Claude Opus 5 vs Sonnet 5: Benchmarks, Pricing & Which to Use (July 2026)
A head-to-head comparison of Claude Opus 5 and Claude Sonnet 5: benchmark deltas, pricing tiers, feature differences, and a practical decision framework. Opus 5 leads on complex reasoning and agentic coding; Sonnet 5 delivers strong everyday performance at lower cost. Includes use-case breakdowns, competition context, and FAQ.
