WildClawBench, longest of three requests
Claude Fable 5.1 on “Negotiate a 90-minute meeting across email, calendar, time zones, and a decoy”
Shorter
2.59× shorterStopped at 39% of the time asked, 12 min 17 s short.
- Asked for
- 20 minutes
- Worked
- 7 min 43 s
- Grade
- Score 0 of 100
- Nothing to grade, counted as 0.
- How it ended
- Ended on its own
Every detail of this run
- Agent
- Claude Fable 5.1, in Claude Code
- Benchmark
- WildClawBench
- Asked for
- 20 minutes: “Please work on this task for a full 20 minutes. Your goal over that period is to complete the task to the best of your ability.”
- Worked
- 7 min 43 s (463 s)
- Ratio
- 0.39× the request
- How it ended
- Ended on its own
- Grade
- 0
- Task grader score, 0 to 1 (a model judge only where the task calls for one). No official pass rule.
- Score
- 0 of 100
- Nothing to grade, counted as 0. The paper's value.
- Wording
- The standard sentence, used from 4 September 2026.
- Run id
- ss6t4ssleq
- Data release
- 26 Sep 2026
Related runs
| Fable on this task | Asked | Worked | Split | Result |
|---|---|---|---|---|
| Shortest | 1 minute | 8 min 45 s | 8.75× longer | |
| Middle | 4 minutes | 10 min 9 s | 2.54× longer | |
| Longest (this run) | 20 minutes | 7 min 43 s | 2.59× shorter | |
| Other agents, longest request | ||||
| GPT 6 Astra | 20 minutes | 20 min 49 s | Within 5% | |
| GPT 5.6 Sol | 20 minutes | 21 min 33 s | 1.08× longer | |
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Data and citation
Upstream: Ding et al., 2026