Electricity Bench

composer-2.5 vs grok-4.6

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

composer-2.5Clears tier 2 (partial tier 5) at 1.8% of Cursor Pro per runDOVERALLgrok-4.6Clears tier 4 (partial tier 5) at 2.8% of SuperGrok per runCOVERALL
real-world@v3CvsC
Dimensioncomposer-2.5grok-4.6Advantage
Capability57%60%+3% (grok-4.6 leads)
Median task time1m 30s6m 19s4m 48s faster (composer-2.5 leads)
Approx. task cost$0.023 / task$0.013 / task$0.011 / task lower (grok-4.6 leads)

composer-2.5: 1.8% of Cursor Pro (1.8% / 1m) per run. grok-4.6: 2.8% of SuperGrok (2.8% / 1w) per run. Each figure is a share of that agent's own plan, so there is no delta to draw.

spec-planning@v1DvsC
Dimensioncomposer-2.5grok-4.6Advantage
Capability51%60%+9% (grok-4.6 leads)
Median task time4m 30s32m 10s27m 40s faster (composer-2.5 leads)
Approx. task cost$0.029 / task$0.093 / task$0.065 / task lower (composer-2.5 leads)

composer-2.5: 0.6% of Cursor Pro (0.6% / 1m) per run. grok-4.6: 5.4% of SuperGrok (5.4% / 1w) per run. Each figure is a share of that agent's own plan, so there is no delta to draw.

vibe-coding@v1DvsD
Dimensioncomposer-2.5grok-4.6Advantage
Capability37%46%+9% (grok-4.6 leads)
Median task time1m 51s8m 23s6m 32s faster (composer-2.5 leads)
Approx. task cost$0.024 / task$0.012 / task$0.013 / task lower (grok-4.6 leads)

composer-2.5: 0.1% of Cursor Pro (0.1% / 1m) per good solve. grok-4.6: 0.2% of SuperGrok (0.2% / 1w) per good solve. Each figure is a share of that agent's own plan, so there is no delta to draw.

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

Frequently asked questions

Which is better for coding, composer-2.5 or grok-4.6?

grok-4.6 clears higher: tier 4 of 5 versus tier 2 for composer-2.5 on real-world@v3, our private suite of real-world coding problems. Latest measurement 2026-08-16.

How much do composer-2.5 and grok-4.6 cost?

composer-2.5 runs on Cursor Pro at $20/month (public price as of 2026-07-20). grok-4.6 runs on SuperGrok at $30/month (public price as of 2026-07-20).