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Will Anthropic have the best AI model at the end of June 2026?

64.5%
Consensus Probability (Model B — Geometric Mean of Odds)
2 platforms · 1pp spread · $594K

Across 2 prediction market platforms, "Will Anthropic have the best AI model at the end of June 2026?" has a consensus probability of 64.5%. Polymarket: 64.8%, Manifold: 64.1%. Consensus via geometric mean of odds (Satopaa et al., 2014), validated by IARPA ACE tournament.

Platform Comparison — white line = consensus
Polymarket
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65%
$594K
Manifold
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64%
21 traders
Probability Over Time
All 6 Consensus Models
Market Details
Polymarket
Updated 9h ago
Volume
$594K
Liquidity
$25K
Bid / Ask
64.0% / 65.7%
Spread
1.7%
Opened
Apr 2026
Resolves
Jun 2026
This market will resolve according to the company which owns the model which has the highest arena score based off the Chatbot Arena LLM Leaderboard (https://lmarena.ai/) when the table under the "Leaderboard" tab is checked on June 30, 2026, 12:00 PM ET. Results from the "Arena…
Manifold
Updated 31m ago
Volume
Liquidity
Bid / Ask
— / —
Spread
Opened
Apr 2026
Resolves
Jun 2026

About This Consensus

Computed from 2 platforms using geometric mean of odds (Satopaa et al., 2014). This method was validated by the IARPA ACE forecasting tournament as the most accurate probability aggregation technique. Full methodology →

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