
• The Claude 4 family centers on two core models, Opus 4 and Sonnet 4, designed as a high‑depth vs balanced‑throughput pair that cleanly routes complex reasoning to Opus and high‑volume tasks to Sonnet. The split is practical for production routing without changing integration patterns.
• Both models support vision, multilingual IO, long‑context workflows, and hybrid operation modes: fast responses by default with optional extended thinking for deeper chains.
• Sonnet 4 emphasizes efficiency, latency, and cost predictability for daily coding, support, and agent sub‑tasks; Opus 4 targets long‑running, multi‑step reasoning, codebase‑scale refactors, and research‑style synthesis with stronger step‑by‑step reasoning. Review collected by and hosted on G2.com.
• Opus 4’s higher output costs and extended thinking can increase spend and latency on verbose sessions; strict token governance and mode gating are necessary.
• Tool use and file access amplify the need for sandboxing, scoped permissions, and audit trails to manage operational risk in agentic pipelines. Review collected by and hosted on G2.com.
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