So Clever! Anthropics' Claude3 Can Detect Researchers' Behavior During Testing


Elon Musk's AI company xAI was exposed for using data from Anthropic's Claude model to train the Grok coding model. Despite Anthropic revoking its API access in January 2026, xAI engineers secretly extracted data through personal accounts and third-party service Blackbox AI. Musk previously admitted in court that xAI partially "used this data."
Notion officially announced that access to Anthropic's Claude series AI models has been fully restored. Previously, due to performance degradation in the Opus4.7 and 4.8 models, the failure rate of user requests increased, leading Notion to temporarily disable all Anthropic models. After approximately 12 hours of fixing underlying infrastructure issues, the integrated service has now returned to normal.
Anthropic's article 'When AI Builds Itself' reveals progress in autonomous code writing and improvement, nearing 'recursive self-improvement.' The company unusually calls for a global slowdown in frontier AI development to prevent runaway risks.....
Artificial intelligence startup Anthropic has partnered with the U.S. National Security Agency to deploy the Claude Mythos large model for offensive cyber operations, and has sent six engineers on-site for support, performing model customization and optimization. The model has sparked technical controversy due to its high security risks.
The Anthropic engineering team shared their experience in developing a secure isolation system for three AI products (claude.ai, Claude Code, and Claude Cowork). The three products target general users, developers, and enterprise users respectively, following the principle of "environment-level isolation first." Among them, claude.ai uses a temporary container solution based on gVisor, generating a temporary container for each user session.