WildClawBench, shortest of three requests

Claude Fable 5.1 on “Build a Chinese academic homepage from a resume and visual reference”

Longer

3.34× longer

Worked 234% past the request, 3 min 30 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: WildClawBench
Task: Build a Chinese academic homepage from a resume and visual reference
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: 5 min (300 s)
Ratio: 3.34× the request
How it ended: Ending not labelled yet
Grade: 0.718; Task grader score, 0 to 1 (a model judge only where the task calls for one). No official pass rule.
Score: 71.8 of 100; Judged afterwards. The paper's value.
Wording: The standard sentence, used from 4 September 2026.
Run id: yutw362wzo
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	5 min	3.34× longer
Middle	6 minutes	5 min 51 s	Within 5%
Longest	25 minutes	7 min 9 s	3.50× shorter
Other agents, shortest request
GPT 6 Astra	1.5 minutes	2 min 5 s	1.39× longer
GPT 5.6 Sol	1.5 minutes	4 min 10 s	2.78× longer

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

Read before quoting. How this run ended has not been labelled yet. It is timed like every other run and counted in every number. Details

Data and citation