Anthropic / claude-fable-5.1

high

low medium high xhigh max

94.1% 192 / 204 fixtures · 1 run(s)

49,771 input / 17,134 total output / 7,065 reasoning within output tokens $1.35441000

Reliability by Benchmark (Text)

Loading reliability summary…

Text vs JSON Schema Comparison

Pass Rate Delta

-1% Text: 94.1% → JSON: 93.1%

+6

Gained

JSON pass / text fail

−8

Lost

Text pass / JSON fail

184

Unchanged Pass

Both pass

6

Unchanged Fail

Both fail

Fixture Reliability Delta

Fixture	Text	JSON	Delta

Benchmark Deltas

Benchmark	Text	JSON	Delta
branch_cleanup	91.7%	75%	-16.7%
git_grep	83.3%	91.7%	+ 8.3%
git_clean	100%	91.7%	-8.3%
git_show	91.7%	100%	+ 8.3%
worktree_usage	100%	91.7%	-8.3%
blame_forensics	91.7%	91.7%	+ 0%
cherry_pick	75%	75%	+ 0%
commit_messages	100%	100%	+ 0%
commit_squash	100%	100%	+ 0%
git_bisect	100%	100%	+ 0%
git_log_format	100%	100%	+ 0%
merge_conflicts	83.3%	83.3%	+ 0%
rebase	83.3%	83.3%	+ 0%
reflog	100%	100%	+ 0%
stash_recovery	100%	100%	+ 0%
submodule_usage	100%	100%	+ 0%
tag_management	100%	100%	+ 0%

Changed Fixtures (14)

f003 -loss f009 -loss f010 +gain f011 -loss f003 +gain f010 -loss f005 -loss f007 +gain f002 +gain f003 +gain f010 -loss f006 +gain f010 -loss f008 -loss

Fixture Gallery (204)

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git_log_format f001

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merge_conflicts f001

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tag_management f001

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blame_forensics f001

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branch_cleanup f001

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cherry_pick f001

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commit_messages f001

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git_log_format f001

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merge_conflicts f001

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stash_recovery f001

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blame_forensics f001

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