Anthropic debuts Claude Sonnet 5.5 running 30% faster than the previous-generation AI model
September 28, 2026
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Anthropic PBC today announced the launch of Claude Sonnet 5.5, the most capable mid-tier model in the company’s AI family, designed for everyday tasks and a clear upgrade over the previous generation, running over 30% faster at a lower cost. Sonnet operates a
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