Beautiful Soup

Agent Optimization with Pydantic AI: GEPA, Evals, Feedback Loops — Samuel Colvin, Pydantic

May 7, 2026 · 1:20:40

Samuel Colvin shows how to improve production agents without redeploying using Pydantic AI's GEPA, evals, and Logfire managed variables. GEPA uses a genetic algorithm to evolve prompts, achieving 96.7% accuracy — up from 87% with a simple prompt and 92% with an expert prompt — on a Wikipedia-based political relations task. Managed variables let you update prompts, models, and parameters live via a web interface and A/B test targeting. Evals compare against a golden dataset of 650 MPs; Colvin runs 65 cases in 30 seconds using GPT-4.1. He discusses that prompt optimization is most valuable with private data, that implicit user feedback (e.g., user's next action) can build golden datasets, and that overfitting to small test sets is a risk — the GEPA optimizer may exclude valid relations like 'uncle' if they don't appear in the training split.

Hyperspace More Nodes Is All You Need: Nicolas Schlaepfer

Sep 4, 2024 · 5:48

Nicolas Schlaepfer introduces Hyperspace's decentralized AI network and new product, a node editor for power users that generates agentic plans via a DAG orchestration model (HyperEngine v3). The network, with over 15,000 nodes, leverages consumer devices rather than GPUs, running inference through Llama.cpp. The product combines prompt engineering, visual React flow, Python execution, and RAG-like web browsing, using Qwen 2 instruct for reasoning and LLaMA 3 70B for summarization. Schlaepfer emphasizes diverse open-source models and a virtual file system for agentic primitives. Availability via waitlist is announced later this week.