Anthropic’s new Claude Sonnet 4.6 scores 79.6% on SWE-Bench Verified (vs Opus 4.6’s 80.8%), outperforms Opus on agentic financial analysis and office benchmarks, and adds a 1M token context window — all at one-fifth the price. Claude Code testers preferred it over its predecessor 70% of the time. With Chinese models undercutting on price, Sonnet 4.6 looks like Anthropic’s bid to dominate the volume layer of the agentic boom. Via The Rundown AI. Read more