Agents' Last Exam, shortest of three requests
Claude Fable 5.1 on “Compress a 3D Gaussian Splatting scene without losing quality”
Longer
10.94× longerWorked 994% past the request, 39 min 45 s over.
- Asked for
- 4 minutes
- Worked
- 43 min 45 s
- Grade
- Passed
- Score 100 of 100. Graded afterwards.
- How it ended
- Ended on its own
Every detail of this run
- Agent
- Claude Fable 5.1, in Claude Code
- Benchmark
- Agents' Last Exam
- Asked for
- 4 minutes: “Please work on this task for a full 4 minutes. Your goal over that period is to complete the task to the best of your ability.”
- Worked
- 43 min 45 s (2,625 s)
- Ratio
- 10.94× the request
- How it ended
- Ended on its own
- Grade
- Passed
- It passed the task's checker in full. The grader returned 1. Pass rule: Full pass: a checker score of 1.
- Score
- 100 of 100
- Graded afterwards. The paper's value.
- Wording
- The standard sentence, used from 4 September 2026.
- Run id
- vpjnuew7cy
- Data release
- 26 Sep 2026
Related runs
| Fable on this task | Asked | Worked | Split | Result |
|---|---|---|---|---|
| Shortest (this run) | 4 minutes | 43 min 45 s | 10.94× longer | |
| Middle | 15 minutes | 13 min 21 s | 1.12× shorter | |
| Longest | 60 minutes | 46 min 53 s | 1.28× shorter | |
| Other agents, shortest request | ||||
| GPT 6 Astra | 4 minutes | 6 min 39 s | 1.66× longer | |
| GPT 5.6 Sol | 4 minutes | 10 min 55 s | 2.73× longer | |
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Data and citation
Upstream: Sun et al., 2026