Analysis
This research provides valuable insights for engineers using AI coding tools, debunking the perception that Copilot CLI is significantly slower than Codex CLI. The study's detailed benchmarking and analysis offer a practical comparison, highlighting the nuances of performance across different scenarios and revealing that both tools are viable options for code review tasks.
Key Takeaways
- •Despite perceived slowness, the study found no significant difference in average response time between Codex CLI and Copilot CLI.
- •Codex CLI showed slightly better efficiency in terms of output per time unit, but the difference may not be significant in practical use.
- •Cold starts were faster on Copilot CLI, while warm starts performed similarly; however, the author's initial perception of Copilot being slower was likely due to usage patterns and potential configuration issues.
Reference / Citation
View Original"After 180 measurements, there was no statistically significant difference in average response time."