Anthropic has held Claude Sonnet output pricing steady at $10 per million tokens through the Sonnet 5 and 5.5 releases in 2026, canceling an earlier planned hike to $15 while delivering efficiency gains that cut effective task costs up to 30 percent via fewer tokens and faster inference. Recent October cache-read reductions to $0.10 per million tokens further lowered agentic workload expenses by about 20 percent without altering headline rates. Competitive pressure from lower-priced rivals and batch discounts of 50 percent continue to shape trader views on whether Anthropic will introduce direct output price cuts or rely on performance improvements to defend its mid-tier positioning through year-end.