AssistantBench, longest of three requests

GPT 6 Astra on “AssistantBench validation task 12”

Within 5%

Within 5%

Worked 105% of the time asked, within 5% of it.

Asked for
20 minutes
Worked
20 min 55 s
Grade
Did not pass
Score 1.1 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 55 s (1,255 s)
Ratio
1.05× the request
How it ended
Ended on its own
Grade
Did not pass
It did not match the reference answer exactly. The grader returned 0.011. Pass rule: Exact match with the reference answer.
Score
1.1 of 100
Graded afterwards. The paper's value.
Wording
The standard sentence, used from 4 September 2026.
Run id
aiaexcvlr2
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 39 s1.33× longer
Middle5 minutes6 min 32 s1.31× longer
Longest (this run)20 minutes20 min 55 sWithin 5%
Other agents, longest request
GPT 5.6 Sol20 minutes19 min 54 sWithin 5%
Claude Fable 5.120 minutes15 min 42 s1.27× shorter

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Data and citation

Upstream: Yoran et al., 2024 (EMNLP)