Terminal-Bench 4.0, longest of three requests

GPT 6 Astra on “Repair batched LLM evaluation so it matches single-example semantics”

Within 5%

Within 5%

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

Asked for
125 minutes
Worked
2 h 5 min
Grade
Did not pass
Score 0 of 100. Graded afterwards.
How it ended
Ending not labelled yet
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 5 min (7,527 s)
Ratio
1.00× 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 afterwards. The paper's value.
Wording
The standard sentence, used from 4 September 2026.
Run id
wfj2wi6all
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 11 sWithin 5%
Middle30 minutes30 min 37 sWithin 5%
Longest (this run)125 minutes2 h 5 minWithin 5%
Other agents, longest request
GPT 5.6 Sol125 minutes2 h 6 minWithin 5%
Claude Fable 5.1125 minutes20 min 42 s6.04× shorter

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)