Llm Andrej Karpathy released nanochat 2026, an open-source ChatGPT clone costing $100 to run, with a full LLM pipeline in 8,000 lines of code. Separately, AgentMemory launched as a persistent memory system for AI coding agents, achieving 22,000 GitHub stars for real-world benchmarks. nanochat 2026: Andrej Karpathy's Open-Source "ChatGPT for $100" — Full LLM Pipeline in 8,000 Lines9 June 2026·5 mins AgentMemory: The 1 Persistent Memory System for AI Coding Agents — 22,000 Stars for Real-World Benchmarks — A Practical Guide 20268 June 2026·9 mins