# Haystack vs YYLO — Fit & Features

Canonical: https://trutool.co/compare/haystack-vs-yylo
Author: Snehil (https://trutool.co/authors/snehil)

Compare Haystack and YYLO by use case, features, limitations, and evaluation questions.

## Compare fit, features, and limitations

### Haystack
Framework for retrieval-augmented generation and AI agent pipelines.
Best fit: Developers building and evaluating custom agents.
- Framework for retrieval-augmented generation and AI agent pipelines
Before you choose: Check licensing, maintenance status, supported providers, and hosting or inference costs.
Pricing: https://haystack.deepset.ai/
- [Read Haystack profile](https://trutool.co/tools/haystack): Read Haystack profile

### YYLO
YYLO (why-lo): AI coding-agent orchestration CLI with equivalent yylo and yy launchers.
Best fit: People and teams evaluating ai agent frameworks for a specific workflow.
- Core product workflow
Before you choose: Test a representative task, inspect outputs, and confirm integrations, permissions, data handling, licensing, and current costs.
Pricing: https://github.com/pricing
- [Read YYLO profile](https://trutool.co/tools/yylo): Read YYLO profile