Claude Sonnet 4.6

anthropic/claude-sonnet-4-6

The best combination of speed and intelligence. Ideal for high-throughput tasks requiring strong reasoning.

Specifications

Context Window 1M tokens

Max Output 64K tokens

Latency fast

Knowledge Cutoff Aug 2025

Training Data Jan 2026

Pricing

Input $3.00 per 1M tokens

Output $15.00 per 1M tokens

Capabilities

text Text generation and understanding

vision Image and visual input processing

tool use Function calling and tool integration

extended thinking Deep reasoning with chain-of-thought

adaptive thinking Dynamic reasoning depth based on task complexity

API Identifiers

Model ID anthropic/claude-sonnet-4-6

Provider API ID claude-sonnet-4-6

AWS Bedrock anthropic.claude-sonnet-4-6

GCP Vertex AI claude-sonnet-4-6

Usage via Multi-Router

curl https://api.multi-router.ai/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -H "x-mr-router-id: YOUR_ROUTER_ID" \
  -d '{
    "model": "anthropic/claude-sonnet-4-6",
    "messages": [
      {"role": "user", "content": "Hello!"}
    ]
  }'