#REPL
4814 related articles
Industry Insights·3 min
Data Centers Taking Over Farmland? The Numbers That Debunk an Exaggerated Land Controversy
Are data centers really devouring farmland? U.S. farmers sold 77x more land than data centers occupy, while crop yields hit record highs. Real data debunks the exaggerated land controversy.
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Tutorials·2 min
Building an iNaturalist Observation Display Tool Entirely on a Phone with Claude Code
Simon Willison built an iNaturalist observation display tool on his phone while camping using Claude Code, Git Scraping, and GitHub Actions with zero servers.
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Tech Frontiers·3 min
Kimi-Writer: An Open-Source AI Novel Writing Agent Powered by Deep Reasoning
Deep dive into the Kimi-Writer open-source project — an AI novel writing Agent built on Kimi-K2-Thinking with deep reasoning, autonomous planning, and long-form narrative capabilities.
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Expert Opinions·2 min
The Real Reason Zig Bans AI Code Contributions: Investing in People, Not Code
Zig implements the strictest anti-AI policy in open source, banning all LLM-generated contributions. Learn about their "Contributor Poker" philosophy, why Bun's 4x speedup can't be upstreamed, and implications for open source governance.
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Tech Frontiers·2 min
Microsoft Reorganization: Teams Merges with Office and LinkedIn to Build a Unified Work Platform
Microsoft places Teams under LinkedIn and Office leader Ryan Roslansky, forming a new "Work" division. The restructuring integrates three core products to unify AI experiences and strengthen enterprise market dominance.
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Tech Frontiers·2 min
LLM 0.32 Refactoring Deep Dive: Message Sequence Input and Streaming Multi-Type Response Design
Deep dive into LLM 0.32 alpha's two core refactorings: message sequence API aligned with OpenAI format, stream_events for typed streaming responses, serialization design, and backward compatibility.
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Tutorials·3 min
Phone + Claude Code: Building an iNaturalist Observation Tool with Zero Servers — Full Workflow
Simon Willison built a complete iNaturalist observation tool during camping using his phone and Claude Code. A deep dive into the three-layer architecture: Python CLI, Git Scraping, and AI-generated frontend — all on GitHub with zero servers.
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Deep Dives·4 min
Kortix Open-Sources Agent Computer Use: A Rust-Powered CLI Tool for AI Computer Control
Kortix AI open-sources Agent Computer Use, a high-performance Rust CLI tool enabling AI agents to control computers. Explore its architecture, advantages over Anthropic's Claude Computer Use, and future of open-source computer control tools.
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Product Reviews·3 min
TRE Regex Engine Python Binding in Practice: From Principles to ReDoS Defense
Deep dive into TRE regex engine's backtracking-free design, Python ctypes binding implementation, and ReDoS defense testing compared to Python's re module for security-sensitive applications.
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Tech Frontiers·2 min
LLM CLI 0.32a1 Released: Fixes Tool-Calling Session Storage Bug
Simon Willison's open-source CLI tool LLM releases v0.32a1, fixing a data integrity issue when restoring tool-calling sessions from SQLite. Learn about the fix, core features, and how to update.
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Research·3 min
SVDQuant: 4-bit Quantization Enables Efficient Diffusion Model Inference on Consumer GPUs
SVDQuant, an ICLR 2025 Spotlight paper, achieves 4-bit diffusion model quantization via low-rank decomposition that absorbs outliers, reducing memory by 75%. Open-source engine Nunchaku (3800+ stars) enables FLUX inference on consumer GPUs like RTX 4060.
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Deep Dives·3 min
LLM 0.32 Refactor: How Message Sequences and Streaming Chunks Are Reshaping Python LLM Interactions
Simon Willison releases LLM 0.32a0 alpha with message sequences and typed streaming chunks, redefining how Python developers interact with LLMs while maintaining full backward compatibility.
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Industry Insights·2 min
Data Centers Taking Over Farmland? The Data Reveals This Is an Overblown Non-Issue
Are data centers really consuming farmland and threatening food security? This article uses real data to analyze the U.S. data center land use debate, revealing that farmland loss to data centers is just 1/77th of what farmers sell voluntarily.
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Deep Dives·4 min
Agent, MCP, and Function Calling: A Complete Guide to Their Differences and Relationships
A deep dive into the relationships between AI Agent, MCP protocol, Function Calling, and Prompt. From basics to full architecture, build a clear cognitive framework for AI app development.
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Tutorials·3 min
Building an AI Digital Human Agent from Scratch: Architecture Design & Full Technical Breakdown
Complete guide to building an AI digital human Agent, covering Agent, RAG, WebRTC, and Docker deployment with architecture design and engineering best practices.
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Tech Frontiers·2 min
Altman Takes the Stand: Winning the Courtroom Presence, But Maybe Not the Case
Sam Altman testified in the OpenAI lawsuit, facing Elon Musk's accusation of "stealing a charity." Analysis of his courtroom performance, key evidence, and implications for AI governance.
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Tech Frontiers·2 min
Datasette 1.0a29 Released: Fixing a Gnarly Segfault Race Condition with GPT-5.5
Datasette 1.0a29 preview released, fixing a segfault race condition introduced by test optimization. Developer Simon Willison used GPT-5.5 xhigh to help reproduce the issue, showcasing AI debugging in practice.
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Tech Frontiers·2 min
Codex Adds OpenAI Developers Plugin — Building AI Apps with AI Just Got Easier
OpenAI Codex adds the Developers plugin, letting developers directly access OpenAI API docs and best practices to rapidly build AI Agents and smart apps.
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Tech Frontiers·3 min
OpenAI Codex Adds Computer Use: AI Agents Autonomously Control Mac in the Background
OpenAI adds Computer Use to Codex, enabling AI agents to autonomously click, type, and operate across Mac apps in the background without taking user control.
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Tech Frontiers·2 min
OpenAI Symphony: One Codex Agent Per Task — A New Paradigm for Multi-Agent Parallel Programming
Deep dive into OpenAI's Symphony: assigning an independent Codex agent to each task for multi-agent parallel programming. Explore its architecture, developer impact, and industry trends.
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