Gemini CLI
Google's open-source coding CLI. Free tier with Gemini 2.5 Pro. Supports tool use, file editing, shell commands. 1M token context window.
Gemini CLI is Google's free, open-source terminal coding assistant. It connects to Gemini 2.5 Pro (1M token context window — the largest of any coding tool) and supports file editing, shell command execution, and MCP tool use. The free tier is generous enough for daily use. It's the best free alternative to Claude Code. My walkthrough video got 54,000 views. The 1M context window means it can ingest entire large codebases in a single prompt — something Claude Code and Codex can't do in one shot.
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Google's open-source coding CLI. Free tier with Gemini 2.5 Pro. Supports tool use, file editing, shell commands. 1M token context window.
Try Gemini CLIMore AI Coding Tools
Claude Code
Anthropic's agentic coding CLI. Runs in your terminal, edits files autonomously, spawns sub-agents, and maintains memory across sessions. Powered by Claude Opus 4.
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AI-native code editor forked from VS Code. Composer mode rewrites multiple files at once. Tab autocomplete predicts your next edit. Pro plan is $20/mo.
OpenAI Codex
OpenAI's cloud coding agent. Runs in a sandboxed container, reads your repo, executes tasks, and submits PRs. Uses GPT-5.3 (codex model). Available in ChatGPT.