Claude Sonnet 5.5 Explained: Pricing, Benchmarks, Terminal-Bench
Anthropic shipped Claude Sonnet 5.5 on Sept 28, 2026 at $2/$10 per million tokens. What changed vs Sonnet 5, sourced benchmarks, and when to pick it.
Claude Opus 5.5: Anthropic’s New Flagship, Benchmarked
Claude Opus 5.5 is Anthropic's Sept 2026 flagship: pricing, 1M context, verified Terminal-Bench/HLE scores, and honest gaps vs GPT-6 Astra.
Claude Opus 5 Explained: Architecture, Benchmarks and Deployment (2026)
Claude Opus 5 explained: Anthropic's 2026 frontier model - 1M-token context, effort toggle, 96% SWE-bench Verified, pricing, deployment and honest limits.
Claude 4.6 Agent Tool Use Patterns for Production (2026)
Production-ready agent patterns with Claude 4.6 — parallel tool calls, planning, memory, error recovery, and when sub-agents beat single-agent loops.