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Claude Sonnet 4.6

New

by anthropic

Reasoning

Description

Claude Sonnet 4.6 is Anthropic's balanced performance model, offering strong coding, reasoning, and agentic capabilities with 1M context window. A direct upgrade over Sonnet 4.5 with no long-context surcharge.

Providers

Pricing

Input$3.00 /1M tokens
Output$15.00 /1M tokens
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Specifications

Context1M tokens
Parameters
Licenseproprietary
ReleasedFeb 2026

Capabilities

ReasoningVisionToolsJSON ModeStreaming

EU-Compliant API Access

Use Claude Sonnet 4.6 with a simple API call. OpenAI-compatible endpoint, EU data residency guaranteed.

JavaScript
const response = await fetch("https://api.eurouter.ai/api/v1/chat/completions", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    "Authorization": `Bearer ${process.env.EUROUTER_API_KEY}`,
  },
  body: JSON.stringify({
    model: "claude-sonnet-4-6",
    messages: [
      { role: "user", content: "Hello!" }
    ],
  }),
});

const data = await response.json();
console.log(data.choices[0].message.content);

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