TOTAL VOLUME:

$142.3b

24H VOL:

$107,419,736

24H TRANSACTIONS:

2,643,541,936

OPEN INTEREST:

$1,594,026,835

471,138

Markets across

35,775

events

MATCHED EVENTS:

2,926

PLATFORM COVERAGE:

5

Polymarket:

38%

VS.

Kalshi:

62%

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Science and Technology
Anthropic announces a Millennium Prize solution by...?
kalshi
polymarket

Will Anthropic solve a Millennium Prize problem?

Total volume:
$136,154
Volume 24h:
$5,823
97%
Liquidity:
$2,632
34%
Open interest:
$33,816
8%

December 31, 2027

 - Polymarket

December 31, 2027 - Polymarket

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolves Jan 1, 2028

Will Anthropic announce a Millennium Prize solution by December 31, 2027?

41%chance
Amount

$

Trade on
polymarket

Trade on Polymarket

At 43¢ buys you 233 shares | Odds: 41% Total Payout: $233 | Net Profit: $133 Multiplier: 2.33x | ROI: 133% | APY: 100% Low liquidity 443 days to resolution
You will be redirected to the platform to complete this trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
polymarket

December 31, 2027

Trade
41%
Yes 43¢No 62¢
5¢
$999
$6,746
0%
9%
N/A
1y 2mo 2w
active
kalshi

Before Jan 1, 2027

20%
2%
Yes 24¢No 81¢
5¢
N/A
$15,829
6%
14%
$7,452
2mo 3w 4d
active
polymarket

December 31, 2026

11%
Yes 12¢No 91¢
3¢
$1,633
$19,891
2%
7%
N/A
2mo 2w 4d
active
PredictionHero
PH Consensus
14.7%
Yes 18¢No 86¢
Avg: 4¢Max: 5¢
polymarket

September 30, 2026

0%
Yes 0¢No 100¢
0.4¢
N/A
$51,729
N/A
N/A
N/A
Settled
No
kalshi

Before Oct 1, 2026

0%
Yes 0¢No 100¢
100¢
N/A
$41,959
N/A
N/A
$26,364
2mo 3w 4d
No
Total markets: 5

Description

This group forecasts whether Anthropic, an artificial intelligence safety and research company, will announce a complete solution to one of the seven Millennium Prize Problems. The problems are major unsolved mathematical problems, and a solution would be a significant scientific achievement.

PredictionHero - Resolution Divergence Alerts (RDA)

Divergence Detected

Issue: The markets diverge on the resolution date and the specific Millennium Prize Problems included. Polymarket has an earlier deadline and excludes one problem.Hero tip: Polymarket's earlier deadline and narrower scope make a 'Yes' resolution less likely than on Kalshi. Consider the probability implications of these differences.

Critical divergence points:

  • Polymarket: Resolves 'Yes' if Anthropic announces a solution to one of five Millennium Prize Problems (excluding Navier-Stokes) by September 30, 2026. Requires an explicit announcement that the problem is solved.
  • Kalshi: Resolves 'Yes' if Anthropic announces a solution to any of the six Millennium Prize Problems unsolved as of September 5, 2026, before October 1, 2026, or January 1, 2027.
Our PredictionHero Resolution Divergence Alerts (RDA) are there to help users identify potential differences across platforms. They do not replace or supersede the official rules and description of any prediction market. Users are solely responsible for reviewing and understanding the applicable rules and resolution criteria before placing any trade or bet. If you notice a potential inconsistency, discrepancy, or error in an alert, please report it to our team so we can review and improve the accuracy of our data.

