Anthropic lança Claude Opus 5.5 com preços 20% menores e saída mais rápida

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A Anthropic lançou o Claude Opus 5.5 em 22 de setembro de 2026, e desenvolvedores que usam a API só precisam trocar o ID do modelo de claude-opus-5 para claude-opus-5-5. O novo modelo custa 20% menos por token tanto na entrada quanto na saída, com um limite de 128.000 tokens por resposta. A empresa afirma que ele gera respostas 30% mais rápido e foi projetado para manter uma tarefa por 18 horas ou mais. O artigo alerta que a economia total informada de 40% não decorre apenas do corte de preço, dependendo também do uso mais eficiente de tokens, que varia conforme a carga de trabalho, e recomenda refazer testes com tráfego real.

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