Manifold MarketsNo KYCVerified resolution dataFairly calibratedCurrent community forecastNo 83.6%
Forecasters
16
Question type
binary
Methodology
Play-money forecasting platform
Source type
Forecast
Market data
Updated 12 hours ago
StaleJul 20, 26, 3:53 PM UTCDec 31, 28, 11:59 PM UTC
Trends
Related Markets
Related questions for context, not a comparison of equivalent contracts.
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Manifold MarketsOpenAI + Anthropic vs Google - higher valuation on December 31?
PolymarketWill OpenAI or Anthropic IPO first?
KalshiWill the U.S. take at least 1% stakes in both OpenAI and Anthropic?
KalshiRules
Resolves YES iff the US government nationalizes either OpenAI or Anthropic (or both) by 11:59pm December 31st 2028.
- 'Nationalize' means either the US government owns >50% of the firm's equity with voting rights (by whatever means) or USG takes over operations at the firm using some power like eminent domain or exercising the Defense Production Act.
- Update 2026-07-20 (PST) (AI summary of creator comment): A US Sovereign Wealth Fund owning >50% of voting equity in OpenAI or Anthropic would count as US government ownership for the purposes of this market.
Open markets
AIPOLYMARKETWill CMI declare a Millennium Prize Problem solved by which date?
- 2028+8.0pt56.5%
- 2027+3.5pt33.3%
- 2026+4.0pt10.2%
- Total Vol
- $261.2K
- 24h Vol
- $186.6K
KALSHITop AI model in September?
- claude-fable-5.1-max+4.0pt73%
- claude-opus-5-high+2.0pt6%
- claude-opus-5-max+4.0pt5%
+3 more outcomes
- Total Vol
POLYMARKETAnthropic IPO by which date?
- December 31,+3.0pt90%
- December 15,86%
- November 30,-1.0pt84%
+7 more outcomes
- Total Vol
KALSHIBest AI in Sep 2026?
- Claude+3.0pt81.3%
- ChatGPT-2.0pt13.1%
- Gemini-3.0pt1.9%
+4 more outcomes
- Total Vol
- $401K
KALSHIBest AI at the end of 2026?
- Claude+4.4pt62.4%
- ChatGPT-1.2pt23.8%
- Grok-2.6pt5.9%
+5 more outcomes
- Total Vol
- $10.6M
POLYMARKETOpenAI’s Astra Model: Text Arena Debut?
- 1480+-8.0pt63%
- 1490+-8.5pt54%
- 1500+-0.5pt28%
+2 more outcomes
- Largest IPO by market cap in 2026?
- When will Anthropic officially announce an IPO?
- Gemini 4.0 released by which date?
- OpenAI IPO Closing Market Cap
- Anthropic IPO Closing Market Cap
- Next Google Gemini Pro Model released by which date?
- When will OpenAI achieve AGI?
- Will Anthropic’s valuation hit __ by December 31?
- Will OpenAI's valuation hit __ by December 31?
- Best Chinese AI Company end of September?
Frequently asked questions
- What are the current odds for US government nationalizes OpenAI or Anthropic before 2029??
- Manifold Markets prices No at 84% as of September 8, 2026.
- When does US government nationalizes OpenAI or Anthropic before 2029? resolve?
- US government nationalizes OpenAI or Anthropic before 2029? is scheduled to resolve on December 31, 2028.
- How is US government nationalizes OpenAI or Anthropic before 2029? settled?
- Manifold Markets settles this market as follows: Resolves YES iff the US government nationalizes either OpenAI or Anthropic (or both) by 11:59pm December 31st 2028.