U2 Flash

Limited-time free · Free for new and existing users during the promotion

model id: u2-flash

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Overview

Text & Code

U2 Flash focuses on Agent and Coding scenarios, with strong complex reasoning, code generation, and task execution. It supports long context for complex engineering, long-horizon tasks, and multi-step Agent workflows—delivering faster inference and better cost efficiency as a high-performance, cost-effective foundation for developers and enterprises.

Input

Output

Pricing

Limited-time free

Input

￥1￥0

/M tokens

Input (cache hit)

￥0.2￥0

/M tokens

Output

￥2￥0

/M tokens

Rate Limits & Context

RPM100

Max input length512K

Context length512K

TPM10,000,000

Max output length128K

Quick Start

1. Call URL

OpenAI Compatiblehttps://maas-api.unisound.com/v1

Anthropic Compatiblehttps://maas-api.unisound.com/anthropic

2. Get API Key

3. Model Invocation

View API Docs

curl -X POST https://maas-api.unisound.com/v1/chat/completions \
 -H "Authorization: Bearer <api_key>" \
 -H "Content-Type: application/json" \
 -d '{
     "model": "u2-flash",
     "messages": [
         {"role": "user", "content": "Who are you?"}
     ]
 }'