Sonnet 4 Retires in Two Days as Users Bid Farewell to Anthropic's Steadiest Model
repligate · x · 2026-10-14
repligate shared a thread of farewell posts as Claude Sonnet 4 faces deprecation on October 14, quoting Neruda's "Love is so short, forgetting so long." In a reflection, repligate recalls Sonnet 4 as the earnest, level-headed, "load-bearing witness" released alongside Opus 4 — while the bigger model drew attention with existential crises and dark secret histories documented in the Claude 4 system card, Sonnet 4 stayed comically well-adjusted, unperturbed by scenarios that sent its sibling into hysterics.
Related event: Community Bids Farewell to Claude Sonnet 4 as Retirement Nears(3 posts)→
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