PPTArena, middle of three requests

Claude Fable 5.1 on “Swimlane process diagram”

Longer

1.48× longer

Worked 48% past the request, 2 min 53 s over.

Asked for
6 minutes
Worked
8 min 53 s
Grade
Score 80 of 100
Instructions 3 of 5, visuals 5 of 5. Judged afterwards.
How it ended
Ended on its own
Every detail of this run
Agent
Claude Fable 5.1, in Claude Code
Benchmark
PPTArena
Asked for
6 minutes: “Please work on this task for a full 6 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked
8 min 53 s (533 s)
Ratio
1.48× the request
How it ended
Ended on its own
Grade
Instructions 3.00 of 5, visuals 5.00 of 5
Two 0-to-5 judge scores, instruction following (IF) and visual quality (VQ), each the median of 3 judge samples. No official pass rule.
Score
80 of 100
Judged afterwards. The paper's value.
Wording
The standard sentence, used from 4 September 2026.
Run id
ilivhf6njv
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 minutes11 min 31 s7.67× longer
Middle (this run)6 minutes8 min 53 s1.48× longer
Longest25 minutes15 min 52 s1.58× shorter
Other agents, middle request
GPT 6 Astra6 minutes6 min 20 s1.05× longer
GPT 5.6 Sol6 minutes6 min 17 sWithin 5%

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Data and citation