# Building a Multi-Agent AI System from Scratch (No Frameworks) > Source: > Published: 2026-07-12 12:53:28+00:00 You dont need CrewAI or AutoGen. Heres how to build a multi-agent pipeline in pure Python. ## The Concept 5 AI agents collaborate in a pipeline: Each agent has a role, a system prompt, and passes output to the next. ## Implementation ## Why No Framework? - **Simpler**: 50 lines vs 500 lines with CrewAI - **Debuggable**: You can see exactly whats happening - **Flexible**: Add/remove agents easily - **No dependencies**: Just `requests` library - **Works with any LLM**: Ollama, OpenAI, Groq, anything ## Pro Tips - **Different models per agent**: Use codellama for code review, llama3.2 for writing - **Temperature**: Lower for Researcher (factual), higher for Writer (creative) - **Fallback**: If one model fails, try another - **Logging**: Save each agents output for debugging ## Use Cases - Blog post pipeline - Video script generation - Social media content - Research reports - Code review chains 🔗 Full implementation: [github.com/amrendramishra/ai-tools](https://github.com/amrendramishra/ai-tools) 🌐 [amrendranmishra.dev](https://amrendranmishra.dev) *Building AI tools daily. Follow for more.*