Claude Sonnet 5 API pricing

$2.00 / 1M input tokens   ·   $10.00 / 1M output tokens

Pricing note: Launched at introductory pricing through Aug 31, 2026; the scheduled increase to $3/$15 was cancelled — $2/$10 is now the standing price.

Within the balanced tier (9 models we track), the average input rate is $1.92/1M — Claude Sonnet 5 runs about 4% above that average.

Output tokens cost 5.0x the input rate for Claude Sonnet 5 — above the 4.6x average across all tracked models.