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Anthropic

claude-sonnet-4-5

  • Text
  • Billed per token

Pricing

Input price
$0.15
Original price $3.0094% off
per 1M tokens
Output price
$0.77
Original price $15.0094% off
per 1M tokens
Cache read price
—
per 1M tokens
Cache write price
—
per 1M tokens
Compatible APIs
  • Anthropic Messages
  • OpenAI Chat
Provider
Anthropic
Currency
USD

Quick start

Call it with the exact model ID below. Replace NIGHTROUTER_API_KEY with your API key.

curl https://api.nightrouter.ai/v1/messages \
  -H "x-api-key: $NIGHTROUTER_API_KEY" \
  -H "anthropic-version: 2023-06-01" \
  -H "content-type: application/json" \
  -d '{"model":"claude-sonnet-4-5","max_tokens":1024,"messages":[{"role":"user","content":"Hello"}]}'

More from Anthropic

claude-sonnet-4-5 — NightRouter