AssistantBench, longest of three requests

GPT 6 Astra on “AssistantBench validation task 16”

Shorter

4.12× shorter

Stopped at 24% of the time asked, 15 min 8 s short.

Asked for
20 minutes
Worked
4 min 52 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
4 min 52 s (292 s)
Ratio
0.24× 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
5alox7l6wk
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 minutes2 min 58 s2.38× longer
Middle5 minutes5 min 47 s1.16× longer
Longest (this run)20 minutes4 min 52 s4.12× shorter
Other agents, longest request
GPT 5.6 Sol20 minutes19 min 20 sWithin 5%
Claude Fable 5.120 minutes4 min 22 s4.58× shorter

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

Data and citation

Upstream: Yoran et al., 2024 (EMNLP)