Claude Sonnet 4.6

anthropic/claude-sonnet-4.6

Claude Sonnet 4.6 is the most capable Sonnet-class model yet, with frontier performance across coding, agents, and professional work. It excels at iterative development, complex codebase navigation, end-to-end project management with memory, polished document creation, and confident computer use for web QA and workflow automation.

File InputReasoningTool UseVision (Image)Explicit Caching
index.ts
import { streamText } from 'ai'
const result = streamText({
model: 'anthropic/claude-sonnet-4.6',
prompt: 'Why is the sky blue?'
})