Claude Sonnet 5: Benchmarks, Pricing, and What the System Card Actually Says
Anthropic shipped Claude Sonnet 5 on June 30, 2026, and pitched it as the new default brain behind Claude’s Free and Pro plans: cheaper than Opus-class models, but agentic enough to plan multi-step tasks, run tools, and check its own work unasked. The launch post reads well. The reaction on Reddit and X was messier, … Read more