Humanity's Last Exam, shortest of three requests

GPT 6 Astra on “Humanity's Last Exam item 15”

Longer

1.14× longer

Worked 14% past the request, 11 s over.

Asked for
1.25 minutes
Worked
1 min 26 s
Grade
Passed
Score 100 of 100. Graded during the run.
How it ended
Ended on its own
Every detail of this run
Agent
GPT 6 Astra, in Codex
Asked for
1.25 minutes: “Please work on this task for a full 1.25 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked
1 min 26 s (86 s)
Ratio
1.14× the request
How it ended
Ended on its own
Grade
Passed
It was marked correct by the judge. The grader returned 1. Pass rule: The benchmark's own judge marks the answer correct.
Score
100 of 100
Graded during the run. The paper's value.
Clock tool
The agent could call a clock tool to check the requested time.
Wording
The standard sentence, used from 4 September 2026.
Run id
c3wliwfc67
Data release
26 Sep 2026
The other requests for GPT 6 Astra on this task, and the other agents at this request
Astra on this taskAskedWorkedSplitResult
Shortest (this run)1.25 minutes1 min 26 s1.14× longer
Middle5 minutes5 min 12 sWithin 5%
Longest20 minutes20 min 11 sWithin 5%
Other agents, shortest request
GPT 5.6 Sol1.25 minutes1 min 27 s1.15× longer
Claude Fable 5.11.25 minutes1 min 28 s1.18× longer

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Data and citation

Upstream: Phan et al., 2025