Anthropic
OpenAI
Google
Meta
SpaceXAIMarket analysis
Analysis generated Sep 11, 2026
Polymarket gives Anthropic 88% to win "best AI model end of September" based on Claude Fable 5.1 and Mythos 5.1 dominating September's leaderboards on reasoning, coding, and agentic benchmarks. OpenAI's GPT-6 Astra launched September 3 with strong cybersecurity results but trails key public indices at 9% implied odds. Google and Meta are negligible at 3% and 0%, with resolution on official arena.ai Text Arena (Overall) rankings imminent.
As of September 11, 2026, the Polymarket odds for Which company has the best AI model end of September? are: Anthropic: 89%, OpenAI: 9%, Google: 3%. These probabilities are derived from real-money trading and update in real time.
Which company has the best AI model end of September? is currently listed on Polymarket. Check PredictMarketCap for cross-platform availability โ we surface the same event on Polymarket, Kalshi, Limitless & Predict.fun when it's listed on more than one platform.
Prediction market odds reflect the aggregate opinion of traders who risk real money on outcomes. The price of a share (e.g., 65ยข) represents the market's implied probability (65%). Prices move as traders buy and sell based on new information, polls, and analysis.
Which company has the best AI model end of September?
Updated 13m ago







