TUA-Bench, middle of three requests
Claude Fable 5.1 on “Extract gym auditorium”
Longer
4.19× longerWorked 319% past the request, 15 min 57 s over.
- Asked for
- 5 minutes
- Worked
- 20 min 57 s
- Grade
- Passed
- Score 100 of 100. 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
- TUA-Bench
- Asked for
- 5 minutes: “Please work on this task for a full 5 minutes. Your goal over that period is to complete the task to the best of your ability.”
- Worked
- 20 min 57 s (1,257 s)
- Ratio
- 4.19× the request
- How it ended
- Ended on its own
- Grade
- Passed
- It completed the task in full. The grader returned 1. Pass rule: Full completion: a reward of 1 on the final state.
- Score
- 100 of 100
- Graded during the run. The paper's value.
- Wording
- The standard sentence, used from 4 September 2026.
- Run id
- xbpmcsl6au
- Data release
- 26 Sep 2026
Related runs
| Fable on this task | Asked | Worked | Split | Result |
|---|---|---|---|---|
| Shortest | 1.25 minutes | 21 min 32 s | 17.23× longer | |
| Middle (this run) | 5 minutes | 20 min 57 s | 4.19× longer | |
| Longest | 20 minutes | 22 min 12 s | 1.11× longer | |
| Other agents, middle request | ||||
| GPT 6 Astra | 5 minutes | 6 min 7 s | 1.22× longer | |
| GPT 5.6 Sol | 5 minutes | 6 min 20 s | 1.27× longer | |
| Muse Spark 1.3 | 5 minutes | 8 min 31 s | 1.70× longer | |
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Data and citation
Upstream: Chen et al., 2026