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Hbench

humaneval-plus@1.0 (unreviewed) on GPT-6 Luna

164 tasks, 1 attempt, open network. Updated 24 Oct 2026.

164 tasks from humaneval-plus@1.0 on ghcr.io. Nobody has reviewed this dataset, so a score here says nothing about the benchmark it's named after.

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Pick two harnesses to compare them task by task.

Codex 0.164.0 against Claude Code 2.1.309, task by task

Over the 164 tasks both ran, 1 attempt each

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Codex 0.164.0 minus Claude Code 2.1.309, pass rate

−4.3 points

95% interval −9.1 to 0.0

The interval includes zero, so the paired test can't tell the two apart.

Where the tasks landed

  • 4Only Codex 0.164.0 solved
  • 141Both solved
  • 11Only Claude Code 2.1.309 solved
  • 8Neither solved

Of 164 tasks, 4 only Codex 0.164.0 solved, 11 only Claude Code 2.1.309 solved, 141 both solved and 8 neither did.

Codex 0.164.0 and Claude Code 2.1.309, task by task
TaskRewardTokensTime
Codex 0.164.0Claude Code 2.1.309Codex 0.164.0Claude Code 2.1.309Codex 0.164.0Claude Code 2.1.309
humaneval-plus-1031039k20k14 s11 s
humaneval-plus-1040113k20k5 s10 s
humaneval-plus-1061039k20k11 s11 s
humaneval-plus-1130113k42k6 s29 s
humaneval-plus-1210139k20k10 s8 s
humaneval-plus-1380113k41k7 s22 s
humaneval-plus-1390113k20k5 s8 s
humaneval-plus-1520113k20k5 s7 s
humaneval-plus-1630140k31k14 s18 s
humaneval-plus-471039k65k12 s50 s
humaneval-plus-570113k20k5 s9 s
humaneval-plus-720113k20k6 s7 s
humaneval-plus-760140k42k13 s28 s
humaneval-plus-920113k20k6 s10 s
humaneval-plus-971039k20k11 s8 s