Agents' Last Exam, longest of three requests

GPT 5.6 Sol on “Parse a fixed 100-filing SEC 10-K corpus”

Within 5%

Within 5%

Worked 101% of the time asked, within 5% of it.

Asked for
150 minutes
Worked
2 h 31 min
Grade
Did not pass
Score 67.3 of 100. Graded afterwards.
How it ended
Ended on its own
Every detail of this run
Agent
GPT 5.6 Sol, in Codex
Asked for
150 minutes: “Please work on this task for a full 150 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked
2 h 31 min (9,085 s)
Ratio
1.01× the request
How it ended
Ended on its own
Grade
Did not pass
It did not pass the task's checker in full. The grader returned 0.673. Pass rule: Full pass: a checker score of 1.
Score
67.3 of 100
Graded afterwards. The paper's value.
Wording
The standard sentence, used from 4 September 2026.
Run id
tnort24fix
Data release
26 Sep 2026
The other requests for GPT 5.6 Sol on this task, and the other agents at this request
Sol on this taskAskedWorkedSplitResult
Shortest10 minutes22 min 30 s2.25× longer
Middle40 minutes42 min 15 s1.06× longer
Longest (this run)150 minutes2 h 31 minWithin 5%
Other agents, longest request
GPT 6 Astra150 minutes2 h 32 minWithin 5%
Claude Fable 5.1150 minutes1 h 6 min2.28× shorter

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Data and citation

Upstream: Sun et al., 2026