- Will Anthropic have the best AI Agent at the end of September 2026?81¢
- Will OpenAI have the best AI Agent at the end of September 2026?17¢
- Will Z.ai have the best AI Agent at the end of September 2026?<1¢
- Will SpaceXAI have the best AI Agent at the end of September 2026?<1¢
- Will Meta have the best AI Agent at the end of September 2026?1¢
- Will Alibaba have the best AI Agent at the end of September 2026?<1¢
- Will Google have the best AI Agent at the end of September 2026?<1¢
- Will Moonshot have the best AI Agent at the end of September 2026?<1¢
- Will DeepSeek have the best AI Agent at the end of September 2026?<1¢
- Will Xiaomi have the best AI Agent at the end of September 2026?<1¢
- Will MiniMax have the best AI Agent at the end of September 2026?<1¢
- Will Nvidia have the best AI Agent at the end of September 2026?<1¢
This market will resolve according to the company that owns the model that has the highest rank based on the Agent Arena Leaderboard (https://arena.ai/leaderboard/agent) when the table under "Agent Arena" filtered for "Models" is checked on September 30, 2026, 12:00 PM ET. Results from the "Rank" column under the "Agent Arena" Leaderboard tab at https://arena.ai/leaderboard/agent filtered for "Models" will be used to resolve this market. Models will be ordered primarily by their leaderboard rank at the market’s check time. If two or more models are tied on rank, they will be ordered by which model is listed higher on the leaderboard. If a tie still remains, alphabetical order of company names as listed in this market group will be used as a final tiebreaker (e.g., “Google” would be ranked ahead of “SpaceXAI”). This market will resolve based on the company that occupies first place under this ranking. The resolution source for this market is the Agent Arena Leaderboard found at https://arena.ai/leaderboard/agent. If this resolution source is unavailable at check time, this market will remain open until the leaderboard comes back online and will resolve based on the first check after it becomes available. If it becomes permanently unavailable, this market will resolve based on another resolution source.
Anthropic holds an 81% market-implied probability of leading in AI agents by end of September 2026, driven by the August 19 general availability of its computer use and browser use toolsets, Files API, and Agent Skills API, which moved production-grade agent capabilities out of beta. These updates, paired with July releases of Claude Opus 5 and Sonnet 5 optimized for long-running autonomous workflows, have extended Anthropic’s benchmark edge on SWE-bench Verified and Terminal-Bench while strengthening multi-agent orchestration through features like dreaming and outcomes. Recent Slack agent enhancements enabling proactive, context-aware behavior further reinforce trader consensus. OpenAI trails at 17% amid competitive but less specialized agent tooling, with other labs showing minimal near-term catalysts. Resolution hinges on leaderboard snapshots and demonstrated capabilities before September 30.