OpenCode

📝 Detailed Overview

OpenCode is a fully open-source, terminal-based AI coding agent inspired by Claude Code and Codex. It runs locally in your terminal, reads your codebase, writes and edits files, runs shell commands, and fixes bugs. Supports any OpenAI-compatible API backend (Claude, GPT, DeepSeek, Ollama local models). Perfect for developers who want a self-hostable, cost-free Claude Code alternative.

Built to optimize workflows and scale output, OpenCode represents a high-performing utility within the coding space. By leveraging the advanced reasoning and context length capabilities of the Any OpenAI-compatible API (Claude, GPT, DeepSeek, Ollama) model, this tool automates manual tasks, streamlines layouts, and helps teams iterate their digital products quickly.

📊 Ratings breakdown

🔍 Our Verdict

The best free and open-source Claude Code alternative for budget-conscious developers.

⬇️ How to Download & Install

1. Install via npm: npm install -g opencode-ai
2. Configure your API key: opencode config set api-key YOUR_KEY
3. Select your model: opencode config set model claude-opus-4 (or gpt, deepseek, etc.)
4. Start in your project folder: cd my-project && opencode
5. For local/offline use with Ollama: ollama pull deepseek-coder then set base-url http://localhost:11434/v1