Not trials — actually usable free tiers: ChatGPT, Claude, Perplexity, NotebookLM, Ollama, Groq and more, with exactly what's free and where each paywall starts.
The 12 prompting techniques that still measurably improve ChatGPT, Claude and Gemini results in 2026 — with copy-paste examples — plus the old tricks you should retire.
Stanford’s TRACE Explained: Turning AI Agent Failures Into Training Environments
Stanford's TRACE diagnoses exactly which capabilities your AI agent lacks, builds one verifiable synthetic environment per gap, trains a LoRA expert for each, and routes tokens between them. Full technical breakdown.
Build a three-agent AI team — researcher, writer, editor — in ~60 lines of Python with CrewAI 1.x. Full code, crew anatomy diagram, crews-vs-flows guidance, and production tips.
Free, private, offline AI on your own machine: install Ollama, pick the right model for your RAM, use the OpenAI-compatible API, connect LangChain/CrewAI/React, and tune performance.
