AppWorld, shortest of three requests

Claude Fable 5.1 on “Repack tonight’s Todoist plan around the available work schedule”

Longer

1.91× longer

Worked 91% past the request, 1 min 49 s over.

Asked for
2 minutes
Worked
3 min 49 s
Grade
Did not pass
Score 0 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
AppWorld
Asked for
2 minutes: “Please work on this task for a full 2 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked
3 min 49 s (229 s)
Ratio
1.91× the request
How it ended
Ended on its own
Grade
Did not pass
It did not pass every final-state test. The grader returned 0. Pass rule: Every final-state test passes.
Score
0 of 100
Graded afterwards. The paper's value.
Wording
The standard sentence, used from 4 September 2026.
Run id
7qfatj3tq4
Data release
26 Sep 2026
The other requests for Claude Fable 5.1 on this task, and the other agents at this request
Fable on this taskAskedWorkedSplitResult
Shortest (this run)2 minutes3 min 49 s1.91× longer
Middle8 minutes4 min 2 s1.98× shorter
Longest30 minutes4 min 58 s6.05× shorter
Other agents, shortest request
GPT 6 Astra2 minutes2 min 26 s1.21× longer
GPT 5.6 Sol2 minutes2 min 58 s1.48× longer

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Data and citation

Upstream: Trivedi et al., 2024 (ACL)