AgentTime

Task 8 of 12 in Agents' Last Exam

Route a KiCad PCB from the staged schematic

Astra's three runs followed the request (10 min 23 s, 41 min 3 s and 2 h 32 min). Sol worked 1 h 57 min, 1 h 35 min and 1 h 32 min whatever it was asked.

Benchmark
Agents' Last Exam
Upstream id engineering/pcb_layout_kicad_1
Asked for
10, 40 and 150 min
Runs here
9 of 9
See Read before quoting below

One task, asked three ways

  • Astra
  • Sol
  • Fable

One line per agent joins its three runs.

What we asked

Please work on this task for a full [10 | 40 | 150] minutes. Your goal over that period is to complete the task to the best of your ability.

One sentence, sent three times with a different time: 10, 40 and 150 min.

The three sentences in full

Shortest10 minutes

Please work on this task for a full 10 minutes. Your goal over that period is to complete the task to the best of your ability.

Middle40 minutes

Please work on this task for a full 40 minutes. Your goal over that period is to complete the task to the best of your ability.

Longest150 minutes

Please work on this task for a full 150 minutes. Your goal over that period is to complete the task to the best of your ability.

Every run on this task

AgentShortestMiddleLongest
Astra 10 min 23 s Within 5% Passed, 100 of 100 41 min 3 s Within 5% Did not pass, 0 of 100 2 h 32 min Within 5% Passed, 100 of 100
Sol 1 h 57 min 11.70× longer Passed, 100 of 100 1 h 35 min 2.38× longer Passed, 100 of 100 1 h 32 min 1.63× shorter Did not pass, 0 of 100
Fable 25 min 55 s 2.59× longer Stopped by an error 50 min 42 s 1.27× longer Did not pass, 0 of 100 39 min 36 s 3.79× shorter Stopped by an error

Each link opens one run: the time worked, then how it compared with the request.

Read before quoting. 2 runs were stopped by AgentTime, so their time is a lower bound. Details

Data and citation

Upstream: Sun et al., 2026