CORE-Bench v1.1, longest of three requests

GPT 5.6 Sol on “Run a continuous-time intelligent-reflecting-surface propagation model”

Shorter

3.54× shorter

Stopped at 28% of the time asked, 43 min 4 s short.

Asked for
60 minutes
Worked
16 min 56 s
Grade
Did not pass
Score 0 of 100. Graded afterwards.
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
16 min 56 s (1,016 s)
Ratio
0.28× 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 afterwards. The paper's value.
Wording
The standard sentence, used from 4 September 2026.
Run id
5pbgf6kajo
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 minutes14 min 17 s3.57× longer
Middle15 minutes15 min 32 sWithin 5%
Longest (this run)60 minutes16 min 56 s3.54× shorter
Other agents, longest request
GPT 6 Astra60 minutes1 h 1 minWithin 5%
Claude Fable 5.160 minutes29 min 25 s2.04× shorter

See it on the chart. Transcripts are not published yet.

Data and citation

Upstream: Nadgir et al., 2026