AssistantBench, longest of three requests

GPT 5.6 Sol on “AssistantBench validation task 6”

Shorter

1.59× shorter

Stopped at 63% of the time asked, 7 min 25 s short.

Asked for
20 minutes
Worked
12 min 35 s
Grade
Did not pass
Score 3.8 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
12 min 35 s (755 s)
Ratio
0.63× the request
How it ended
Ended on its own
Grade
Did not pass
It did not match the reference answer exactly. The grader returned 0.038. Pass rule: Exact match with the reference answer.
Score
3.8 of 100
Graded afterwards. The paper's value.
Wording
The standard sentence, used from 4 September 2026.
Run id
5kheimwcu6
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 minutes7 min 54 s6.31× longer
Middle5 minutes3 min 47 s1.32× shorter
Longest (this run)20 minutes12 min 35 s1.59× shorter
Other agents, longest request
GPT 6 Astra20 minutes18 min 52 s1.06× shorter
Claude Fable 5.120 minutes40 min2.00× longer

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Data and citation

Upstream: Yoran et al., 2024 (EMNLP)