Hacker NewsKarpathy MicroGPT Full GPT Training in 200 Lines 994 PointsKarpathy·high signalXBlueskyLinkedInCopy linkComplete GPT training and inference in 200 lines Python. 4,192 parameters. Landmark educational resource at nearly 1000 HN points.SourceSource pageKarpathy↳ Follow the threadPolicy dependency / Stack layerUnsloth 0.1.805-beta doubles Qwen3.8-Flash-Next and GLM-5.3-Flash inference with MTP on by defaultGitHubPolicy dependency / Stack layerFour advisories land on Databricks' Omnigent meta-harness, one critical, all reported by an autonomous security agentGitHub Security AdvisoriesPolicy dependency / Stack layerCROSS-CATEGORY: Four Unrelated Vendors Shipped Agent Authorization Control Planes Inside 48 HoursJetStream (corroborated by Genesys Xperience 2026 coverage, aiagentstore.ai and Hacker News Show HN)Contrast / Update threadAutonomous research loops keep editing different lines while proposing the same algorithmarXivStack layer / ContrastSMELT Loops the Middle Half of an MoE Transformer Twice and Saves 6.8-18% of Training FLOPsarXiv 2609.01343Policy dependency / Stack layerTyped Provenance Guardrails Block All 19 Unsafe Releases From a Persistent Agent's Autobiographical MemoryarXiv 2609.02127Stack layer / ContrastmzCache Cuts On-Device LLM Time-to-First-Token 2.1-5.5x When the OS Evicts Model MemoryarXiv 2609.01338Stack layerAn enterprise consolidated 200+ internal apps onto one self-hosted model by training three separate GRPO experts and merging them with two-stage SLERParXiv