Understanding Claude Capybara Hierarchy: A Must-Read Guide for Newcomers to Anthropic’s 4-Tier Model System, Grasping the Complete Selection Logic from Haiku to Capybara in 3 Minutes
If you've been keeping up with AI news, you've probably seen the term "Claude Capybara." This is Anthropic's fourth model tier, added above Opus, representing the current highest level of AI capability. On March 26, 2026, an accidental data leak prematurely revealed Claude Mythos, the first model in the Capybara tier, sending shockwaves through the…
