Claude Haiku 4.5
Claude Haiku 4.5 matches Claude Sonnet 4's performance on coding, computer use, and agent tasks at substantially lower cost and faster speeds, making it a high-capability model in the Haiku line for high-throughput agentic deployments.
import { streamText } from 'ai'
const result = streamText({ model: 'anthropic/claude-haiku-4.5', prompt: 'Why is the sky blue?'})