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Agentic Coding Tools

Autonomous AI agents that plan, code, debug, test, and ship, all from your terminal. The essential toolkit for AI-native development.

Essential: The Big Three

The three major platform-backed agentic CLIs. Click to expand details.

Claude Code

by Anthropic
Deep reasoningComplex refactoringEnterprise-grade

The leading agentic coding CLI. Deep reasoning, large-scale refactoring, and autonomous multi-step workflows. Plans, edits files, writes tests, and commits, all from the terminal. Works with API keys or Claude subscription.

npm install -g @anthropic-ai/claude-code

Gemini CLI

by Google
Free tierMultimodalOpen source

Google's open-source agentic CLI bringing Gemini models to the terminal. Strong multimodal understanding, Google Cloud integration, and a generous free tier. Built-in Google service tools for seamless cloud workflows.

npm install -g @google/gemini-cli

Codex CLI

by OpenAI
GPT-5 accessChatGPT plan supportCustomizable

OpenAI's terminal-based coding agent with direct access to GPT models. Works with ChatGPT subscription or API keys. Fully customizable with config files, supporting external model providers including GLM and Minimax.

npm install -g @openai/codex

Notable: The Specialists

Open-source alternatives, specialized tools, and innovative approaches to agentic coding.

OpenCode

by SST
Open sourceAny modelLocal-first

A truly open-source alternative to Claude Code. Supports 75+ LLM providers including local models via Ollama. Switch models mid-session without losing context. Polished interactive terminal UI with LSP integration and extensive customization.

npm install -g opencode-ai@latest

Aider

by Paul Gauthier
Git-nativeEditor agnosticPioneer

Terminal-first, Git-native coding agent. Automatically stages changes and creates commits. Understands repository structure for contextual suggestions and works with any text editor. A pioneer of the agentic CLI space.

pip install aider-chat

Droid

by Factory
Debugging aceDocker-awareFree trial

Top of the terminal bench for solving local code problems. Reads Docker logs, returns commands, and fixes things automatically. Excellent for debugging, building, and automating coding setups. Free professional trial available.

curl -fsSL https://app.factory.ai/cli | sh

Warp

by Warp
Terminal replacementMulti-agentModern UI

An agentic development environment: a terminal replacement with modern UI and built-in agent capabilities. Its Oz agent can orchestrate other CLI tools like Claude Code, Codex, or Gemini CLI in a unified interface.

Amazon Q Developer

by Amazon
AWS integrationEnterpriseFull lifecycle

Generative AI-powered assistant with real-time code suggestions, inline chat, CLI completions, and natural language-to-bash translation. Autonomously implements features, tests, reviews, and refactors code with deep AWS integration.