Claude Sonnet 5.5 API pricing and integration guide

Current prices and model reference

Model ID

claude-sonnet-5.5

Documented context

1M

Documented image input

Supported

Live model multiplier

10×

Input price

¥4 / 1M tokens

Output price

¥20 / 1M tokens

Prices are in CNY. A 1× multiplier equals CNY 0.4 per million input tokens. Output and cache charges follow the billing configuration; your usage record is authoritative.

When to consider this model

This gateway lists the route with the same documented capabilities as Sonnet 5, for everyday development, code review, reasoning, writing, and multi-step agents. Compare quality, latency, and cost on the same tasks.

How to evaluate it

Set your client model ID to claude-sonnet-5.5. Validate a short text request, then test code, images, and multi-turn tool workflows while tracking output quality, latency, and billing.

What to check before integration

Sonnet 5 and Sonnet 5.5 have separate route IDs. The public reference and live catalog both list 10x (CNY 4 / 1M tokens). Context and vision metadata follow Sonnet 5; confirm capabilities and final billing with real requests and the ledger.

Client configuration

In a client supporting a custom API endpoint, enter this base URL and model ID with your own API key. Select the protocol described in the client tutorial and validate a short request first.

Base URL: https://api.llm-token.cn/v1
Model ID: claude-sonnet-5.5