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LongCat Flash Chat

LongCat Flash Chat is Meituan's 560B Mixture-of-Experts (MoE) conversational model that activates roughly 27B parameters per token on average. It targets high-throughput agentic tool use and complex multi-step interactions under an MIT license.

Tool Use
index.ts
import { streamText } from 'ai'


const result = streamText({
  model: 'meituan/longcat-flash-chat',
  prompt: 'Why is the sky blue?'
})
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Playground

Try out LongCat Flash Chat by Meituan. Usage is billed to your team at API rates. Free users (those who haven't made a payment) get $5 of credits every 30 days.