropic
$53,149 Vol.
$53,149 Vol.
NPM Prices are published for trading days only and are updated once daily at 1:00 PM ET on the following calendar day.
If NPM has not published relevant data for the specified date by 1:00 PM ET on January 1, 2027, this market may remain open until 11:59 PM ET on January 4, 2027. If no further data is released by that time, the market will resolve according to the latest available data.
If NPM ceases publishing relevant data prior to the specified date, this market will resolve based on the NPM data published prior to the cessation of coverage, as well as applicable public market capitalization data following an IPO or direct listing.
If a company completes an IPO or direct listing before the specified date, this market will resolve according to the company's public market capitalization at the market close of the specified date or the most recent trading day.
Public market capitalization will be determined using the final official regular-hours trading price published for the company's primary listed common equity on its primary exchange for the specified date or the most recent trading day, multiplied by the company's total outstanding common shares at the relevant time.
If a listed company merges with or acquires another entity and remains the parent company, no change to resolution methodology applies.
If a listed company is acquired, merges into another entity and is no longer the surviving parent company, or otherwise ceases to exist as an independent entity prior to the end of the period, only the NPM valuation and applicable public market capitalization achieved prior to completion of the transaction will be considered for resolution. No transaction, acquisition, or merger consideration will be considered for resolution.
The resolution source for this market is NPM data published here (https://fe.secondmarket.com/companies/company-3e197763-4ff8-4d8c-bd1f-cc2792937757/data?return_url=https://polymarket.copilot.markets/finance/privates) and here (https://fe.secondmarket.com/companies/company-30839e0b-2730-4495-839f-1bf638fa9cca/data?return_url=https://polymarket.copilot.markets/finance/privates). The resolution source for any period following an IPO, direct listing, or relevant corporate action, will be official exchange trading data and publicly reported share counts.
If Anthropic's valuation is equal to OpenAI's valuation at resolution, this market will resolve to 50-50.
Revisions to previously published NPM data made after their initial release will not be considered, unless made to correct clearly erroneous data.
Market Opened: May 19, 2026, 4:24 PM ET
Resolver
0x65070BE91...NPM Prices are published for trading days only and are updated once daily at 1:00 PM ET on the following calendar day.
If NPM has not published relevant data for the specified date by 1:00 PM ET on January 1, 2027, this market may remain open until 11:59 PM ET on January 4, 2027. If no further data is released by that time, the market will resolve according to the latest available data.
If NPM ceases publishing relevant data prior to the specified date, this market will resolve based on the NPM data published prior to the cessation of coverage, as well as applicable public market capitalization data following an IPO or direct listing.
If a company completes an IPO or direct listing before the specified date, this market will resolve according to the company's public market capitalization at the market close of the specified date or the most recent trading day.
Public market capitalization will be determined using the final official regular-hours trading price published for the company's primary listed common equity on its primary exchange for the specified date or the most recent trading day, multiplied by the company's total outstanding common shares at the relevant time.
If a listed company merges with or acquires another entity and remains the parent company, no change to resolution methodology applies.
If a listed company is acquired, merges into another entity and is no longer the surviving parent company, or otherwise ceases to exist as an independent entity prior to the end of the period, only the NPM valuation and applicable public market capitalization achieved prior to completion of the transaction will be considered for resolution. No transaction, acquisition, or merger consideration will be considered for resolution.
The resolution source for this market is NPM data published here (https://fe.secondmarket.com/companies/company-3e197763-4ff8-4d8c-bd1f-cc2792937757/data?return_url=https://polymarket.copilot.markets/finance/privates) and here (https://fe.secondmarket.com/companies/company-30839e0b-2730-4495-839f-1bf638fa9cca/data?return_url=https://polymarket.copilot.markets/finance/privates). The resolution source for any period following an IPO, direct listing, or relevant corporate action, will be official exchange trading data and publicly reported share counts.
If Anthropic's valuation is equal to OpenAI's valuation at resolution, this market will resolve to 50-50.
Revisions to previously published NPM data made after their initial release will not be considered, unless made to correct clearly erroneous data.
Resolver
0x65070BE91...Anthropic's May 2026 Series H financing at a $965 billion post-money valuation, exceeding OpenAI's $852 billion March mark, underpins the 92.5% market-implied probability that Anthropic holds the higher valuation by year-end. The round coincided with Anthropic's annualized recurring revenue surging to $47 billion, roughly double OpenAI's ~$25 billion pace, reflecting stronger product adoption for Claude models and investor appetite for its growth trajectory. Traders price in continued momentum from recent funding and revenue differentials, consistent with private-market benchmarks. That said, an OpenAI IPO, major model release, or renewed funding round could narrow or reverse the gap before December 31 resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated


Beware of external links.
Beware of external links.
Frequently Asked Questions