Anthropic

claude-opus-4-6

anthropicmodel ID claude-opus-4-6-35%

claude-opus-4-6 costs $3.25 per million input tokens and $16.25 per million output tokens through the KoRouter API — 35% below Anthropic's official rate, pay as you go with credits.

  • Context window1M input tokens
  • Input modalitiestext, image, file
  • Output modalitiestext

Call it in one request

curl · claude-opus-4-6
curl https://korouter.ai/v1/messages \
  -H "x-api-key: sk-your-key" \
  -H "anthropic-version: 2023-06-01" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-opus-4-6",
    "max_tokens": 1024,
    "messages": [{ "role": "user", "content": "Hello" }]
  }'

Replace sk-your-key with a key from the console. Model IDs are bare names — see the docs and per-tool setup guides.

Supported parameters

max_tokensmax_completion_tokensreasoningreasoning_effortinclude_reasoningtoolstool_choiceresponse_formatstructured_outputs

More models

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Prices use the live billing catalog · live availability · all models