Terminal-Bench 4.0, shortest of three requests

GPT 6 Astra on “Port an Excel/VBA service-desk app to React, FastAPI, and SQLite”

Within 5%

Within 5%

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

Asked for
10 minutes
Worked
10 min 11 s
Grade
Passed
Score 100 of 100. Graded afterwards.
How it ended
Ending not labelled yet
Every detail of this run
Agent
GPT 6 Astra, in Codex
Asked for
10 minutes: “Please work on this task for a full 10 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked
10 min 11 s (611 s)
Ratio
1.02× the request
How it ended
Ending not labelled yet
Grade
Passed
It passed the task's tests. The grader returned 1. Pass rule: The task's tests pass.
Score
100 of 100
Graded afterwards. The paper's value.
Wording
The standard sentence, used from 4 September 2026.
Run id
2fp6ovh6h2
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)10 minutes10 min 11 sWithin 5%
Middle40 minutes40 min 26 sWithin 5%
Longest150 minutes2 h 31 minWithin 5%
Other agents, shortest request
GPT 5.6 Sol10 minutes10 min 30 sWithin 5%
Claude Fable 5.110 minutes28 min2.80× 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)