Which company has the best Coding AI model end of May?

Which company has the best Coding AI model end of May? is a tech prediction market focused on the Chatbot Arena LLM Leaderboard’s Coding category. The market forecasts which company will own the model ranked first on the Arena’s Text Arena | Coding leaderboard when it is checked on May 31, 2026 at 12:00 PM ET. In practical terms, traders are betting on which AI lab or company will finish the month with the top coding model based on the leaderboard’s ranking and tie-breaking rules.

The resolution uses the Chatbot Arena leaderboard at lmarena.ai, with the model owning the highest-ranked entry declared the winner. If models are tied on rank, Arena score is used, followed by granular score data and then company name ordering as a final tiebreaker. This makes the event a clear event prediction tied to a specific external benchmark rather than a subjective judgment.

Current market probability is about 98.6%, indicating strong market sentiment around the expected outcome, though the result still depends on the leaderboard at the end-of-May check. The market began on April 27, 2026 and closes on May 31, 2026.