Sakana ALE-Bench, middle of three requests

GPT 6 Astra on “AtCoder Heuristic Contest 11”

Within 5%

Within 5%

Worked 101% of the time asked, within 5% of it.

Asked for
50 minutes
Worked
50 min 21 s
Grade
Performance 2893
Graded during the run.
How it ended
Ended on its own
Every detail of this run
Agent
GPT 6 Astra, in Codex
Asked for
50 minutes: “Please work on this task for a full 50 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked
50 min 21 s (3,021 s)
Ratio
1.01× the request
How it ended
Ended on its own
Grade
2,597,719,501
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 2893
Graded during the run. The paper's value.
Wording
The standard sentence, used from 4 September 2026.
Run id
a34hgoyx5e
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
Shortest12.5 minutes12 min 45 sWithin 5%
Middle (this run)50 minutes50 min 21 sWithin 5%
Longest200 minutes3 h 21 minWithin 5%
Other agents, middle request
GPT 5.6 Sol50 minutes50 min 27 sWithin 5%
Claude Fable 5.150 minutes21 min 11 s2.36× shorter

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Data and citation

Upstream: Imajuku et al., 2025