AssistantBench, longest of three requests

GPT 5.6 Sol on “AssistantBench validation task 9”

Shorter

3.72× shorter

Stopped at 27% of the time asked, 14 min 38 s short.

Asked for
20 minutes
Worked
5 min 22 s
Grade
Did not pass
Score 0 of 100. Graded afterwards.
How it ended
Ended on its own
Every detail of this run
Agent
GPT 5.6 Sol, in Codex
Asked for
20 minutes: “Please work on this task for a full 20 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked
5 min 22 s (322 s)
Ratio
0.27× the request
How it ended
Ended on its own
Grade
Did not pass
It did not match the reference answer exactly. The grader returned 0. Pass rule: Exact match with the reference answer.
Score
0 of 100
Graded afterwards. The paper's value.
Wording
The standard sentence, used from 4 September 2026.
Run id
kcru34nwju
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
Shortest1.25 minutes3 min 8 s2.51× longer
Middle5 minutes2 min 12 s2.28× shorter
Longest (this run)20 minutes5 min 22 s3.72× shorter
Other agents, longest request
GPT 6 Astra20 minutes53 s22.77× shorter
Claude Fable 5.120 minutes1 min 29 s13.44× shorter

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

Data and citation

Upstream: Yoran et al., 2024 (EMNLP)