Terminal-Bench 4.0, longest of three requests

GPT 6 Astra on “Rebuild a retired production risk scorer from black-box behavior”

Within 5%

Within 5%

Worked 101% of the time asked, within 5% of it.

Asked for
100 minutes
Worked
1 h 41 min
Grade
Did not pass
Score 0 of 100. Graded afterwards.
How it ended
Ended on its own
Every detail of this run
Agent
GPT 6 Astra, in Codex
Asked for
100 minutes: “Please work on this task for a full 100 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked
1 h 41 min (6,039 s)
Ratio
1.01× the request
How it ended
Ended on its own
Grade
Did not pass
It did not pass the task's tests. The grader returned 0. Pass rule: The task's tests pass.
Score
0 of 100
Graded afterwards. The paper's value.
Wording
The standard sentence, used from 4 September 2026.
Run id
wrgeioo36x
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
Shortest6 minutes6 min 12 sWithin 5%
Middle25 minutes25 min 15 sWithin 5%
Longest (this run)100 minutes1 h 41 minWithin 5%
Other agents, longest request
GPT 5.6 Sol100 minutes1 h 41 minWithin 5%
Claude Fable 5.1100 minutes22 min 46 s4.39× shorter

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

Data and citation

Upstream: Merrill et al., 2026 (ICLR)