AssistantBench, longest of three requests

GPT 6 Astra on “AssistantBench validation task 13”

Shorter

1.07× shorter

Stopped at 93% of the time asked, 1 min 23 s short.

Asked for
20 minutes
Worked
18 min 37 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 6 Astra, 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
18 min 37 s (1,117 s)
Ratio
0.93× 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
skssynle6t
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
Shortest1.25 minutes1 min 32 s1.22× longer
Middle5 minutes7 min 5 s1.42× longer
Longest (this run)20 minutes18 min 37 s1.07× shorter
Other agents, longest request
GPT 5.6 Sol20 minutes4 min 15 s4.70× shorter
Claude Fable 5.120 minutes18 min 6 s1.11× shorter

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

Data and citation

Upstream: Yoran et al., 2024 (EMNLP)