Early Impressions of Claude Opus 4 and Using Tools with Extended Thinking

MacStories
By Federico ViticciMay 22, 2025, 12:57 pm418 pts
Claude Opus 4 and extended thinking with tools. For the past two days, I’ve been testing an early access version of Claude Opus 4, the latest model by Anthropic that was just announced today. You can read more about the model in the official blog post and find additional documentation here. What follows is a…

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