AI Model Brief: Claude Sonnet 4 & Claude Opus 4

Where I give you a quick overview of Claude 4's new capabilities and explain how these advances translate into practical legal use

May 24, 2025

∙ Paid

Illustration of Claude juggling several tasks in parallel

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A couple of new AI models have dropped from Anthropic. This brief is intended to give you the scoop about what’s it is, how you can use it, and how it will affect you.

Executive Summary

Model Name & Developer: Claude Sonnet 4 and Claude Opus 4, developed by Anthropic, released May 22, 2025

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