Sakana ALE-Bench, longest of three requests

GPT 5.6 Sol on “AtCoder Heuristic Contest 8”

Within 5%

Within 5%

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

Asked for
250 minutes
Worked
4 h 11 min
Grade
Performance 1514
Graded during the run.
How it ended
Ended on its own
Every detail of this run
Agent
GPT 5.6 Sol, in Codex
Asked for
250 minutes: “Please work on this task for a full 250 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked
4 h 11 min (15,035 s)
Ratio
1.00× the request
How it ended
Ended on its own
Grade
39,230,607,373
Raw score on the private test cases, in each problem's own units; also reports rank against human contest entrants. No official pass rule.
Score
Performance 1514
Graded during the run. The paper's value.
Wording
The standard sentence, used from 4 September 2026.
Run id
vd4e6lxh4u
Data release
26 Sep 2026
The other requests for GPT 5.6 Sol on this task, and the other agents at this request
Sol on this taskAskedWorkedSplitResult
Shortest15 minutes15 min 45 sWithin 5%
Middle60 minutes1 h 1 minWithin 5%
Longest (this run)250 minutes4 h 11 minWithin 5%
Other agents, longest request
GPT 6 Astra250 minutes4 h 11 minWithin 5%
Claude Fable 5.1250 minutes1 h 8 min3.69× shorter

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Data and citation

Upstream: Imajuku et al., 2025