codex-cli + gpt-5.6-sol vs codex-cli + gpt-5.6-terra

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.

codex-clicodex-cli + gpt-5.6-soloverall pending codex-clicodex-cli + gpt-5.6-terraoverall pending

structured-extraction@v1AvsA

Dimension	codex-cli + gpt-5.6-sol	codex-cli + gpt-5.6-terra	Delta
Capability	100%	100%	even
Median latency	8165 ms	5616 ms	2549 ms · codex-cli + gpt-5.6-terra
Reliability	100%	100%	even
Error rate	0%	0%	even

codex-cli + gpt-5.6-sol: 0.1% of ChatGPT Plus per run, about 1526.5 runs per week. codex-cli + gpt-5.6-terra: 0.1% of ChatGPT Plus per run, about 1527.2 runs per week. 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.