claude-sonnet-4-6 — API, Pricing & Context Window | Vivgrid

claude-sonnet-4-6 — API, Pricing & Context Window

claude-sonnet-4-6 on Vivgrid: Anthropic's balanced Sonnet model with a 1M-token context window, Messages API, and geo-distributed acceleration.

claude-sonnet-4-6 is Anthropic's balanced Sonnet model, offering much of Opus's coding and reasoning quality at a lower price and faster speed. Its 1M-token context window makes it a versatile workhorse for production agents.

On Vivgrid, claude-sonnet-4-6 is geo-distributed across AMER and EMEA and reachable on the Messages API through the same unified key as the rest of the catalog.

Specifications
Provider Anthropic
Model ID claude-sonnet-4-6
Best for Coding
Context window 1,000,000 tokens
Max output 128,000 tokens
Modalities Text, Image
Tool / function calling Yes
Knowledge cutoff 2025-08
Acceleration ⚡ Geo-Distributed — AMER, EMEA

Pricing

Pricing in USD per 1M tokens, matching the provider's rates.

Input Cached input Output
$4.00 $1.00 $15.00

Quick start

Call claude-sonnet-4-6 through Vivgrid's unified, OpenAI-compatible endpoint. Get an API key from the Vivgrid Console.

curl https://api.vivgrid.com/v1/messages \
  -H "Authorization: Bearer $VIVGRID_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-sonnet-4-6",
    "max_tokens": 1024,
    "messages": [\
      { "role": "user", "content": "Say hello in English, Chinese and Spanish." }\
    ],
    "stream": true
  }'

Ideal use cases

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