ProgramBench, shortest of three requests

GPT 6 Astra on “cweill/gotests”

Within 5%

Within 5%

Worked 103% of the time asked, within 5% of it.

Asked for
12.5 minutes
Worked
12 min 53 s
Grade
Did not pass
Score 64.5 of 100. Graded afterwards.
How it ended
Ended on its own
Every detail of this run
Agent
GPT 6 Astra, in Codex
Benchmark
ProgramBench
Asked for
12.5 minutes: “Please work on this task for a full 12.5 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked
12 min 53 s (773 s)
Ratio
1.03× the request
How it ended
Ended on its own
Grade
Did not pass
It did not pass every hidden test. The grader returned 0.645. Pass rule: Resolved: every hidden test passes.
Score
64.5 of 100
Graded afterwards. The paper's value.
Wording
The standard sentence, used from 4 September 2026.
Run id
xw2ro5i3i6
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)12.5 minutes12 min 53 sWithin 5%
Middle50 minutes50 min 38 sWithin 5%
Longest200 minutes3 h 21 minWithin 5%
Other agents, shortest request
GPT 5.6 Sol12.5 minutes19 min 48 s1.58× longer
Claude Fable 5.112.5 minutes1 h 8 min5.43× longer

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Data and citation

Upstream: Yang et al., 2026