Manifold MarketsNo KYCVerified resolution dataFairly calibratedCurrent community forecast18h - 20h 30.8%Leader of 10 outcomes
Forecasters
9
Question type
multiple choice
Methodology
Play-money forecasting platform
Source type
Forecast
7d Change
0.0 pts
Market data
Updated 2 hours ago
StaleMay 30, 26, 6:15 PM UTCNov 1, 26, 3:59 AM UTC
Trends
Rules
This market will resolve to the highest 50% time horizon, as reported by METR, for the first Claude Opus 4.8 model to appear on METR's graph.
- Claude Opus 4.8.x variants count for the purpose of this market. 4.7 or earlier would not count.
- Opus 5 or later would not count.
- Sonnet would not count.
- 50% time horizon is a measure of AI autonomy based on the length of tasks that AI can do: roughly, it is the time that humans take to complete tasks that an AI system can successfully do 50% of the time.
- See METR's Time Horizon 1.1 update for the technical definition.
Open markets
AI
KALSHITop AI model in September?
- claude-fable-5.1-max-12.0pt72%
- claude-opus-5-high+2.0pt6%
- claude-opus-4-6-thinking4%
+3 more outcomes
- Total Vol
- $157.2K
- 24h Vol
- $119.4K
POLYMARKETWill CMI declare a Millennium Prize Problem solved by which date?
- 2028+10.0pt60%
- 2027+2.0pt31.4%
- 2026+2.0pt8.6%
POLYMARKETAnthropic IPO by which date?
- December 31,-1.0pt90%
- December 15,+3.5pt90%
- November 30,85%
+7 more outcomes
- Total Vol
KALSHIBest AI at the end of 2026?
- Claude-0.7pt61.4%
- ChatGPT-2.7pt22.8%
- Grok-0.1pt7.9%
+5 more outcomes
- Total Vol
- $10.6M
KALSHIBest AI in Sep 2026?
- Claude+3.0pt81.3%
- ChatGPT-4.0pt11.2%
- Grok2.8%
+4 more outcomes
- Total Vol
- $377.7K
- 24h Vol
POLYMARKETOpenAI’s Astra Model: Text Arena Debut?
- 1480+-2.5pt66%
- 1490+-9.0pt51%
- 1500+-3.5pt23%
+2 more outcomes
- Largest IPO by market cap in 2026?
- OpenAI IPO Closing Market Cap
- When will Anthropic officially announce an IPO?
- Anthropic IPO Closing Market Cap
- When will OpenAI achieve AGI?
- Will Anthropic’s valuation hit __ by December 31?
- Will OpenAI's valuation hit __ by December 31?
- Next Google Gemini Pro Model released by which date?
- Best Chinese AI Company end of September?
- What will OpenAI's IPO valuation be?
Frequently asked questions
- What are the current odds for Claude Opus 4.8 METR 50% time horizon?
- Manifold Markets prices 18h - 20h at 31% as of September 8, 2026.
- When does Claude Opus 4.8 METR 50% time horizon resolve?
- Claude Opus 4.8 METR 50% time horizon is scheduled to resolve on November 1, 2026.
- How is Claude Opus 4.8 METR 50% time horizon settled?
- Manifold Markets settles this market as follows: This market will resolve to the highest 50% time horizon, as reported by METR, for the first Claude Opus 4.8 model to appear on METR's graph.