Why Did Anthropic Kill Its Best Model? The Untold Story Behind Claude Opus 4's Disappearance
By Till Tomczak | timelapse.news | February 28, 2026 If you open Claude's model selector today, you'll find something strange. Claude Opus 3 — released in March 2024 — is still available. So is Sonnet 4. But Claude Opus 4 and Opus 4.1, arguably the most capable and