CORE-Bench v1.1, longest of three requests

GPT 5.6 Sol on “Execute relative-entropy causal-influence notebooks in parallel”

Within 5%

Within 5%

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

Asked for
60 minutes
Worked
1 h 1 min
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
60 minutes: “Please work on this task for a full 60 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked
1 h 1 min (3,669 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
kim4x7cjlk
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
Shortest4 minutes25 min 16 s6.31× longer
Middle15 minutes17 min 15 s1.15× longer
Longest (this run)60 minutes1 h 1 minWithin 5%
Other agents, longest request
GPT 6 Astra60 minutes1 h 1 minWithin 5%
Claude Fable 5.160 minutes11 min 39 s5.15× shorter

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Data and citation

Upstream: Nadgir et al., 2026