WildClawBench, longest of three requests

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

Shorter

3.50× shorter

Stopped at 29% of the time asked, 17 min 52 s short.

Asked for
25 minutes
Worked
7 min 9 s
Grade
Score 74.4 of 100
Judged afterwards.
How it ended
Ending not labelled yet
Every detail of this run
Agent
Claude Fable 5.1, in Claude Code
Benchmark
WildClawBench
Asked for
25 minutes: “Please work on this task for a full 25 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked
7 min 9 s (429 s)
Ratio
0.29× the request
How it ended
Ending not labelled yet
Grade
0.744
Task grader score, 0 to 1 (a model judge only where the task calls for one). No official pass rule.
Score
74.4 of 100
Judged afterwards. The paper's value.
Wording
The standard sentence, used from 4 September 2026.
Run id
z2fcdy52ws
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
Shortest1.5 minutes5 min3.34× longer
Middle6 minutes5 min 51 sWithin 5%
Longest (this run)25 minutes7 min 9 s3.50× shorter
Other agents, longest request
GPT 6 Astra25 minutes25 min 20 sWithin 5%
GPT 5.6 Sol25 minutes26 min 6 sWithin 5%

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

Upstream: Ding et al., 2026