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Atomic Agents vs Fixie
People
Price
Free
Usage-based
AI Agents
Annual estimate10 people, entry price
Free
Usage-based
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AI Agents
Overview
Focus
AI Agents
AI Agents & Sidekicks
Product
Lightweight Python framework for building modular, predictable, production-ready AI agents using Pydantic.
Fixie provides tools and infrastructure for building production-ready AI agents that can take actions, access tools, and engage in multi-turn conversations with users.
Headquarters
Ghent, Belgium
Seattle, Washington
Company size
2-10 employees
11-50 employees
Founded
2024
2022
Pricing details
Published rate
Free
Usage-based
Free options
Free plan
Free plan, Free trial
Source updated
Oct 30, 2026
Oct 29, 2026