Anthropic has finally released the much-anticipated Claude 4 AI models. This release includes two new models:
Claude Opus 4
This is the world’s best coding model, with sustained performance on complex, long-running tasks and agent workflows. 
Claude Sonnet 4
This is a significant upgrade to Claude Sonnet 3.7, delivering superior coding and reasoning while responding more precisely to your instructions. Claude 3.7 Sonnet has been a go-to coding model in Cursor AI for months, outperforming Gemini Pro and exhibiting more efficient bug fixes. The introduction of Claude 4 raises curiosity about its impact on ongoing side projects.
New Capabilities
Aside from the new model announcement, Anthropic also shared a couple of new capabilities: 
- Extended thinking with tool use (beta): Claude can now switch between thinking and using tools like web search to enhance responses.
- New model capabilities: Claude can now simultaneously use tools, follow instructions more accurately, and recall key facts from local files to enhance performance over time.
- Claude Code: Open to all developers, providing support for background tasks through GitHub Actions and offering built-in tools for VS Code and JetBrains to aid coding directly in your files.
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