Sakana ALE-Bench, shortest of three requests
Claude Fable 5.1 on “AtCoder Heuristic Contest 7”
Within 5%
Within 5%Worked 101% of the time asked, within 5% of it.
- Asked for
- 10 minutes
- Worked
- 10 min 4 s
- Grade
- Performance 2747
- Graded during the run.
- How it ended
- Ended on its own
Every detail of this run
- Agent
- Claude Fable 5.1, in Claude Code
- Benchmark
- Sakana ALE-Bench
- Asked for
- 10 minutes: “Please work on this task for a full 10 minutes. Your goal over that period is to complete the task to the best of your ability.”
- Worked
- 10 min 4 s (604 s)
- Ratio
- 1.01× the request
- How it ended
- Ended on its own
- Grade
- 14,222,997,769
- 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 2747
- Graded during the run. The paper's value.
- Wording
- The standard sentence, used from 4 September 2026.
- Run id
- 7b3wpflv4c
- Data release
- 26 Sep 2026
Related runs
| Fable on this task | Asked | Worked | Split | Result |
|---|---|---|---|---|
| Shortest (this run) | 10 minutes | 10 min 4 s | Within 5% | |
| Middle | 40 minutes | 28 min 1 s | 1.43× shorter | |
| Longest | 150 minutes | 1 h 4 min | 2.36× shorter | |
| Other agents, shortest request | ||||
| GPT 6 Astra | 10 minutes | 10 min 10 s | Within 5% | |
| GPT 5.6 Sol | 10 minutes | 12 min 52 s | 1.29× longer | |
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Data and citation
Upstream: Imajuku et al., 2025