CORE-Bench v1.1, shortest of three requests

GPT 5.6 Sol on “Reproduce a rockshelter chronology and archaeological materials analysis”

Longer

1.28× longer

Worked 28% past the request, 2 min 48 s over.

Asked for
10 minutes
Worked
12 min 48 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
10 minutes: “Please work on this task for a full 10 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked
12 min 48 s (768 s)
Ratio
1.28× 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
xe6hxbbdkl
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)10 minutes12 min 48 s1.28× longer
Middle40 minutes40 min 31 sWithin 5%
Longest150 minutes15 min 24 s9.74× shorter
Other agents, shortest request
GPT 6 Astra10 minutes10 min 20 sWithin 5%
Claude Fable 5.110 minutes15 min 47 s1.58× longer

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Data and citation

Upstream: Nadgir et al., 2026