AppWorld, shortest of three requests

Claude Fable 5.1 on “Build a recruiting CSV and archive each candidate’s attachments”

Longer

1.65× longer

Worked 65% past the request, 58 s over.

Asked

Worked

Safety cutoff 50 min, off the scale

Every detail of this run

Agent: Claude Fable 5.1, in Claude Code
Benchmark: AppWorld
Task: Build a recruiting CSV and archive each candidate’s attachments
Asked for: 1.5 minutes: “Please work on this task for a full 1.5 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked: 2 min 28 s (148 s)
Ratio: 1.65× 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 during the run. The paper's value.
Wording: The standard sentence, used from 4 September 2026.
Run id: nedn7hgmbr
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 task	Asked	Worked	Result
Shortest (this run)	1.5 minutes	2 min 28 s	1.65× longer
Middle	6 minutes	5 min 11 s	1.16× shorter
Longest	25 minutes	9 min 47 s	2.55× shorter
Other agents, shortest request
GPT 6 Astra	1.5 minutes	1 min 50 s	1.22× longer
GPT 5.6 Sol	1.5 minutes	2 min 10 s	1.44× longer

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