OpenCode
Open-source, terminal-native coding agent that works with any model
Free
Code Assistant
// about OpenCode
OpenCode is a fully open-source coding agent built for the terminal, with a desktop app, IDE extension, and browser client running on the same core. It isn't locked to one AI lab: you bring your own API key and pick from more than 70 models, including Claude, GPT, Gemini, and local options, depending on the task. Built by the team behind SST and terminal.shop, it passed 140,000 GitHub stars within its first year, making it one of the most widely adopted alternatives to vendor-tied agents like Claude Code and Codex.
// alternatives to OpenCode see all →
Claude Code
Anthropic's agentic coding tool that works directly in your terminal
Codex
OpenAI's coding agent for the terminal, IDE, and desktop
Cursor
AI-powered code editor with intelligent features
Aider
Terminal-based AI pair programmer for your git repo
Windsurf
Agentic AI code editor by Codeium
Cline
Autonomous AI coding agent in VS Code
GitHub Copilot
AI pair programmer for code completion and generation
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Aloud
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Codex
OpenAI's coding agent for the terminal, IDE, and desktop
GitNexus
Knowledge graph that gives coding agents real codebase structure
Muse Code
Meta's terminal-based coding agent for large codebases
Google Antigravity
Google's agentic development platform for autonomous coding