Get API key

Model

Claude Sonnet 5 API pricing

Compare the published Claude Sonnet 5 (claude-sonnet-5) list rate with corouter's outlet rate, and estimate a monthly token bill. Claude Sonnet 5 lists below Sonnet 4.6 on both input and output and keeps the 1M window plus the Code tag. Send claude-sonnet-5 for that newer Sonnet ID.

Anthropic
Claude Sonnet 5
Anthropic
−80%
Model ID
claude-sonnet-5
Context window
1M
Vendor
Anthropic
Modalities
ChatVisionCode
List pricecorouter
Input / Mtok$2.00$0.400
Cached input / Mtok$0.200$0.040
Output / Mtok$10.00$2.00

Prices in USD per million tokens, verified against official pricing pages on 2026-09-28.

Where this model fits

  • Coding agents that should use the Sonnet 5 ID
  • Long-context work at a list rate below Sonnet 4.6
  • Vision plus code without stepping up to an Opus ID

Estimates only. Actual billing depends on your real token counts, cache hit rate, and the prices in effect at request time.

Compare all prices·Browse all live models

From the blog