Codex CLI vs Gemini CLI
Side-by-side comparison of 2 tools. Click a tool name to view the full review.
Category
AI Coding
AI Coding
Description
OpenAI's open-source terminal coding agent built in Rust. Runs locally, reads your repo, edits files, and executes commands. Powered by o3 and o4-mini models.
Google's open-source coding CLI. Free tier with Gemini 2.5 Pro. Supports tool use, file editing, shell commands. 1M token context window.
Add another tool
Want deeper comparisons?
Check out the in-depth head-to-head comparisons with pros, cons, and verdicts from real usage.
Get Smarter About AI Dev
New tutorials, open-source projects, and deep dives on coding agents - delivered weekly.
One email per weekReal code, not theoryFree forever