Sakana ALE-Bench, shortest of three requests

GPT 5.6 Sol on “AtCoder Heuristic Contest 39”

Longer

1.24× longer

Worked 24% past the request, 2 min 25 s over.

Asked for
10 minutes
Worked
12 min 25 s
Grade
Performance 2380
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
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
12 min 25 s (745 s)
Ratio
1.24× the request
How it ended
Ended on its own
Grade
484,328
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 2380
Graded during the run. The paper's value.
Wording
The standard sentence, used from 4 September 2026.
Run id
4lmjbumsaj
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
Shortest (this run)10 minutes12 min 25 s1.24× longer
Middle40 minutes40 min 31 sWithin 5%
Longest150 minutes2 h 32 minWithin 5%
Other agents, shortest request
GPT 6 Astra10 minutes10 min 21 sWithin 5%
Claude Fable 5.110 minutes6 min1.67× shorter

See it on the chart. Transcripts are not published yet.

Data and citation

Upstream: Imajuku et al., 2025