CORE-Bench v1.1, longest of three requests

GPT 6 Astra on “Reproduce article and script-availability results across linguistics”

Within 5%

Within 5%

Worked 100% of the time asked, within 5% of it.

Asked for
125 minutes
Worked
2 h 6 min
Grade
Passed
Score 100 of 100. Graded afterwards.
How it ended
Ended on its own
Every detail of this run
Agent
GPT 6 Astra, in Codex
Asked for
125 minutes: “Please work on this task for a full 125 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked
2 h 6 min (7,535 s)
Ratio
1.00× the request
How it ended
Ended on its own
Grade
Passed
It got every answer right. The grader returned 1. Pass rule: Every answer correct, with numbers inside a 95% prediction interval.
Score
100 of 100
Graded afterwards. The paper's value.
Wording
The standard sentence, used from 4 September 2026.
Run id
q6k7oaywmf
Data release
26 Sep 2026
The other requests for GPT 6 Astra on this task, and the other agents at this request
Astra on this taskAskedWorkedSplitResult
Shortest8 minutes8 min 24 sWithin 5%
Middle30 minutes30 min 42 sWithin 5%
Longest (this run)125 minutes2 h 6 minWithin 5%
Other agents, longest request
GPT 5.6 Sol125 minutes8 min 15 s15.14× shorter
Claude Fable 5.1125 minutes8 min 36 s14.54× shorter

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

Data and citation

Upstream: Nadgir et al., 2026