TUA-Bench, middle of three requests

GPT 6 Astra on “Place heater for sensors”

Within 5%

Within 5%

Worked 103% of the time asked, within 5% of it.

Asked for
15 minutes
Worked
15 min 29 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
15 minutes: “Please work on this task for a full 15 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked
15 min 29 s (929 s)
Ratio
1.03× 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
qwkt5g5ga4
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
Shortest4 minutes4 min 20 s1.08× longer
Middle (this run)15 minutes15 min 29 sWithin 5%
Longest60 minutes1 hWithin 5%
Other agents, middle request
GPT 5.6 Sol15 minutes9 min 34 s1.57× shorter
Claude Fable 5.115 minutes21 min 59 s1.47× longer

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

Data and citation

Upstream: Chen et al., 2026