Polymarket

This market will resolve to "Yes" if Anthropic, or an official representative of Anthropic, announces that Anthropic has solved any of the qualifying Millennium Prize Problems by 11:59 PM ET of the date specified in the title. Otherwise, this market will resolve to "No". The qualifying problems are the Riemann Hypothesis, P versus NP, the Yang-Mills existence and mass gap problem, the Hodge Conjecture, and the Birch and Swinnerton-Dyer Conjecture (https://www.claymath.org/millennium-problems/). Announcements concerning the Navier-Stokes existence and smoothness problem will not qualify. A qualifying announcement must express that the problem has been solved; announcements of partial results or progress toward a solution will not qualify. The announcement must present the solution as the work of Anthropic, its researchers, or its models, alone or jointly with outside researchers. An announcement that only credits or congratulates outside researchers, including researchers who used Anthropic's models, compute, or research credits, will not qualify. No further confirmation from Clay Math Institute or any other organization is required. The primary resolution source for this market will be official information from Anthropic and/or its official representatives; however, a consensus of credible reporting may also be used.

Kalshi

If Anthropic announces a complete solution, developed by Anthropic or researchers collaborating directly with Anthropic on that solution, to one of the six Millennium Prize Problems unsolved as of September 5, 2026 before Oct 1, 2026, then the market resolves to Yes. If Anthropic announces a complete solution, developed by Anthropic or researchers collaborating directly with Anthropic on that solution, to one of the six Millennium Prize Problems unsolved as of September 5, 2026 before Jan 1, 2027, then the market resolves to Yes.

Frequently asked questions

The Anthropic Millennium Prize market dashboard aggregates trading activity from multiple prediction platforms to provide a consensus view on whether Anthropic will announce a solution to a Millennium Prize Problem. Currently, total volume across these platforms exceeds $136,154, with $1,258 traded in the last 24 hours. Polymarket and Kalshi are the primary venues tracked, offering differing perspectives on the likelihood of this event. This allows traders to see a combined probability and overall interest in the Anthropic Millennium Prize market, offering a more comprehensive outlook than any single platform alone.

Prediction market odds, like those found in this market, often provide a more accurate forecast than traditional analyst predictions. This is because markets aggregate the knowledge and insights of many individuals, creating a “wisdom of the crowd” effect. While analyst forecasts rely on the opinions of a few experts, this market reflects the collective judgment of traders who have a financial incentive to be correct. Discrepancies can arise due to differing methodologies or biases, but generally, the market price serves as a robust signal of future probabilities. The current volume of $136,154 suggests strong engagement with this question.

Prices on Polymarket and Kalshi may differ for several reasons. Polymarket and Kalshi can show different implied probabilities for the same outcome because of liquidity, fee structure, participant mix, and how each venue defines the contract. Each platform has its own user base, trading rules, and liquidity, which can lead to variations in price discovery. Additionally, Polymarket currently favors Will Anthropic announce a Millennium Prize solution by December 31, 2027? at 40.5%, while Kalshi leans toward Will Anthropic announce a Millennium Prize solution before Jan 1, 2027? at 20.0%. These differing viewpoints reflect the diverse perspectives of traders on each platform. Market manipulation, though monitored, can also contribute to temporary price discrepancies. Ultimately, these differences offer opportunities for arbitrage, where traders attempt to profit from price variations across venues.

This market is scheduled to resolve around Jan 1, 2028. The outcome will be determined by whether Anthropic publicly announces a verified solution to one of the seven Millennium Prize Problems, as recognized by the Clay Mathematics Institute. Verification will be based on credible public reporting and documentation confirming acceptance by the Institute. It’s important to note that this market focuses solely on a public announcement by Anthropic; the technical validity of the solution is not a factor in determining the outcome of this market.

Several signals or events could significantly impact this market. A major breakthrough in Anthropic’s AI research, particularly related to mathematical problem-solving, would likely drive up prices. Conversely, negative news regarding their progress or a statement indicating they are not actively pursuing a Millennium Prize Problem could lower prices. Public statements from Anthropic’s leadership, publications of research papers, or announcements from the Clay Mathematics Institute could also influence trading activity. The 24-hour volume of $1,258 suggests traders are actively monitoring these developments and adjusting their positions accordingly.