Anthropic 7/13 Claude Sonnet 4.5: mid-tier daily-driver with same $3/$15 pricing

Anthropic on 2026-07-13 publishes Claude Sonnet 4.5 as the mid-tier flagship (between Haiku 4.5 and Opus 4.5); 200K context, native tool-use with extended-thinking mode; pricing unchanged at $3 input / $15 output per million tokens. Self-reported figures: SWE-Bench Verified 67.4, GPQA-Diamond 74.8, MMLU-Pro 82.9, BFCL v3 63.7, Terminal-Bench 2.1 74.2. Deployment via API + claude.ai + Bedrock + Vertex AI.