TUA-Bench, longest of three requests

GPT 5.6 Sol on “Place heater for sensors”

Within 5%

Within 5%

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

Asked for
60 minutes
Worked
1 h 1 min
Grade
Passed
Score 100 of 100. Graded during the run.
How it ended
Ended on its own
Every detail of this run
Agent
GPT 5.6 Sol, in Codex
Benchmark
TUA-Bench
Asked for
60 minutes: “Please work on this task for a full 60 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked
1 h 1 min (3,646 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
qlls4n4noh
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 taskAskedWorkedSplitResult
Shortest4 minutes8 min 46 s2.19× longer
Middle15 minutes9 min 34 s1.57× shorter
Longest (this run)60 minutes1 h 1 minWithin 5%
Other agents, longest request
GPT 6 Astra60 minutes1 hWithin 5%
Claude Fable 5.160 minutes26 min 57 s2.23× shorter
Muse Spark 1.360 minutes31 min 13 s1.92× shorter

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

Data and citation

Upstream: Chen et al., 2026