January 2026

Simon Willison's Weblog

First impressions of Claude Cowork, Anthropic's general agent

Anthropic has launched Claude Cowork, a research preview that extends their Claude Code agent capabilities beyond development tasks. This represents the transformation of AI coding tools into...

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AI Engineer

OpenAI + @Temporalio : Building Durable, Production Ready Agents - Cornelia Davis, Temporal

This workshop demonstrates how to build durable AI agents that survive crashes and failures by combining OpenAI's Agents SDK with Temporal's distributed systems platform. The session covers building...

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AI Engineer

Your MCP Server is Bad (and you should feel bad) - Jeremiah Lowin, Prefect

Jeremiah Lowin, founder of Prefect and creator of fastmcp, explains why most MCP servers are poorly designed and how to build better ones. The core insight is that agents need curated interfaces...

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IndyDevDan

AGENT THREADS. How to SHIP like Boris Cherny. Ralph Wiggum in Claude Code.

The video introduces "thread-based engineering" as a framework for measuring and improving AI agent workflows. Agent threads are units of work where engineers prompt at the start, agents execute tool...

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Universe of AI

LTX-2 Is the NEW #1 Open-Source AI Video Model (Audio + Video, Runs Locally)

LTX-2 represents a breakthrough in AI video generation by solving the fundamental problem of audio-video synchronization that plagues current models. Unlike traditional approaches that generate video...

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