Anthropic releases a more autonomous Claude Sonnet 5
Sonnet 5 brought stronger planning, browser and terminal use, and sustained task completion to a cheaper, widely available model tier.
TOWARD DOOM76confidence 94/100
Why it moved the index
Capable computer use and longer autonomous follow-through became cheaper and available across all plans, increasing practical diffusion.
AUDIT TRAIL
Assessment history
- R1Toward 76 · confidence 94
Initial source-backed launch assessment
11 Aug 2026