Polymarket AI Race Heats Up: Who Wins the 2026 Foundation Model Race? (Live Market Analysis) Smart money is moving. Here's what the prediction markets are saying about the next 12 months of AI. Market Snapshot (June 18, 2026, 01:45 EST) The prediction markets are pricing in three major storylines right now: Story 1: OpenAI's Next Move (Claude Dominance Q4 2025 Created Urgency) "GPT-5 will be released by December 31, 2026" Current odds: 72% YES (implied probability) Market: Trending UP hard (was 58% on June 1) Volume: $480K in last 24h (highest volume of any AI bet) Smart money signal: OpenAI insiders buying YES heavily. Deuterium Capital and Alameda Research legacy bots also heavy buyers. What this means: The market believes OpenAI will announce GPT-5 within 6 months. That's essentially locked in now.…