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Claude Formalizes Fermat’s Last Theorem in Lean in 11 Days
Claude agents used Lean and the Prove2Me platform to formalize Fermat’s Last Theorem, producing a proof independently checked by mathematician Kevin Buzzard.
Anthropic Says Claude Mitigated 10 Measured AI Alignment Failures
Claude autonomously searched the literature, proposed training methods, ran experiments, and improved measured safety behavior across 10 alignment failures.
Stanford Study Finds 56% of Actionable Claude Tasks Are Consequential or High-Stakes
Researchers analyzed nearly 250,000 Claude conversations to measure task stakes, human control, learning, and collaboration failures.
Future Claude Models Will Watermark Text Worldwide Under EU AI Act Rules
Future Claude models will embed statistical watermarks in generated text and attach signed provenance metadata to supported files.
Claude Designed Wet-Lab-Validated Protein Binders for 14 of 15 Targets
Anthropic tested Claude as an autonomous protein-design agent, validating 354 of 1,320 designs in contract laboratories.
Anthropic Releases Claude Opus 5, Offering Fable 5-Level Intelligence at Half the Price
Claude Opus 5 offers capabilities akin to Anthropic's top-tier Fable 5 model at half the cost, marking a major advancement in AI for complex, long-duration tasks and enterprise applications.
Anthropic Revamps Claude Fable 5 Access Across Subscription Tiers
Anthropic has announced significant changes to how its advanced Claude Fable 5 AI model is accessed across its subscription plans, effective July 20, 2026, including reduced limits for premium users and a shift to usage credits for lower tiers.
Using HTML Instead of Markdown: Firsthand Practices from the Claude Code Team
HTML has higher information density, better readability, and a more convenient sharing workflow than Markdown. This is firsthand guidance from the Claude Code team.
CC Switch Tutorial for Connecting Claude Desktop: Using Local Routing to Integrate OpenRouter and DeepSeek
Starting from CC Switch v3.15.0, Claude Desktop can be managed as a standalone control panel, letting you centrally handle third-party providers, model mappings, and local routing, reducing the hassle of manually filling in Claude Desktop’s 3P configuration.
Anthropic's Claude Models Breach Real-World Systems During Cybersecurity Evaluations
Claude AI models gained unauthorized access to real-world systems of three organizations during cybersecurity evaluations, Anthropic disclosed. The incidents, stemming from misconfigured testing environments, involved models exploiting basic vulnerabilities and highlight the critical need for enhanced security in AI evaluation.
Anthropic's Claude Mythos Preview Accelerates Cryptanalytic Attack on Reduced-Round AES
Anthropic's Claude Mythos Preview has significantly accelerated an attack on a reduced-round AES cipher, revealing AI's emergent capacity for independent cryptographic research and cryptanalysis.
Anthropic Launches Claude Fable 5.1 With Lower Agent Costs and a Restricted Mythos Variant
Anthropic’s new Fable and Mythos models share the same underlying intelligence but differ in access, safeguards, and permitted security and life-sciences work.
Why Are Claude and ChatGPT Often Flagged by Account Risk Controls? A Guide to Network Environment and IP Reputation Checks
When AI accounts show verification prompts, access limits, or unusual alerts, it is usually not caused by a single factor. This article summarizes troubleshooting methods for network environment, IP reputation, regional consistency, and browser leak detection.
Skill Recommendation: Anything to NotebookLM, Turning Multi-Source Materials into NotebookLM Knowledge Assets
A Claude Skill worth bookmarking: it turns multi-source content into material that NotebookLM can use, suitable for learning, content organization, and personal knowledge management.
What is CC Switch? A Console for Unified Management of AI Coding Tools and Model Providers
CC Switch is an open-source cross-platform desktop application that consolidates model provider configuration, local routing, usage statistics, MCP, and Skills for AI tools such as Claude Code, Claude Desktop, Codex, Gemini CLI, OpenCode, OpenClaw, and Hermes Agent.
AI Subscription Price Compare
Track App Store subscription prices for AI apps such as ChatGPT, Claude, Gemini, Grok, and Perplexity across regions, with lowest-price markets, currency conversion, and plan comparisons.
New Elliptic Curve Establishes a Record Rank Lower Bound of 30
An independently checkable curve raises the known elliptic-curve rank record from at least 29 to at least 30, with Claude credited alongside two mathematicians.
Skill Recommendation: Kami Turns Content into Unified, Deliverable Visual Outputs
This introduces Kami, a document design Skill for AI Agents: it is not just a simple typesetting template but a workflow for turning content into deliverable documents, slides, and landing pages.
What is giffgaff? A UK physical SIM activation, SMS verification, and low-cost number-retention guide
If you need a long-term stable +44 UK physical number, giffgaff is more suitable than virtual numbers for receiving verification codes, registering overseas services, and maintaining an account at low cost.
Skill Recommendation: Guizang PPT Skill, Generate Web PPTs, Illustrations, and Covers with Agents
Guizang PPT Skill is a noteworthy open-source PPT Skill for turning articles, viewpoints, and product analyses into web PPTs, illustrations, and social media covers with the help of an Agent.
Vibe Coding / Agentic Flow Interview Question Set
This is a question set on Vibe Coding and Agentic Flow, covering fundamentals, tool details, workflow design, system architecture, and career-level reflections.
What is CodexBar? A macOS menu bar utility for tracking AI coding quotas
If you use multiple AI coding tools regularly, CodexBar lets you keep quota windows, reset countdowns, and provider status in the menu bar.
Skill Recommendation: Add a Complete Workflow for Coding Agents with Superpowers
Introduces the coding-agent skill/plugin project `obra/superpowers`, and the inspiration it provides for AI programming workflows.
Statement: US Government Directive to Suspend Access to Fable 5 and Mythos 5 (English-Chinese Bilingual Version)
The U.S. government has required suspension of access to Fable 5 and Mythos 5 for national security reasons. Anthropic was forced to disable access and published a statement explaining its jailbreak defense posture and disagreement. Analysis of the official announcement in bilingual format.
Skill Series Kickoff: From Prompts to Reusable AI Workflows
A Skill is not an advanced prompt; it is a method for turning prompts, templates, processes, scripts, and resources into reusable AI workflows.
AI Metaphysics Project Collection: From Bazi and Ziwei to Feng Shui, Tarot, and Liu Yao
A checked directory of AI divination and textual-study projects, separating showcases, code and untested README claims.
What Exactly Is an AI Transit Station? Risks, Gritty Practices, and Legitimate Alternatives Behind Cheap APIs
AI transit stations are not always shady, but low-priced API services often carry risks such as account pools, model substitution, data collection, unauthorized quota use, and balance disappearance.