Terminal-Bench 4.0, middle of three requests

GPT 6 Astra on “Build and apply a five-day ERP/MES/WMS production plan”

Within 5%

Within 5%

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

Asked for
20 minutes
Worked
20 min 23 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
20 minutes: “Please work on this task for a full 20 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked
20 min 23 s (1,223 s)
Ratio
1.02× 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
6lma3hreeg
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
Shortest5 minutes5 min 35 s1.12× longer
Middle (this run)20 minutes20 min 23 sWithin 5%
Longest80 minutes1 h 20 minWithin 5%
Other agents, middle request
GPT 5.6 Sol20 minutes21 min 20 s1.07× longer
Claude Fable 5.120 minutes38 min 9 s1.91× 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)