Amp

Amp is a command-line coding agent that uses advanced AI models to help developers write, review, and debug code. It functions as an intelligent assistant that you run directly from your terminal, working with your existing codebase to generate implementations, suggest improvements, and solve technical problems. The tool connects to frontier models like GPT-5.5 and Claude Opus to provide what the creators call 'agentic' coding assistance—meaning it can work autonomously on complex tasks rather than just offering simple completions.

What sets Amp apart is its focus on staying current with the most capable AI models available. The team actively removes outdated workflows and features that no longer perform well, ensuring users work with what's effective now. The CLI is designed for speed, even on lengthy coding sessions, and can be extended through a plugin system inspired by Pi.dev. This allows teams to add custom tools, enforce coding standards, and integrate with their specific development environment.

This tool benefits developers who want AI assistance deeply integrated into their workflow rather than through a separate web interface. Real-world examples from the site show users building iOS apps, refactoring component architectures, implementing parallel processing agents, and creating data flow diagrams. The pay-as-you-go pricing with no markup for individuals makes it accessible for solo developers while supporting team deployments for larger organizations.