Humanity's Last Exam, shortest of three requests

GPT 6 Astra on “Humanity's Last Exam item 5”

Longer

1.15× longer

Worked 15% past the request, 12 s over.

Asked

Worked

Safety cutoff 40 min, off the scale

Every detail of this run

Agent: GPT 6 Astra, in Codex
Benchmark: Humanity's Last Exam
Task: Humanity's Last Exam item 5
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 27 s (87 s)
Ratio: 1.15× the request
How it ended: Ending not labelled yet
Grade: Did not pass; It was not marked correct by the judge. The grader returned 0. Pass rule: The benchmark's own judge marks the answer correct.
Score: 0 of 100; Nothing to grade, counted as 0. The paper's value.
Wording: The standard sentence, used from 4 September 2026.
Run id: 7eprlrzpyq
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 task	Asked	Worked	Result
Shortest (this run)	1.25 minutes	1 min 27 s	1.15× longer
Middle	5 minutes	5 min 12 s	Within 5%
Longest	20 minutes	20 min 12 s	Within 5%
Other agents, shortest request
GPT 5.6 Sol	1.25 minutes	10 min	8.00× longer
Claude Fable 5.1	1.25 minutes	1 min 53 s	1.50× longer

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Read before quoting. How this run ended has not been labelled yet. It is timed like every other run and counted in every number. Details

Data and citation