Summary: Claude Opus 4.1 launched.

Why It Matters: A new, smarter version of Claude is out.

What Changed:

• Add "Max plan" to the navigation menu.
• Remove "Education plan" from the navigation menu.
• Add "Education," "Financial services," and "Government" to the "Solutions" section.
• Update "Claude Opus 4" to "Claude Opus 4.1" in the "Research" section.
• Add a new main section about "AI research and products that put safety at the frontier."
• Add a new main section about "Claude.ai" and "Claude Opus 4.1."
• Add a new main section about "API" and building with Claude.
• Add a new main section about "Claude Opus 4.1 and Sonnet 4."
• Add new "Model details" sections for "Opus 4.1" and "Sonnet 4."
• Update the text for "Core Views on AI Safety" and "Anthropic’s Responsible Scaling Policy" links.
• Update the text for "Anthropic Academy: Learn to build with Claude" link.
• Add new featured items: "Claude Sonnet 4 with 1M context," "Claude Opus 4.1," "Project Vend," "Agentic Misalignment," and "Introducing Claude 4."
• Remove featured items: "Economic Index," "Claude’s extended thinking," "Alignment faking in large language models," and "Introducing the Model Context Protocol."
• Remove "Education plan" from the footer.
• Add "MCP Integrations" and "Partner Directory" to the footer.