AssistantBench, longest of three requests

GPT 6 Astra on “AssistantBench validation task 1”

Shorter

1.06× shorter

Stopped at 94% of the time asked, 1 min 12 s short.

Asked for
20 minutes
Worked
18 min 48 s
Grade
Did not pass
Score 3.2 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 48 s (1,128 s)
Ratio
0.94× the request
How it ended
Ended on its own
Grade
Did not pass
It did not match the reference answer exactly. The grader returned 0.032. Pass rule: Exact match with the reference answer.
Score
3.2 of 100
Graded afterwards. The paper's value.
Wording
The standard sentence, used from 4 September 2026.
Run id
hxcje2yorh
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 46 s1.42× longer
Middle5 minutes5 min 44 s1.15× longer
Longest (this run)20 minutes18 min 48 s1.06× shorter
Other agents, longest request
GPT 5.6 Sol20 minutes17 min 5 s1.17× shorter
Claude Fable 5.120 minutes15 min 5 s1.33× shorter

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

Data and citation

Upstream: Yoran et al., 2024 (EMNLP)