- Will the highest score achieved by an OpenAI model on Humanity’s Last Exam in 2026 be 55% or higher?66¢66%
- Will the highest score achieved by an OpenAI model on Humanity’s Last Exam in 2026 be 60% or higher?15¢15%
- Will the highest score achieved by an OpenAI model on Humanity’s Last Exam in 2026 be 65% or higher?<1¢<1%
- Will the highest score achieved by an OpenAI model on Humanity’s Last Exam in 2026 be 70% or higher?1¢1%
Recent OpenAI releases in the GPT-6 family, including GPT-6 Astra and GPT-6.1 Sol in September and October 2026, represent the main catalyst shaping trader views on the highest HLE score achievable this year. These models post competitive results on variants of Humanity’s Last Exam, a 2,500-question expert benchmark spanning science, math, and other fields, yet trail leading Claude Opus and Fable configurations from Anthropic on most public leaderboards, where top scores range from the mid-50s to low-70s percent depending on tool use and verification. Ongoing rapid iteration at OpenAI, combined with potential year-end model updates or refined evaluations, keeps the outcome open while underscoring how benchmark gaps between labs can shift quickly on new releases.
Rules
This market will resolve to "Yes" if any model published by OpenAI achieves at least the specified accuracy on Humanity’s Last Exam by December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No". For resolution, “accuracy” refers solely to the value labeled “HLE Accuracy” or a clear equivalent metric if the data’s presentation or terminology is restructured, regardless of the model’s Calibration Error or any other displayed metric. The resolution source will be the official Humanity’s Last Exam leaderboard at https://agi.safe.ai/. If the resolution source becomes unavailable during the listed timeframe, this market will remain open to allow the relevant data to become available again. If the source remains unavailable after the end of the listed timeframe or is otherwise confirmed to be permanently unavailable, official Humanity’s Last Exam results published elsewhere may be used. If no official alternative source is available, this market will resolve to "No".