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Lao Guo's Learning Space
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Lao Guo's Learning Space

AI learning, discussion, and hands‑on practice with self‑reflection

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Recent Articles

Latest from Lao Guo's Learning Space

69 recent articles
Lao Guo's Learning Space
Lao Guo's Learning Space
Apr 2, 2026 · Artificial Intelligence

Large Model Pretraining and Fine‑Tuning: A 2026 Technical Guide from Scaling Laws to Post‑Training Revolution

This article explains the full lifecycle of large language models in 2026, covering pretraining fundamentals, the limits of classic Scaling Laws, data‑centric advances, fine‑tuning strategies, RLHF, DPO, and the emerging post‑training methods GRPO, DAPO and RLVR, with concrete benchmarks and cost analyses.

DAPODPOFine-tuning
0 likes · 17 min read
Large Model Pretraining and Fine‑Tuning: A 2026 Technical Guide from Scaling Laws to Post‑Training Revolution
Lao Guo's Learning Space
Lao Guo's Learning Space
Apr 2, 2026 · Operations

Build an OpenClaw Test Bot in Four Steps: Cut Web Regression from Hours to 22 Minutes

The article walks through why manual web regression testing is painful, introduces OpenClaw as an AI‑driven automation platform, and details a four‑step process—defining tasks, configuring browsers, designing logic, and scheduling runs—that reduced a multi‑hour manual test suite to just 22 minutes while highlighting real‑world results and common pitfalls.

AI AgentOpenClawautomation
0 likes · 12 min read
Build an OpenClaw Test Bot in Four Steps: Cut Web Regression from Hours to 22 Minutes
Lao Guo's Learning Space
Lao Guo's Learning Space
Apr 1, 2026 · Artificial Intelligence

2026 AI Coding Assistant Comparison: From Free to Premium—Which Tool Fits Your Budget?

The article maps the 2026 AI coding market into four camps, breaks down pricing and hidden costs of international and domestic tools, explains how Coding Plan packages can slash expenses, and offers scenario‑based recommendations to help developers choose the most cost‑effective solution.

AI codingTool Comparisoncoding assistants
0 likes · 13 min read
2026 AI Coding Assistant Comparison: From Free to Premium—Which Tool Fits Your Budget?
Lao Guo's Learning Space
Lao Guo's Learning Space
Mar 31, 2026 · Operations

Harness Engineering Best Practices: Real‑World AI Ops Lessons from 4 Companies

This article explains Harness Engineering—a methodology that lets AI agents work reliably by steering humans and automating execution—through core principles, a performance boost demonstrated by OpenAI, and detailed case studies from OpenAI, Citi, Ancestry, and Ulta Beauty, followed by a step‑by‑step adoption roadmap.

AI EngineeringContext EngineeringEntropy Management
0 likes · 11 min read
Harness Engineering Best Practices: Real‑World AI Ops Lessons from 4 Companies
Lao Guo's Learning Space
Lao Guo's Learning Space
Mar 31, 2026 · Artificial Intelligence

2026 Guide to Choosing a Personal Supercomputer for Local DeepSeek (15k‑100k)

With cloud API costs soaring and privacy concerns rising, this 2026 guide compares three personal‑supercomputer options—Apple Mac Studio, NVIDIA DGX Spark, and Mingfan MS‑S1 MAX—using unified memory, memory bandwidth, and AI compute to help developers pick the right hardware for their budget and workload.

AI hardwareDeepSeekLocal Inference
0 likes · 12 min read
2026 Guide to Choosing a Personal Supercomputer for Local DeepSeek (15k‑100k)
Lao Guo's Learning Space
Lao Guo's Learning Space
Mar 31, 2026 · Information Security

OpenClaw Security Hardening: Complete Guide to Protect API Keys and Enforce Least‑Privilege

This guide details why OpenClaw’s high‑privilege capabilities make API keys a critical asset, presents concrete risk scenarios, and walks through practical key management, permission controls, network hardening, data privacy, auditing, and configuration templates to secure AI agent deployments.

API SecurityKey ManagementOpenClaw
0 likes · 14 min read
OpenClaw Security Hardening: Complete Guide to Protect API Keys and Enforce Least‑Privilege
Lao Guo's Learning Space
Lao Guo's Learning Space
Mar 31, 2026 · Artificial Intelligence

March 2026 AI Frontier: Open‑Source Model 2.0, Agent Explosion, and the Three‑Giant Showdown

The March 2026 AI landscape features a 2.0 era of open‑source large models led by DeepSeek‑R1, a breakout year for AI Agents with hierarchical planning and robust tool calls, and a cost‑driven showdown among GPT‑5.4, Claude Opus 4.6 and Gemini 3.1 Pro, reshaping capabilities, pricing, and deployment strategies across cloud and edge.

AI AgentsAI marketAI models
0 likes · 10 min read
March 2026 AI Frontier: Open‑Source Model 2.0, Agent Explosion, and the Three‑Giant Showdown