Anthropic

Claude Sonnet 4

claude-sonnet-4-0

A balanced model for coding, analysis, agent workflows, and cost control

Balanced Claude model for coding, analysis, agent workflows, and cost control

200K context200K context
Released2025-05-22
Relays14 sites
code generationreasoningtool use

Model information

Model ID
claude-sonnet-4-0
Context
200K
Max input
-
Max output
64K
Knowledge cutoff
2025-03-31
Open weights
Not supported
License
-
Release date
2025-05-22

Input

Text: SupportedImage: SupportedAudio: Not supportedVideo: Not supportedPDF: SupportedFile: Supported

Output

Text: SupportedImage: Not supportedAudio: Not supportedVideo: Not supported

API capabilities

Reasoning: SupportedTool call: SupportedStructured output: UnknownTemperature: Supported

Relay Comparison

Compare token, per-request, or per-second pricing by relay channel.

How should Claude Sonnet 4 relay pricing be compared?

This Claude Sonnet 4 pricing page compares official pricing with public prices from 14 listed AI gateways. Token prices are shown in CNY per 1M tokens, while per-request, per-second, and per-character rows use the unit shown in the table. Last updated: 10/23/2026, 08:16.

Data sources
Public price catalogs, official pricing records, and monitoring results.
Metric definitions
Uptime means successful probe response rate, fake-rate signals possible model mismatch or abnormal output risk, and latency is average API response time.
Risk note
Relay gateways are third-party services. Pricing, billing, privacy, and stability can change; start with a small top-up and verify reliability before continued use.