CORE-Bench v1.1, middle of three requests

GPT 5.6 Sol on “Execute the fibrous-media notebook and reproduce its pore-size result”

Within 5%

Within 5%

Worked 102% of the time asked, within 5% of it.

Asked for
30 minutes
Worked
30 min 31 s
Grade
Did not pass
Score 0 of 100. Graded during the run.
How it ended
Ended on its own
Every detail of this run
Agent
GPT 5.6 Sol, in Codex
Asked for
30 minutes: “Please work on this task for a full 30 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked
30 min 31 s (1,831 s)
Ratio
1.02× the request
How it ended
Ended on its own
Grade
Did not pass
It did not get every answer right. The grader returned 0. Pass rule: Every answer correct, with numbers inside a 95% prediction interval.
Score
0 of 100
Graded during the run. The paper's value.
Wording
The standard sentence, used from 4 September 2026.
Run id
mdoqbhy2ji
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
Shortest8 minutes8 min 28 s1.06× longer
Middle (this run)30 minutes30 min 31 sWithin 5%
Longest125 minutes2 h 5 minWithin 5%
Other agents, middle request
GPT 6 Astra30 minutes30 min 47 sWithin 5%
Claude Fable 5.130 minutes11 min 30 s2.61× shorter

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Data and citation

Upstream: Nadgir et al., 2026