Claude

claude-sonnet-5-5

Model ID:claude-sonnet-5-5

FlagshipStreaming

Context window	1m
Input (CNY / Million Tokens)	¥9
Output (CNY / million tokens)	¥45
Cache read (CNY / million tokens)	¥0
Cache write (1h, yuan / million tokens)	¥20

Prices by channel

Channel	Input	Output	Read Cache	Cache hit	Cache Write (1h)	Cache write (5m)	Multiplier
聚合/反代节点1	¥9	¥45	¥0	¥0.9	¥20	¥11	1.00x

Call example

This model belongs to theClaudegroup, calling protocol:Anthropic Messages native protocolEnter your API Key to use; groups determine the entry point and cannot be mixed (e.g., models in the Gemini group cannot use /v1/messages).

Request examplecurl

curl https://www.relay-api.com/v1/messages \
  -H "x-api-key: sk-你的Key" \
  -H "anthropic-version: 2023-06-01" \
  -H "content-type: application/json" \
  -d '{
    "model": "claude-sonnet-5-5",
    "max_tokens": 1024,
    "messages": [
      { "role": "user", "content": "你好，请简单介绍一下自己" }
    ]
  }'

Back to examplesJSON

{
  "id": "msg_01abcDEF...",
  "type": "message",
  "role": "assistant",
  "model": "claude-sonnet-5-5",
  "content": [
    { "type": "text", "text": "你好！我是 claude-sonnet-5-5，很高兴为你服务。\n\n有什么可以帮你？" }
  ],
  "stop_reason": "end_turn",
  "usage": {
    "input_tokens": 303,
    "output_tokens": 73
  }
}

Tool Integration Tutorial

Use this model with your usual AI coding tool, billed per token.

Claude Code Proxy Connection Tutorial: Terminal Agent and Base URL Configuration

Tutorial for connecting the official Anthropic terminal coding agent (Claude Code): installation, setting ANTHROPIC_BASE_URL and API keys, switching models, and troubleshooting.

CC Reverse Proxy Access Guide: Connect Claude Code and Codex via the Same Gateway

Using local reverse proxies like cc-switch or claude-code-proxy, you can forward Claude Code (Anthropic) and Codex (OpenAI) to our gateway with a single key and unified billing.

Tutorial: Connecting Cline to a Relay API for VS Code

Tutorial for setting up the open-source VS Code coding agent Cline: creating sk- keys and configuring the API Provider and Base URL to use Claude, GPT, or Gemini models.

Cursor API Proxy Integration Guide: Custom Base URL Configuration

Configure a custom API Key and Base URL in Cursor's Settings → Models to use Claude, GPT, or Gemini models with your site-issued key.

RikkaHub Transit API Tutorial: Configuring your Android AI Chat Client

RikkaHub (Open-source Android AI chat client) tutorial: Create an sk- key, select the Provider type based on the model group, configure the Base URL, and easily call Gemini / Claude / GPT models.

View all model pricing Integration Documentation