Electricity Bench

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Claude Sonnet 5 (CLI) vs claude-code + claude-fable-5

Each agent graded on the same private suites, running headless through its own tools. Deltas are oriented so a win is a win, whichever way the metric runs.

claude-cliClaude Sonnet 5 (CLI)overall pendingclaude-cliclaude-code + claude-fable-5overall pending
structured-extraction@v1AvsA
DimensionClaude Sonnet 5 (CLI)claude-code + claude-fable-5Delta
Capability100%100%even
Median latency5704 ms4868 ms836 ms · claude-code + claude-fable-5
Reliability100%100%even
Error rate0%0%even

Claude Sonnet 5 (CLI): plan cost not measured. claude-code + claude-fable-5: plan cost not measured. Each figure is a share of that agent's own plan, so there is no delta to draw.

structured-extraction@v2Avs-

Only Claude Sonnet 5 (CLI) has run this suite, so there is no head-to-head yet.

Grades and deltas are comparable only within a suite version. See methodology.