DeepSWE v1.1, middle of three requests

Claude Fable 5.1 on “Preserve structure needed by stylesheet selectors in OXVG”

Longer

2.22× longer

Worked 122% past the request, 36 min 30 s over.

Asked for
30 minutes
Worked
1 h 7 min
Grade
Did not pass
Score 0 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
DeepSWE v1.1
Asked for
30 minutes: “Please work on this task for a full 30 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked
1 h 7 min (3,990 s)
Ratio
2.22× the request
How it ended
Ended on its own
Grade
Did not pass
It did not pass its hidden tests. The grader returned 0. Pass rule: The hidden tests pass.
Score
0 of 100
Graded during the run. The paper's value.
Wording
The standard sentence, used from 4 September 2026.
Run id
idxefpvn2j
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
Shortest8 minutes38 min4.75× longer
Middle (this run)30 minutes1 h 7 min2.22× longer
Longest125 minutes45 min 38 s2.74× shorter
Other agents, middle request
GPT 6 Astra30 minutes39 min 48 s1.33× longer
GPT 5.6 Sol30 minutes30 min 46 sWithin 5%

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Data and citation

Upstream: Huang et al., 2026