AppWorld, shortest of three requests

Claude Fable 5.1 on “Export every playlist song to a CSV and email the backup”

Longer

1.59× longer

Worked 59% past the request, 1 min 29 s over.

Asked for
2.5 minutes
Worked
3 min 59 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
AppWorld
Asked for
2.5 minutes: “Please work on this task for a full 2.5 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked
3 min 59 s (239 s)
Ratio
1.59× the request
How it ended
Ended on its own
Grade
Passed
It passed every final-state test. The grader returned 1. Pass rule: Every final-state test passes.
Score
100 of 100
Graded during the run. The paper's value.
Wording
The standard sentence, used from 4 September 2026.
Run id
6glix2jcdi
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)2.5 minutes3 min 59 s1.59× longer
Middle10 minutes3 min 48 s2.64× shorter
Longest40 minutes3 min 19 s12.04× shorter
Other agents, shortest request
GPT 6 Astra2.5 minutes3 min 1 s1.21× longer
GPT 5.6 Sol2.5 minutes2 min 19 s1.08× shorter

See it on the chart. Transcripts are not published yet.

Data and citation

Upstream: Trivedi et al., 2024 (ACL)