Sonnet 5.5 runs over 30% faster than Sonnet 5 and targets well-scoped tasks and bug fixing, with Haiku 5.5 due in weeks, which informs model selection for AI agentAn AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.Full definition → workloads.
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AI agent — An AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.