OpenAI’s GPT-6 Astra, released September 3, 2026, represents the company’s latest push on Humanity’s Last Exam (HLE), a 2,500-question expert benchmark from the Center for AI Safety and Scale AI that tests graduate-level reasoning across mathematics, sciences, and humanities. Current leaderboards show OpenAI’s strongest entries—GPT-6 Astra and GPT-5.4 Pro variants—reaching the mid-50s to low-60s percent range with tools, still trailing Anthropic’s Claude Fable 5.1 and Opus 5 models at 59–65%. Progress stems from enhanced chain-of-thought, tool integration, and iterative GPT-5.6 releases earlier in the year. With four months remaining in 2026, additional OpenAI model updates or agentic scaffolding could close the gap before year-end resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated$75,676 Vol.
50%+
90%
55%+
74%
60%+
37%
65%+
20%
70%+
11%
$75,676 Vol.
50%+
90%
55%+
74%
60%+
37%
65%+
20%
70%+
11%
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".
Market Opened: Jul 23, 2026, 6:53 PM ET
Resolver
0x65070BE91...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".
Resolver
0x65070BE91...OpenAI’s GPT-6 Astra, released September 3, 2026, represents the company’s latest push on Humanity’s Last Exam (HLE), a 2,500-question expert benchmark from the Center for AI Safety and Scale AI that tests graduate-level reasoning across mathematics, sciences, and humanities. Current leaderboards show OpenAI’s strongest entries—GPT-6 Astra and GPT-5.4 Pro variants—reaching the mid-50s to low-60s percent range with tools, still trailing Anthropic’s Claude Fable 5.1 and Opus 5 models at 59–65%. Progress stems from enhanced chain-of-thought, tool integration, and iterative GPT-5.6 releases earlier in the year. With four months remaining in 2026, additional OpenAI model updates or agentic scaffolding could close the gap before year-end resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated



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