I tried a Claude Code alternative that's local, open source, and completely free - how it works

I was curious if Block's Goose agent, paired with Ollama and the Qwen3-coder model, could really replace Claude Code. Here's how I got started.

NASA used Claude to plot a route for its Perseverance rover on Mars

This past December, Perseverance successfully completed a route through a section of the Jezero crater plotted by Anthropic's ...
Nature

This AI has chemical expertise — and helps synthesize 35 new compounds

It uses a system called simplified molecular-input line-entry system (SMILES). This translates chemical 3D structures into ...
GitHub

ATMI (Asynchronous Task and Memory Interface)

Asynchronous Task and Memory Interface, or ATMI, is a runtime framework for efficient task management in heterogeneous CPU-GPU systems. It provides a consistent API to create and launch tasks from ...