Claude Opus 5.5 leads in agentic coding and knowledge work, and costs 40% less to run than Opus 5 on typical workloads.

Build custom Skills to teach Claude specialized tasks. Create once, use everywhere—from spreadsheets to coding. Available across Claude.ai, API, and Code.

Anthropic this morning introduced Claude Skills, a new pattern for making new abilities available to their models: Claude can now use Skills to improve how it performs specific tasks. Skills …

Design, test, and distribute Agent Skills with reusable templates, collaborative reviews, and multi-surface deployment.

A new approach to a foundational document that expresses and shapes who Claude is

Claude Sonnet 4.6 is a full upgrade of the model’s skills across coding, computer use, long-reasoning, agent planning, knowledge work, and design.

A tale of taming unruly documents to create the ultimate GPT-based chatbot

We are introducing Clef and Clef-flash, open-source decision models hosted on Workers AI for high-speed classification and agentic workflows. Also launching: a new reinforcement learning platform that allows developers to fine-tune decision models using their own data.

Time seems simple. But we engineers lose sleep over something as basic as keeping clocks in sync. Here’s why…

On July 14th, 2025, Cloudflare made a change to our service topologies that caused an outage for 1.1.1.1 on the edge, resulting in downtime for 62 minutes for customers using the 1.1.1.1 public DNS Resolver as well as intermittent degradation of service for Gateway DNS.

We’re deeply sorry for this outage.

This outage was the result of an internal configuration error and not the result of an attack or a BGP hijack. In this blog post, we’re going to talk about what the failure was, why it occurred, and what we’re doing to make sure this doesn’t happen again.

Browser Rendering's new /crawl endpoint lets you submit a starting URL and automatically discover, render, and return content from an entire website as HTML, Markdown, or structured JSON.

Cloudflare's Status Page - Cloudflare Global Network experiencing issues.

We’re announcing the closed beta of a self-serve Cloudflare OHTTP Gateway. We’re also renaming our Privacy Gateway to Cloudflare OHTTP Relay to better distinguish the two products.

Cloudflare suffered a service outage on November 18, 2025. The outage was triggered by a bug in generation logic for a Bot Management feature file causing many Cloudflare services to be affected.

Localhost, meet the Internet. Turn the server on your laptop into a public, encrypted URL on Cloudflare's edge with one command.

A coding-agent skill for multi-phase security audits with independently verified, machine-readable findings - cloudflare/security-audit-skill

Multiple Cloudflare services, including Workers KV, Access, WARP and the Cloudflare dashboard, experienced an outage for up to 2 hours and 22 minutes on June 12, 2025.

Introduction

CMU CS Academy is an online, graphics-based computer science curriculum taught in Python provided by Carnegie Mellon University.

Software teams seeking to provide better products and services must focus on faster release cycles.