What is the claude-sonnet-4 API used for?

claude-sonnet-4 is listed on Routin as a chat. Developers can evaluate its provider, context window, pricing fields and OpenAI-compatible access for production AI apps and agents.

Who provides claude-sonnet-4?

claude-sonnet-4 is associated with Anthropic in the Routin model catalog when provider metadata is available.

How do I call claude-sonnet-4 with an OpenAI-compatible client?

Create a Routin API key, set your OpenAI-compatible client base URL to the Routin API endpoint, and use claude-sonnet-4 as the model name when making chat, response or modality-specific requests supported by the model.

How is claude-sonnet-4 pricing evaluated?

Routin surfaces available pricing metadata for claude-sonnet-4, including input price, output price, billing unit, context tiers and cache-related prices when the provider exposes them.

claude-sonnet-4 API - Pricing, Context and OpenAI-Compatible Access

Routin

相关模型 / Related models

同系列或更低输入价的公开模型。 / Same provider or cheaper catalog alternatives.

Model	Provider	Type	Input	Output
claude-haiku-4-5	Anthropic	chat	1.00 Token / 1M tokens	5.00 Token / 1M tokens
claude-haiku-4-5-20251001	Anthropic	chat	1.00 Token / 1M tokens	5.00 Token / 1M tokens
claude-sonnet-5	Anthropic	chat	2.00 Token / 1M tokens	10.00 Token / 1M tokens
claude-opus-4-1-20250805	Anthropic	chat	3.00 Token / 1M tokens	15.00 Token / 1M tokens
claude-sonnet-4-20250514	Anthropic	chat	3.00 Token / 1M tokens

Context & Pricing

Published rates, tier transitions, and modality-specific surcharges in the current catalog entry.

Starting price: $0.7714/1M tokens

Pricing	Billing mode
Prompt	$0.7714/1M tokens
Output	$3.8571/1M tokens
5m cache write	$0.9643/1M tokens
Cache hit	$0.0771/1M tokens

Additional rates

No additional rate points published

claude-sonnet-4 API - Pricing, Context and OpenAI-Compatible Access | Routin Large Model Service Platform

Routin

claude-sonnet-4

相关模型 / Related models

常见问题 / FAQ