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Put up to 4 models beside each other — token prices, context windows, capabilities and provider, from the same catalogue the model pages read.

  1. Claude Opus 4.6 (Thinking)AnthropicRemove
  2. Claude Sonnet 5.5AnthropicRemove
claude-opus-4-6-thinking vs claude-sonnet-5.5
AttributeClaude Opus 4.6 (Thinking)claude-opus-4-6-thinkingClaude Sonnet 5.5claude-sonnet-5.5
Pricing
Input$4.00 / 1M$2.00 / 1M
Output$20.00 / 1M$10.00 / 1M
Cache Write (5m)$5.00 / 1M$2.50 / 1M
Cache Write (1h)$8.00 / 1M$4.00 / 1M
Cache Read$0.40 / 1M$0.20 / 1M
Web Search$0 / 1M$0 / 1M
Context
Max context1M1M
Max outputN/AN/A
Capabilities
VisionYesYes
Function CallingYesYes
JSON ModeYesYes
StreamingYesYes
Catalogue
ProviderAnthropicAnthropic
Categorychatchat
Charge typePay As You GoPay As You Go
Released——
Description
SummaryOpus 4.6 is Anthropic's most capable model for coding and long-running professional workflows, designed for agents that operate across entire workflows rather than single prompts. It demonstrates strong performance on large codebases, complex refactoring, and multi-step debugging, with improved contextual understanding, deeper problem decomposition, and higher reliability on challenging engineering tasks compared to earlier generations. Beyond software development, Opus 4.6 excels at sustained knowledge work, producing near production-ready documents, technical plans, and analyses in a single pass while maintaining coherence across long outputs and extended sessions. Its strength in persistence, judgment, and structured execution makes it well suited for technical design, migration planning, and end-to-end project execution.Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, serving as a direct upgrade to Sonnet 5. It excels at feature development, bug fixing, and creating polished documents, presentations, and spreadsheets, while offering clearer writing and communication than its predecessor.