Anthropic’s powerful Claude Sonnet 4.6

Anthropic just rolled out Claude Sonnet 4.6, its latest mid tier model that matches or beats the flagship Opus 4.6 across finance, computer use, coding, and office benchmarks at 1/5 of the price while featuring a 1M token context window.

On SWE-Bench Verified for coding, Sonnet 4.6 came in at 79.6%, just below Opus 4.6's 80.8% while costing just 1/5 as much to run.

Sonnet 4.6 outscored Opus 4.6 on agentic financial analysis and office task benchmarks, a first for the mid tier Claude model.

Early Claude Code testers preferred Sonnet 4.6 over its predecessor 70% of the time, also winning over Opus 4.5 at a 59% rate.

Computer use capabilities also keep climbing, with Sonnet’s OSWorld scores jumping from under 15% in late 2024 to 72.5%.