Anthropics balanced workhorse — near-Opus quality at a fraction of the latency and cost.
Claude Sonnet is the model most people should actually use day-to-day. It delivers close to Opus-level quality on the tasks that make up 90% of real work — drafting, coding, summarizing, brainstorming — at a fraction of the latency and cost. In 2026 Sonnet is the default in Claude.ai, the engine behind most Claude Code sessions, and the sweet spot for API builders who need throughput without sacrificing too much quality.
Who it's for: Knowledge workers, developers, and API builders who want the best speed-to-quality ratio.
Sub-second first-token latency for interactive chat and coding.
Handles most tasks at near-flagship quality.
Powers Claude Code and most agentic workflows.
Best price-per-token for production workloads.
Sonnet is the model I would put in front of a normal user by default. It is fast, cheap enough to use all day, and smart enough for almost everything. Reach for Opus only when the task is genuinely hard; reach for Sonnet for everything else.