Best OpenAI Codex CLI Alternatives in 2026
OpenAI Codex CLI is one of many terminal AI coding tools, and it isn't the right fit for everyone. Whether you're after a lower price, a different platform, or a tool that does one thing better, here are the 8 closest alternatives — each compared on what actually matters.
Still deciding? Read about OpenAI Codex CLI itself →
Open-source AI pair programmer that runs in your terminal — paste a task, it edits your files and auto-commits the changes to git.
Free, open-source AI coding agent from Block that can write code, run commands, debug, and interact with MCP servers — works with any LLM including free local models.
MIT-licensed open-source AI agent gateway that lets you control your computer and run autonomous tasks through chat apps like WhatsApp, Telegram, Slack, Discord, and iMessage.
Free, open-source AI coding agent for the terminal with a polished TUI — bring your own API key for Claude, GPT, or Gemini across 75+ providers, or run a local model through Ollama at zero cost.
Google's free, open-source terminal coding agent — runs agentic file editing, shell commands, and live web search via @search grounding, powered by Gemini 2.5 Pro.
Free, open-source tool for running large language models locally on your own hardware — no internet connection or API key required.
A React-based framework for creating videos programmatically — write components in TypeScript and render them to MP4, locally or via AWS Lambda.
Anthropic's agentic AI coding CLI — runs in your terminal, reads your files, edits code, runs commands, and works through multi-step tasks autonomously.