Anthropic:

Anthropic releases Claude Opus 4, which excels at coding, and Claude Sonnet 4, both hybrid models with near-instant responses and extended thinking  —  Today, we're introducing the next generation of Claude models: Claude Opus 4 and Claude Sonnet 4, setting new standards for coding, advanced reasoning, and AI agents.

Anthropic:

Anthropic releases Claude Opus 4, which excels at coding, and Claude Sonnet 4, both hybrid models with near-instant responses and extended thinking  —  Today, we're introducing the next generation of Claude models: Claude Opus 4 and Claude Sonnet 4, setting new standards for coding, advanced reasoning, and AI agents.

Source: TechMeme
Source Link: http://www.techmeme.com/250522/p30#a250522p30