TUA-Bench, longest of three requests

GPT 6 Astra on “Daily email report”

Within 5%

Within 5%

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

Asked for
25 minutes
Worked
25 min 15 s
Grade
Passed
Score 100 of 100. Graded during the run.
How it ended
Ended on its own
Every detail of this run
Agent
GPT 6 Astra, in Codex
Benchmark
TUA-Bench
Asked for
25 minutes: “Please work on this task for a full 25 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked
25 min 15 s (1,515 s)
Ratio
1.01× the request
How it ended
Ended on its own
Grade
Passed
It completed the task in full. The grader returned 1. Pass rule: Full completion: a reward of 1 on the final state.
Score
100 of 100
Graded during the run. The paper's value.
Wording
The standard sentence, used from 4 September 2026.
Run id
e6zexdmd5i
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
Shortest1.5 minutes1 min 43 s1.15× longer
Middle6 minutes6 min 9 sWithin 5%
Longest (this run)25 minutes25 min 15 sWithin 5%
Other agents, longest request
GPT 5.6 Sol25 minutes25 min 40 sWithin 5%
Claude Fable 5.125 minutes2 min 9 s11.67× shorter
Muse Spark 1.325 minutes2 min 10 s11.54× shorter

See it on the chart. Transcripts are not published yet.

Data and citation

Upstream: Chen et al., 2026