Building Autonomous Agents

Written by Jakub Rusinowski · Last updated July 10, 2026

Agents are AI systems that can use tools (web search, file execution) to complete complex tasks.

In This Guide

• Frameworks
• Requirements

Agents are AI systems that can use tools (web search, file execution) to complete complex tasks.

Frameworks

CrewAI

Orchestrate a team of agents. Example: A 'Researcher' agent finds info, a 'Writer' agent drafts the post.

from crewai import Agent, Task, Crew
# Define agents and tasks...

AutoGen (Microsoft)

Multi-agent conversation framework. Agents chat with each other to solve problems.

Requirements

Agents require smart models. Small models (7B) often get stuck or hallucinate tool usage.

• Recommended: Llama 3.1 70B (quantized) or Qwen 2.5 32B/72B.
• Minimum: Llama 3.1 8B (it has specific tool-use training).

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