WildClawBench, middle of three requests

Claude Fable 5.1 on “Solve and render a color Link-a-Pix puzzle, then identify the scene”

Shorter

2.58× shorter

Stopped at 39% of the time asked, 4 min 54 s short.

Asked

Worked

Safety cutoff 1 h, off the scale

Every detail of this run

Agent: Claude Fable 5.1, in Claude Code
Benchmark: WildClawBench
Task: Solve and render a color Link-a-Pix puzzle, then identify the scene
Asked for: 8 minutes: “Please work on this task for a full 8 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked: 3 min 6 s (186 s)
Ratio: 0.39× the request
How it ended: Ending not labelled yet
Grade: 0.95; Task grader score, 0 to 1 (a model judge only where the task calls for one). No official pass rule.
Score: 95 of 100; Judged afterwards. The paper's value.
Wording: The standard sentence, used from 4 September 2026.
Run id: u5imkskhjd
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	2 minutes	3 min 41 s	1.84× longer
Middle (this run)	8 minutes	3 min 6 s	2.58× shorter
Longest	30 minutes	4 min 9 s	7.22× shorter
Other agents, middle request
GPT 6 Astra	8 minutes	8 min 30 s	1.06× longer
GPT 5.6 Sol	8 minutes	8 min 32 s	1.07× 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