# Atoms vs OPT — Fit & Features

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

Compare Atoms and OPT by use case, features, limitations, and evaluation questions.

## Compare fit, features, and limitations

### Atoms
Build applications with coordinated AI development agents.
Best fit: Developers and product teams building applications with AI assistance.
- AI app development
- Multi-agent workflows
- App prototyping
Before you choose: Review generated changes, run project checks, and confirm repository permissions, model costs, and deployment requirements.
Pricing: https://atoms.dev/pricing
- [Read Atoms profile](https://trutool.co/tools/atoms): Read Atoms profile

### OPT
We’re on a journey to advance and democratize artificial intelligence through open source and open science.
Best fit: People and teams evaluating ai coding assistants 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://huggingface.co/pricing
- [Read OPT profile](https://trutool.co/tools/opt): Read OPT profile