OpenCode

Open source AI coding agent that helps developers write code across multiple interfaces: terminal, desktop app, and IDE extensions.

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Overview

OpenCode is an open source AI coding agent that helps developers write code across multiple interfaces: terminal, desktop app, and IDE extensions. With over 160,000 GitHub stars and 7.5 million monthly users, it supports 75+ LLM providers including Claude, GPT, and Gemini, plus local models. The tool is built with privacy as a core principle—it doesn't store your code or context data, making it suitable for privacy-sensitive environments.

Key capabilities include multi-session support for parallel agents, shareable session links for debugging, LSP integration, and the ability to work with any LLM provider. Users can leverage existing subscriptions (GitHub Copilot, ChatGPT Plus/Pro) or use OpenCode's curated Zen models that have been tested and optimized specifically for coding tasks.

Key features

75+ LLM provider support
Privacy-first architecture
Multi-session parallel agents
Shareable session links
LSP integration
Available as terminal, desktop, and IDE extension
Plan mode for feature design
Undo/redo functionality
GitHub Copilot and ChatGPT Plus integration
Curated Zen models for coding

Pros

Open source with 160K+ GitHub stars
No code or context data storage
Flexible LLM provider options
Multiple interface options (terminal, desktop, IDE)
Free models included
Active community (900+ contributors)
Supports local models

Cons

Requires API keys for most LLM providers
Windows support recommended via WSL
Requires modern terminal emulator
Learning curve for optimal usage

Use this if

You need an open source AI coding agent with privacy guarantees, want flexibility in LLM provider choice, or prefer terminal-based development workflows.

Skip this if

You require a fully managed, closed-source solution or need guaranteed enterprise support contracts.

Best for

Writing and refactoring codeAdding new features to projectsUnderstanding codebasesPrivacy-sensitive development environmentsTeams using multiple LLM providersTerminal-first developers

Alternatives

GitHub CopilotCursorCodeiumTabnineAmazon CodeWhisperer

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