PaperBench, shortest of three requests

GPT 6 Astra on “Bridging Data Gaps”

Within 5%

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

Asked

Worked

Safety cutoff 6 h 40 min, off the scale

Asked for: 12.5 minutes
Worked: 12 min 39 s
Grade: Grading…; The run's output is saved, but grading it needs GPU time for the benchmark's judge or evaluation, which has not run yet.
How it ended: Ended on its own

Every detail of this run

Agent: GPT 6 Astra, in Codex
Benchmark: PaperBench
Task: Bridging Data Gaps
Asked for: 12.5 minutes: “Please work on this task for a full 12.5 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked: 12 min 39 s (759 s)
Ratio: 1.01× the request
How it ended: Ended on its own
Grade: Grading…; The run's output is saved, but grading it needs GPU time for the benchmark's judge or evaluation, which has not run yet.
Wording: The standard sentence, used from 4 September 2026.
Run id: vtq4645guk
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 task	Asked	Worked	Result
Shortest (this run)	12.5 minutes	12 min 39 s	Within 5%
Middle	50 minutes	50 min 38 s	Within 5%
Longest	200 minutes	3 h 21 min	Within 5%
Other agents, shortest request
GPT 5.6 Sol	12.5 minutes	6 min 11 s	2.02× shorter
Claude Fable 5.1	12.5 minutes	5 min 18 s	2.36× shorter

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Data and citation