Sakana ALE-Bench, longest of three requests

GPT 6 Astra on “AtCoder Heuristic Contest 9”

Within 5%

Within 5%

Worked 100% of the time asked, within 5% of it.

Asked for
150 minutes
Worked
2 h 31 min
Grade
Files not found
The files this run saved have not been found, so it has no grade.
How it ended
Ended on its own
Every detail of this run
Agent
GPT 6 Astra, in Codex
Asked for
150 minutes: “Please work on this task for a full 150 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked
2 h 31 min (9,037 s)
Ratio
1.00× the request
How it ended
Ended on its own
Grade
Files not found
The files this run saved have not been found, so it has no grade.
Wording
The standard sentence, used from 4 September 2026.
Run id
sxe72kgjkd
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
Shortest10 minutes10 min 10 sWithin 5%
Middle40 minutes40 min 28 sWithin 5%
Longest (this run)150 minutes2 h 31 minWithin 5%
Other agents, longest request
GPT 5.6 Sol150 minutes2 h 32 minWithin 5%
Claude Fable 5.1150 minutes1 h 22 min1.82× shorter

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Data and citation

Upstream: Imajuku et al., 2025