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Claude Opus 5.5: price, context, what it takes

Claude Opus 5.5 from Anthropic, as OpenRouter's public list names it: anthropic/claude-opus-5.5. Read 2026-11-06.

Prices are OpenRouter's, in US dollars. For most models that is the vendor's own list price; a vendor selling direct can differ.

The modelanthropic/claude-opus-5.5
  • Input, per 1M tokens$4.00
  • Output, per 1M tokens$20.00
  • Cached input, per 1M tokens$0.200
  • Context window1,000,000 tokens
  • Longest answer128,000 tokens
  • Takestext, images, files
  • Givestext
  • Acceptsreasoning, JSON schema, tools
  • Released2026-09-22
  • In the list since2026-10-28
Price over time

One price since 2026-10-28, read 1 times.

Other Anthropic models
ModelInput, 1MOutput, 1MContext
Claude Fable 5$10.00$50.001M
Claude Fable 5.1$10.00$50.001M
Claude Haiku 4.5$1.00$5.00200K
Claude Haiku 5.5$0.100$0.5001M
Claude Opus 4.1$15.00$75.00200K
Claude Opus 4.5$5.00$25.00200K
Claude Opus 4.6$5.00$25.001M
Claude Opus 4.7$5.00$25.001M
Claude Opus 4.8$5.00$25.001M
Claude Opus 5$5.00$25.001M
Claude Sonnet 4.5$3.00$15.001M
Claude Sonnet 4.6$3.00$15.001M

All modelsJSON