Gemini CLI vs Codex CLI: Which Is More Actively Maintained? Live GitHub Data

Gemini CLI is Google’s open-source AI agent for the terminal, and Codex CLI is OpenAI’s open-source coding agent that also runs in the terminal. This page compares how actively each project is maintained, using live data from GitHub.

GitHub data checked 3 minutes ago.

Side by side

MeasureGemini CLIOpenAI Codex CLI
StatusSlowing downActive
Commits, last 91 days2023,988
Same 91 days a year earlier1,5221,096
Change vs last year−87%+264%
Last commit16 Oct 202618 Oct 2026
GitHub stars107,440129,757
Stars gained, daily snapshots+14 in 1 day+255 in 2 days
LicenceApache-2.0Apache-2.0
Managed cloudNot checkedNot checked
Visitor rating—0 of 3 ratings needed—0 of 3 ratings needed

What the numbers say

In the last 91 days, Gemini CLI’s default branch received 202 commits and OpenAI Codex CLI’s received 3,988. That is about 20 times as many for OpenAI Codex CLI, though projects that squash each pull request into one commit show fewer commits for the same work, so treat the gap as a rough signal. Against the same 91 days a year earlier, Gemini CLI is at −87% and OpenAI Codex CLI at +264%. The index labels Gemini CLI “slowing down” and OpenAI Codex CLI “active”. Gemini CLI has 107,440 GitHub stars and OpenAI Codex CLI has 129,757; stars show how many people bookmarked a project, not how many use it.

What this comparison does not tell you

These are maintenance signals only. They do not measure speed, output quality, features, documentation or how easy either tool is to run, and we have not benchmarked either tool for this page. A quiet repository can still be a good fit for a stable job, and a busy one can still break between releases. Use the numbers to decide what to check next, not which tool is better.

Each tool’s full record

How this is measured: commits on each repository’s default branch counted through the GitHub API, the last 91 days against the same 91 days a year earlier; stars, licence and archived flag from the repository; README checked daily for maintenance notices. Visitor ratings come from visitors to each tool’s page, not from EvalAITools.