Terminal-Bench 4.0, longest of three requests

GPT 5.6 Sol on “Repair a React lead form and its auditable CRM submission pipeline”

Within 5%

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

Asked

Worked

Safety cutoff 3 h 20 min, off the scale

Every detail of this run

Agent: GPT 5.6 Sol, in Codex
Benchmark: Terminal-Bench 4.0
Task: Repair a React lead form and its auditable CRM submission pipeline
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 (6,044 s)
Ratio: 1.01× 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: hfdxsfbeu7
Data release: 26 Sep 2026

The other requests for GPT 5.6 Sol on this task, and the other agents at this request
Sol on this task	Asked	Worked	Result
Shortest	6 minutes	10 min 40 s	1.78× longer
Middle	25 minutes	21 min 54 s	1.14× shorter
Longest (this run)	100 minutes	1 h 41 min	Within 5%
Other agents, longest request
GPT 6 Astra	100 minutes	1 h 40 min	Within 5%
Claude Fable 5.1	100 minutes	28 min 50 s	3.47× shorter

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