Open-source AI coding agent for terminal, desktop, and IDE. Works with 75+ LLM providers including Claude, GPT, Gemini, and local models. Runs parallel sessions on one project.
OpenCode is an open-source coding agent from the team at Anomaly that runs as a terminal UI, a desktop app, or an IDE extension. It is provider-agnostic by design: it connects to 75+ LLM providers through Models.dev, including Claude, ChatGPT plans, Gemini, GitHub Copilot logins, and local models, so you are never locked to one vendor. Standout features include LSP integration that loads the right language servers automatically and multi-session support for running parallel agents on the same project (session share links were discontinued in v1.19.1 in October 2026). The project's site reports over 208,000 GitHub stars and 950 contributors, making it one of the largest open-source agent communities. If Claude Code's workflow appeals to you but you want full control over the model behind it, this is the strongest open alternative.
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curl -fsSL https://opencode.ai/v2/install | bashnpm install -g @opencode/clibrew install anomalyco/tap/opencode-v2Sources: opencode.ai, OpenCode docs (v2 install), OpenCode docs (v1 install), OpenCode Zen, OpenCode Go plans, anomalyco/opencode README, GitHub releases
Open-source (MIT) terminal coding agent, renamed Codewhale, with Plan, Work, and Operate modes, approval postures, /undo and /restore, receipts, MCP servers, sub-agents, and a local runtime HTTP API. Provider-neutral: 40+ built-in provider routes plus local models, no longer DeepSeek by default.
OpenAI's open-source (Apache-2.0) terminal coding agent, built in Rust. Included with ChatGPT Plus from $20/mo or usable with an API key. Defaults to GPT-6.1 Sol.
Open-source terminal coding agent from Moonshot AI. Launched on Kimi K2.5 and now runs Kimi K3 with up to 1M tokens of context. Agent Swarm runs up to 100 parallel sub-agents.
Anthropic's agentic coding CLI. Runs in your terminal, edits files autonomously, spawns sub-agents, and maintains memory across sessions. Defaults to Claude Opus 5.5 on paid plans as of October 2026.
Open-source AI coding agent for terminal, desktop, and IDE. Works with 75+ LLM providers including Claude, GPT, Gemini, and local models. Runs parallel sessions on one project.
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Subscribe FreeAnthropic's agentic coding CLI. Runs in your terminal, edits files autonomously, spawns sub-agents, and maintains memory across sessions. Defaults to Claude Opus 5.5 on paid plans as of October 2026.
AI-native code editor forked from VS Code, now sold as part of The X Subscription. Agent edits multiple files at once and Tab autocomplete predicts your next edit. Plus is $8/mo (Cursor's own Grok and Composer models only); Premium at $30/mo adds third-party models at API list price.
OpenAI's coding agent for terminal, cloud, IDE, GitHub, Slack, and Linear workflows. Reads repos, edits files, runs commands, and returns reviewable diffs.
What MCP servers are, how AI clients like Claude Code call their tools, how to add one through .mcp.json, and how to build your own in TypeScript.
AI AgentsThe primary command-line entry point for Claude Code sessions.
Claude CodeInstall the dd CLI and scaffold your first AI-powered app in under a minute: Next.js 16, Convex, Clerk, Autumn, Tailwind v4 and an agent-ready CLAUDE.md.
Getting Started
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