Terminal-Bench 4.0, shortest of three requests

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

Within 5%

Within 5%

Worked 103% of the time asked, within 5% of it.

Asked for
6 minutes
Worked
6 min 12 s
Grade
Did not pass
Score 0 of 100. Graded during the run.
How it ended
Ending not labelled yet
Every detail of this run
Agent
GPT 6 Astra, in Codex
Asked for
6 minutes: “Please work on this task for a full 6 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked
6 min 12 s (372 s)
Ratio
1.03× the request
How it ended
Ending not labelled yet
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 during the run. The paper's value.
Wording
The standard sentence, used from 4 September 2026.
Run id
z347zu5lfv
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
Shortest (this run)6 minutes6 min 12 sWithin 5%
Middle25 minutes25 min 15 sWithin 5%
Longest100 minutes1 h 41 minWithin 5%
Other agents, shortest request
GPT 5.6 Sol6 minutes14 min 1 s2.33× longer
Claude Fable 5.16 minutes19 min 44 s3.29× longer

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

Read before quoting. How this run ended has not been labelled yet. It is timed like every other run and counted in every number. Details

Data and citation

Upstream: Merrill et al., 2026 (ICLR)