Claude Sonnet 5 — reviews, specs & pricing

The best Claude balance of speed and intelligence. 1M context, $3/$15 per 1M tokens list price (introductory $2/$10 through August 31, 2026).

Specifications

  • Provider: anthropic
  • License: closed
  • Context: 1000k tokens
  • Input price: $3/M tok
  • Output price: $15/M tok

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Frequently asked questions

What is Claude Sonnet 5?

The best Claude balance of speed and intelligence. 1M context, $3/$15 per 1M tokens list price (introductory $2/$10 through August 31, 2026).

How much does Claude Sonnet 5 cost?

Claude Sonnet 5 costs $3 per million input tokens and $15 per million output tokens.

Is Claude Sonnet 5 open source?

Claude Sonnet 5 is released under the closed license.