Summary: Claude Opus 4.1 and Sonnet 4 launched

Why It Matters: New, more powerful Claude models are available.

What Changed:

• Add "Max plan" to Claude overview.
• Remove "Education plan" from Claude overview.
• Update "Claude model family" to include "Claude Opus 4.1", "Claude Sonnet 4", and "Claude Haiku 3.5".
• Remove "Claude 3.7 Sonnet", "Claude 3.5 Haiku", and "Claude 3 Opus" from Claude model family.
• Update "Meet Claude 3.7 Sonnet" to "Meet Claude Opus 4.1".
• Add new section about "Claude Opus 4.1 and Sonnet 4".
• Update "Core Views on AI Safety" link text.
• Update "Anthropic’s Responsible Scaling Policy" link text.
• Update "Anthropic Academy: Learn to build with Claude" link text.
• Add new featured items: "Claude Sonnet 4 with 1M context", "Claude Opus 4.1", "Project Vend", "Agentic Misalignment", "Introducing Claude 4".
• Remove featured items: "Interpretability Mar 27, 2025", "Societal impacts Mar 27, 2025", "ProductFeb 24, 2025", "Product Feb 24, 2025", "Alignment science Dec 18, 2024", "ProductNov 25, 2024".
• Add "Education", "Financial services", "Government" to Solutions.
• Add "Startups program" to Explore section.

What To Do:

• Launch new versions of your AI models.
• Update your website to show new product plans.

Verify Changes:

• View historical snapshot (2025-05-20)
• View recent snapshot