Sonnet 3.5

Claude 3.5 Sonnet is designed as the sweet spot in Anthropic’s lineup, combining responsiveness with depth. It follows instructions cleanly, explains its steps when problems get complex, and handles practical software tasks from code generation to debugging and refactoring. The model accepts images alongside text, so it can read documents, charts, and screenshots and ground answers in what it “sees.” Long-context handling lets it stay coherent across multi-document prompts or extended chats, while structured output modes and function calling make it easy to plug into agent workflows and retrieval. In day-to-day use, Sonnet delivers concise, reliable results with predictable latency; teams often pair it with a heavier model for the hardest reasoning cases, but keep Sonnet as the default engine for production because it balances quality, speed, and cost.