This report introduces new metrics of AI usage to provide a rich portrait of interactions with Claude in November 2025, just prior to the release of Opus 4.5. These “primitives”—simple, foundational measures of how Claude is used, which we generate by asking Claude specific questions about anonymized Claude.ai and first-party (1P) API transcripts—cover five dimensions relevant to AI’s economic impact: user and AI skills, how complex tasks are, the degree of autonomy afforded to Claude, how successful Claude is, and whether Claude is used for personal, educational, or work purposes. The results
Anthropic Economic Index report: Economic primitives… We’ll ask Claude users about if AI is changing their work today—which tasks they may be handing off, if they’re seeing productivity gains, what shifts they may be observing in hiring and roles—their expectations for the future, and what they hope a well-handled transition looks like. …
… Within the US, lower usage states have relatively faster gains in adoption Within the US, usage per capita remains largely shaped by how well-matched the workforce is to broader Claude usage: For example, states with a larger share of workers in computer and mathematical occupations tend to have hi… …
… Overall, many acknowledge deep uncertainty: “I have very low confidence in what specific skills I think will be useful in the future.” A team lead said: “Nobody knows what's going to happen… the important thing is to just be really adaptable.” Claude Code usage trends The survey and interview data … …
… AI-driven AI R&D holds within itself the potential for significant danger. As policymakers assess the levers they can pull, it will be crucial to understand how the rate of AI progress is changing, and whether AI research might start to see a compounding return. …
Economic Research Labor market impacts of AI: A new measure and early evidence Mar 5, 2026 Read in PDF Key findings We introduce a new measure of AI displacement risk, observed exposure , that combines theoretical LLM capability and real-world usage data, weighting automated rather than augmentativ… …
… Anthropic banned these accounts from using Claude for violating our Usage Policy . …
Policy Frontier Red Team Building AI for cyber defenders Oct 3, 2025 AI models are now useful for cybersecurity tasks in practice, not just theory. …
… An overview of approaches for understanding AI agent performance Method Pros Cons Automated evals Running tests programmatically without real users Faster iteration Fully reproducible No user impact Can run on every commit Tests scenarios at scale without requiring a prod deployment Requires more u… …
… Pattern 1: The ephemeral container claude.ai code execution Though best known as a chat interface, claude.ai also writes and runs code, generates files, and calls connectors. When Claude runs code inside claude.ai, it does so in a gVisor container on isolated infrastructure. …