codex-cli + gpt-5.6-luna vs cursor-cli + composer-2.5
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.
structured-extraction@v1AvsA
| Dimension | codex-cli + gpt-5.6-luna | cursor-cli + composer-2.5 | Delta |
|---|---|---|---|
| Capability | 100% | 99% | 1% · codex-cli + gpt-5.6-luna |
| Median latency | 6018 ms | 9923 ms | 3905 ms · codex-cli + gpt-5.6-luna |
| Reliability | 100% | 100% | even |
| Error rate | 0% | 0% | even |
codex-cli + gpt-5.6-luna: 0.1% of ChatGPT Plus per run, about 1685.4 runs per week. cursor-cli + composer-2.5: 6.4% of Cursor Free per run, about 15.6 runs per month. 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.