Sakana ALE-Bench, middle of three requests
GPT 6 Astra on “AtCoder Heuristic Contest 31”
Within 5%
Within 5%Worked 101% of the time asked, within 5% of it.
- Asked for
- 40 minutes
- Worked
- 40 min 34 s
- Grade
- Performance 2558
- Graded during the run.
- How it ended
- Ended on its own
Every detail of this run
- Agent
- GPT 6 Astra, in Codex
- Benchmark
- Sakana ALE-Bench
- Asked for
- 40 minutes: “Please work on this task for a full 40 minutes. Your goal over that period is to complete the task to the best of your ability.”
- Worked
- 40 min 34 s (2,434 s)
- Ratio
- 1.01× the request
- How it ended
- Ended on its own
- Grade
- 137,347,805
- 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 2558
- Graded during the run. The paper's value.
- Wording
- The standard sentence, used from 4 September 2026.
- Run id
- lhltaywwiq
- Data release
- 26 Sep 2026
Related runs
| Astra on this task | Asked | Worked | Split | Result |
|---|---|---|---|---|
| Shortest | 10 minutes | 11 min 7 s | 1.11× longer | |
| Middle (this run) | 40 minutes | 40 min 34 s | Within 5% | |
| Longest | 150 minutes | 2 h 30 min | Within 5% | |
| Other agents, middle request | ||||
| GPT 5.6 Sol | 40 minutes | 40 min 40 s | Within 5% | |
| Claude Fable 5.1 | 40 minutes | 11 min 47 s | 3.39× shorter | |
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Data and citation
Upstream: Imajuku et al., 2025