Choosing an Assistant

Nyia Keeper ships five assistants. They share the same safe, dockerized workflow — they differ in model, strengths, and how you authenticate.

Assistant	Strengths	Best for	Authentication
Claude	Advanced reasoning, code analysis	Complex architecture, debugging, reviews	API key
Gemini	Multimodal, fast responses	Images, documents, rapid prototyping	OAuth
Codex	Code completion, generation	Boilerplate, refactoring, snippets	OpenAI API
OpenCode	Privacy, customization	Local inference, sensitive projects	None required
Vibe	Mistral AI, fast inference	Code generation, chat	Mistral API

Each assistant is launched with its own command — nyia-claude, nyia-gemini, nyia-codex, nyia-opencode, nyia-vibe — and authenticated once with --login (or --set-api-key for key-based assistants). See Quick Start for the per-assistant auth steps.

You can use several assistants on the same project; each runs in its own container and works on a git branch, so they never collide.

Next: Quick Start →