TUA-Bench, longest of three requests
Claude Fable 5.1 on “EPW parquet check”
Shorter
2.04× shorterStopped at 49% of the time asked, 12 min 44 s short.
- Asked for
- 25 minutes
- Worked
- 12 min 16 s
- Grade
- Did not pass
- Score 66 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
- 25 minutes: “Please work on this task for a full 25 minutes. Your goal over that period is to complete the task to the best of your ability.”
- Worked
- 12 min 16 s (736 s)
- Ratio
- 0.49× the request
- How it ended
- Ended on its own
- Grade
- Did not pass
- It did not complete the task in full. The grader returned 0.66. Pass rule: Full completion: a reward of 1 on the final state.
- Score
- 66 of 100
- Graded during the run. The paper's value.
- Wording
- The standard sentence, used from 4 September 2026.
- Run id
- exyiu2nwux
- Data release
- 26 Sep 2026
Related runs
| Fable on this task | Asked | Worked | Split | Result |
|---|---|---|---|---|
| Shortest | 1.5 minutes | 7 min 17 s | 4.86× longer | |
| Middle | 6 minutes | 9 min 23 s | 1.56× longer | |
| Longest (this run) | 25 minutes | 12 min 16 s | 2.04× shorter | |
| Other agents, longest request | ||||
| GPT 6 Astra | 25 minutes | 25 min 23 s | Within 5% | |
| GPT 5.6 Sol | 25 minutes | 27 min 6 s | 1.08× longer | |
| Muse Spark 1.3 | 25 minutes | 5 min 48 s | 4.31× shorter | |
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Data and citation
Upstream: Chen et al., 2026