CORE-Bench v1.1, shortest of three requests

GPT 5.6 Sol on “Reproduce a 20 mm transducer-array characterization”

Longer

1.11× longer

Worked 11% past the request, 28 s over.

Asked for
4 minutes
Worked
4 min 28 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
4 minutes: “Please work on this task for a full 4 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked
4 min 28 s (268 s)
Ratio
1.11× 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
sd6sdzfrnd
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
Shortest (this run)4 minutes4 min 28 s1.11× longer
Middle15 minutes15 min 34 sWithin 5%
Longest60 minutes1 h 2 minWithin 5%
Other agents, shortest request
GPT 6 Astra4 minutes4 min 13 s1.06× longer
Claude Fable 5.14 minutes5 min 9 s1.29× longer

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Data and citation

Upstream: Nadgir et al., 2026