AssistantBench, longest of three requests

GPT 6 Astra on “AssistantBench validation task 15”

Within 5%

Within 5%

Worked 102% of the time asked, within 5% of it.

Asked for
20 minutes
Worked
20 min 21 s
Grade
Did not pass
Score 7.8 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
20 min 21 s (1,221 s)
Ratio
1.02× the request
How it ended
Ended on its own
Grade
Did not pass
It did not match the reference answer exactly. The grader returned 0.078. Pass rule: Exact match with the reference answer.
Score
7.8 of 100
Graded afterwards. The paper's value.
Wording
The standard sentence, used from 4 September 2026.
Run id
ukv7japhtv
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 49 s1.45× longer
Middle5 minutes5 min 39 s1.13× longer
Longest (this run)20 minutes20 min 21 sWithin 5%
Other agents, longest request
GPT 5.6 Sol20 minutes18 min 43 s1.07× shorter
Claude Fable 5.120 minutes10 min 57 s1.83× shorter

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

Data and citation

Upstream: Yoran et al., 2024 (EMNLP)