Anthropic Launches Claude 4 with Expanded Context and Enhanced Coding

Anthropic has released Claude 4, featuring dramatically improved capabilities for coding, analysis, and extended conversations. The update positions Claude as a serious competitor for complex professional workflows.

What's New in Claude 4

The latest version introduces several significant improvements. Context windows have expanded dramatically, allowing Claude to work with much longer documents and maintain coherent conversations over extended sessions. This addresses one of the biggest limitations of previous AI assistants.

Coding capabilities have received particular attention. Claude 4 can now handle complex multi-file projects, understand architectural patterns, and provide more nuanced debugging assistance. Early testers report that it catches subtle bugs that other AI tools miss.

Constitutional AI Improvements

Anthropic has also refined its Constitutional AI approach, which guides Claude's behavior through a set of principles. The result is responses that feel more natural while maintaining strong safety guardrails. Users report fewer frustrating refusals for legitimate requests.

Availability and Pricing

Claude 4 is available now through Anthropic's API and the Claude.ai interface. Professional and Team plans get immediate access to the most capable version, while free tier users will see gradual rollout over the coming weeks.

The release intensifies competition in the AI assistant space, giving users more powerful options for their daily workflows.