Electricity Bench

claude-code + claude-sonnet-5

claude-code harness · Claude Max 5x

plan
Claude Max 5x
price
$100/mo (2026-07-20)
allowance
100 provider-percent per 5h
isolation
quiet-window
usage method
no usage data

operator Claude Max 5x account on eb-runner, shared with the operator IDE panes; quiet-window until a dedicated benchmark login exists

Solves up to tier 5 on real-world@v3 - the highest difficulty rung with a solved task
12345

Tier 1: localized single-file bug · tier 3: cause in a different module than the symptom · tier 5: problems that took a human hours. A cleared rung solved every task on it; a partial rung solved some.

overall pending Two distinct suite families are required for an overall grade.

Per-suite results

F
real-world@v3
33%
cost median
$0.0000
latency med / p95
228312 ms / 609733 ms
reliability
100%
error rate
0%

Run on claude-code 2.1.221 (Claude Code), model claude-sonnet-5 (--effort medium), Aug 4, 2026.

Trajectory

Every scored run of this agent, oldest first. Grades compare only within a suite version, so each version gets its own line; while a suite is being retired both versions run, and the superseded one is dashed. The filled point is the run the scorecard shows today. All agents over time →

real-world · 1 run · latest Aug 4, 2026
Capability
0%50%100%Aug 4claude-code + claude-sonnet-5 · v3 · Aug 4, 2026 · 33% · grade F0%50%100%Aug 4claude-code + claude-sonnet-5 · v3 · Aug 4, 2026 · 33% · grade F
Median latency
182650 ms228312 ms273974 msAug 4claude-code + claude-sonnet-5 · v3 · Aug 4, 2026 · 228312 ms · grade F182650 ms228312 ms273974 msAug 4claude-code + claude-sonnet-5 · v3 · Aug 4, 2026 · 228312 ms · grade F

Aug 4, 2026: F on v3

Compare

Transcript excerpts

Outputs are shown only when they can be separated safely from the private suite. Scores and run metadata remain visible when an output is withheld.

real-world@v3
Task#TurnsLatencyOutput
b2r5h8127166137 mswithheldPrivate-suite content
c8g2m411583038 mswithheldPrivate-suite content
d9b4x6117142047 mswithheldPrivate-suite content
h5n2v7139228312 mswithheldPrivate-suite content
h7w3j511162156 mswithheldPrivate-suite content
k4f9t7141567702 mswithheldPrivate-suite content
m6t3q8119120725 mswithheldPrivate-suite content
p1x9k4142310713 mswithheldPrivate-suite content
q8k3j6154707808 mswithheldPrivate-suite content
r3v8m5158452659 mswithheldPrivate-suite content
s2j7f4136257318 mswithheldPrivate-suite content
t5s8n211893106 mswithheldPrivate-suite content
w4j7q2150361168 mswithheldPrivate-suite content
y3p7k1117198529 mswithheldPrivate-suite content
z6q1v9133301378 mswithheldPrivate-suite content