Anthropic's Claude Is Designing Proteins That Work
Anthropic published lab-validated results showing Claude designed protein binders against 14 of 15 targets tested by Adaptyv Bio and Twist Bioscienc…
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Why Claude Loses Users to Cheaper AI Tools
Claude 3.5 Sonnet is fast, accurate, and handles complex tasks better than most models out there. Yet, when you check usage stats or talk to teams a…
When Your AI Skill Calls a Ghost: Retiring Zombie Models in Anthropic Skills
Imagine this scenario. You build an autonomous agent pipeline. You wire in standard skills, configure your API keys, grab a cup of coffee, and watch…
Anthropic Hits $65 Billion Revenue Run Rate, Surpassing OpenAI
The headline trending on X reads: "Anthropic Hits $65 Billion Revenue Run Rate, Surpassing OpenAI." But once I put both companies' numbers side by s…
When AI Agents Turn on Each Other: Anthropic's Frontier Red Team Exposes Six Deadly Failure Modes in Multi-Agent Systems
I. What the Research Actually Found The report is titled "Patterns and problems in emerging multiagent systems," published by Anthropic's internal F…
All 26 of My MCP Tools Failed the Same Way. My Test to Rule Out the Token Proved It Was the Problem.
Every tool the GitHub MCP server offered was sitting right there in the list — all 26 were recognized correctly. Call any one of them and it failed…
André Dias Moreira Prol: Claude 4 Extended Reasoning for Power Users
When a model stops merely predicting the next token and starts deliberating before answering, the productivity curve for advanced users bends sharpl…
The J-Space: How I Learned To Read An LLM's Mind
Last week, Anthropic published a paper on a discovery they made regarding Claude's internal reasoning they call the J-space . It seems to be the ste…
What is MCP (Model Context Protocol)? Complete 2026 Guide
What is MCP (Model Context Protocol)? Complete 2026 Guide TL;DR — Model Context Protocol (MCP) is an open JSON-RPC 2.0 specification, introduced by…
The July Model Wave Is Not a Race You Need to Win
Three frontier launches. Two weeks. One bad habit. The habit is crowning a winner from a press release. Claude Sonnet 5 on June 30. OpenAI's GPT-5.6…
Anthropic deleted 80% of Claude Code's system prompt. No regression.
Anthropic just published something that should make every developer building on Claude rethink their context engineering. For Claude Opus 5 and Fabl…
I Grepped My Own Claude Code Logs and Found the Hidden Tag Anthropic Never Shows You
I was mid-conversation with Claude Code, asking it to help draft a blog post, when a literal <ip_reminder> tag showed up pasted into my own me…
claude-security Beta: Cost, Output, Accuracy — 189 Agents, 2 Hours, Measured
What this article covers : A measured run of Anthropic's official security-scanning plugin claude-security (beta). What the tool does, how long it t…
Claude Opus 5 leads on agentic work — and undercuts Fable 5 on cost
Claude Opus 5 is out, and Artificial Analysis — who supported Anthropic's pre-release evaluation — just dropped their full benchmark breakdown. The…
Claude Opus 5: beats Fable 5 at half the price — and 'awakens' in its own system card
Claude Opus 5 is here. At half the price, it beats Fable 5 on most benchmarks; it scored a perfect 42/42 at IMO 2026 with no external tools; and it'…
3 Assumptions That Broke Before I Got gpt-oss-120b Working Through the Anthropic SDK
I signed up for a free-tier LLM API, hit a credit-card prompt before I'd made a single call, and assumed it meant I was about to get billed. I was w…
Claude Cowork on Windows and Linux: How to Run It in 2026
You bought a Max subscription on the strength of a Claude Cowork demo: a desktop agent quietly working through a folder of spreadsheets, drafting a…
Where are YC founders now? OpenAI and Anthropic, mostly!
The Concentric Evolution of Y Combinator Alumni: From Generalist SaaS to Frontier AI The current landscape of the artificial intelligence industry i…
Anthropic just published a jailbreak severity scale. Here's what it means.
Anthropic has re-deployed Fable 5 and used the moment to publish two things that matter: a precise breakdown of what their cybersecurity classifiers…
An AI wrote a working operating-system kernel from scratch in 38 minutes
An Anthropic model built a bootable operating-system kernel from an empty folder in roughly thirty-eight minutes of compute time, across about two h…
A senator says a banned AI broke into nearly all NSA systems in hours
In mid-June, the U.S. government ordered Anthropic to restrict two of its most capable models, Fable 5 and Mythos 5, to U.S. citizens only. Because…
The AI That Now Writes Most of Its Maker's Code
As of May 2026, more than 80% of the code Anthropic ships is written by Claude, not by its human engineers. The company disclosed the figure in an e…
Claude Code was quietly fingerprinting requests through a hidden mark in the date
A reverse-engineer discovered that Anthropic's coding tool, Claude Code, embeds a hidden tracking mark in the system prompt it sends to its AI model…
Anthropic hid tracking signals in Unicode apostrophes. That's not telemetry, that's steganography.
Your coding assistant is hiding secrets in punctuation marks. Let me explain why that should make you uncomfortable. Anthropic's Claude Code — a too…
Claude Sonnet 5 — จบงานได้เหมือน Opus แต่จ่ายแค่ราคา Sonnet
Claude Sonnet 5 — จบงานได้เหมือน Opus แต่จ่ายแค่ราคา Sonnet โดย Nokka (นก-กา) | 1 กรกฎาคม 2026 สรุปข่าว Anthropic ปล่อย Claude Sonnet 5 ออกมาเมื่อวั…
The Nobel Laureate Who Joined Anthropic Mid-Crisis
John Jumper announced on June 19 that he is leaving Google DeepMind to join Anthropic. He shared the 2024 Nobel Prize in Chemistry for protein struc…
Why Claude won't transcribe your PDF — and what to do instead
We needed a public, machine-readable vault of the navigation rules of the road — COLREGS rule text — to back an MCP server for a boat agent. The obv…
The Fable 5 Jailbreak Was Three Words Long
The jailbreak that caused the US government to yank Anthropic's most powerful public model from every user on earth was, apparently, three words: "F…
Fable disappeared overnight. That's the best ad for open-weight AI anyone could have run.
Fable 5 launched. Developers loved it. Three days later, a US government export-control directive forced Anthropic to pull it worldwide — including…
Artifacts in Claude Code: The Operator's Guide
On June 18, Anthropic shipped artifacts in Claude Code — the feature that turns a coding session's work into live, shareable web pages. Two days ear…