AI tools
OpenAI Codex
An AI coding agent for working through software tasks, available through terminal, editor and cloud experiences.
Claude Code
A terminal-based coding agent that can explain a codebase, carry out routine development work and help with Git workflows.
Google Gemini CLI
An open-source terminal coding agent. Its current README directs unpaid and Google One users to Antigravity CLI; verify current access before choosing it.
Use cases
Get your bearings in an unfamiliar codebase
Use a coding assistant to map a project, explain unfamiliar modules and prepare questions before making changes.
Turn a small coding task into a reviewable change
Work with a coding agent on a bounded task, then inspect the diff and run the project’s actual checks.
Comparisons
Codex vs Claude Code: choose a coding workflow
Compare the documented ways to access two coding agents, with a focus on your workflow rather than an untested performance ranking.
Codex vs Gemini CLI: access, tools and constraints
A research-based comparison of coding-agent entry points, documented tools and account requirements.
AI News
Gemini CLI 0.64.0 includes file-operation fixes
Google’s release notes list serialized file-tool operations, atomic writes and additional state-recovery fixes.
Codex 0.163.0 adds searchable terminal preferences
Codex 0.163.0 adds a searchable settings panel in its terminal interface, with immediate updates for supported preferences and notices when a restart is needed.