Addy Osmani

@addyosmani

Engineering & DevRel Leader, Prev: Director @GoogleCloud AI/Gemini ✨, @GoogleChrome • Author • Known: @ChromeDevTools, Agent Skills, Core Web Vitals, TodoMVC

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Claude Opus 5.5 launches with promised running costs 40% below Opus 5

Anthropic says Opus 5.5 performs at Claude Fable 5.1's level for most tasks. Every reports strong visual results from a week of testing, but recommends setting a budget and a clear stopping point.

129 Sources, 16d ago, updated 16d ago

Claude reportedly writes 80% of Anthropic's code

A post linking to Anthropic's blog says engineers ship 8x more code per quarter, tests grew 10x and continuous integration jobs rose 25x in six months.