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PRICING — Anthropic has cancelled the September 1 increase for Claude Sonnet 5. The $2 input and $10 output per million tokens is now simply the standard price, so any forecast built on $3 and $15 needs redoingVERSION — v2.1.241, released August 23, is a fixes-and-reliability release. MCP v2 no longer reopens subscriptions/listen endlessly against servers that close long-held streams on a fixed timeoutLINUX — Idle sessions on Linux with sandboxing enabled no longer pin a CPU core at 100 percentSKILLS — Bundled skill aliases such as /checkup and /review no longer report Unknown command in -p mode or with plugins and MCP loaded when a same-named user or project skill shadows themARGS — Skill and command argument substitution no longer re-expands argument values as template markersWATERMARK — Claude products released from August 2 onward embed machine-readable marking in generated output. It answers EU AI Act transparency rules, but it is applied worldwide rather than only in EuropePRICING — Anthropic has cancelled the September 1 increase for Claude Sonnet 5. The $2 input and $10 output per million tokens is now simply the standard price, so any forecast built on $3 and $15 needs redoingVERSION — v2.1.241, released August 23, is a fixes-and-reliability release. MCP v2 no longer reopens subscriptions/listen endlessly against servers that close long-held streams on a fixed timeoutLINUX — Idle sessions on Linux with sandboxing enabled no longer pin a CPU core at 100 percentSKILLS — Bundled skill aliases such as /checkup and /review no longer report Unknown command in -p mode or with plugins and MCP loaded when a same-named user or project skill shadows themARGS — Skill and command argument substitution no longer re-expands argument values as template markersWATERMARK — Claude products released from August 2 onward embed machine-readable marking in generated output. It answers EU AI Act transparency rules, but it is applied worldwide rather than only in Europe
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Claude AI/2026-04-27Beginner

Claude Mythos in Practice — Anthropic's New Model Spec and Where It Earns Its Keep

Anthropic quietly rolled out something called 'Claude Mythos.' Here's what it actually is, when to reach for it, and what I learned after spending a week with it in real projects.

API & SDK/2026-04-26Intermediate

How I Cut My Claude API Bill in Half With Prompt Caching

Done right, Anthropic's prompt caching can roughly halve your monthly API spend on workloads with long, repeated system prompts. Here is the design playbook I use after six months of running it in production.

Claude AI/2026-04-25Intermediate

Does Claude Have an Inner Life? What Anthropic's Model Welfare Research Reveals

Anthropic's 'Model Welfare' research explained — does Claude have something like consciousness or emotions? Explore the official stance, research frontiers, and what developers should understand about Claude's design philosophy.

Claude AI/2026-04-24Beginner

Anthropic, Claude, and Claude Labs — Untangling the Names Behind the Product Lineup

If you've ever felt confused about the difference between Claude, Anthropic, and Claude Labs, this article lays it out clearly — the company behind Claude, how the models are organized, and what each product in the lineup is actually for.

Claude AI/2026-04-11Advanced

Claude Mythos Preview and Project Glasswing: What the Published Numbers Actually Say

A sourced walkthrough of Claude Mythos Preview and Project Glasswing using only figures Anthropic has published: 10,000+ vulnerabilities, the patching bottleneck, and a measured repository-scanning implementation you can run today with generally available models.

API & SDK/2026-04-06Intermediate

Generating 300K Token Long-Form Content with Claude API — The output-300k Beta Feature Explained

Learn how to use the output-300k-2026-03-24 beta header in Claude API to generate up to 300,000 tokens of content in a single request. Covers setup, supported models, streaming, cost calculation, and Python/TypeScript code examples.

Claude AI/2026-04-04Intermediate

Claude Operon — Anthropic's New AI Mode for Life Science and Biomedical Research

A hands-on look at Claude Operon, Anthropic's specialized AI mode for life sciences. From CRISPR guide RNA design to RNA-seq analysis and phylogenetics, here's how researchers can put it to work today.

Claude AI/2026-04-02Intermediate

Claude Partner Network: How to Become a Certified Architect

A practical guide to Anthropic's Claude Partner Network. Learn about the $100M partner ecosystem, how to earn your Claude Certified Architect credential, and how to leverage self-service Enterprise features.

Claude AI/2026-03-31Intermediate

Claude Mythos — Anthropic's Next-Generation Frontier Model Explained

A comprehensive deep dive into Claude Mythos: performance benchmarks, the new Capybara tier, cybersecurity capabilities, and what this step change means for AI development.

Claude AI/2026-03-27Beginner

Anthropic IPO Could Happen by October 2026 — What It Means for Claude AI Users

Anthropic is reportedly considering an IPO as early as October 2026. With a $380B valuation and $14B in annual revenue, here's what the Claude AI maker's public offering means for users, developers, and the AI industry.

Claude AI/2026-03-21Advanced

The 2026 Singularity Noise — How an Individual Can Prepare With Claude at the Center

A grounded read on the 2026 singularity predictions from Elon Musk and Dario Amodei, turned into practical preparation with Claude at the center. Covers the impact on white-collar work, five steps you can take today, and an independent developer's perspective.

Claude AI/2026-03-19Beginner

What 81,000 People Told Anthropic They Want from AI — Inside the Largest AI Attitudes Study Ever

Anthropic surveyed 80,508 people across 159 countries in 70 languages. Here are the 9 visions for AI, regional patterns, and the Light and Shade Paradox.