Claude Sonnet 5 Pricing — Token Costs & API Calculator

Official API pricing for Claude Sonnet 5 by Anthropic, with context window, tokenizer details, and a plain-English cost estimate.

Pricing Details

Attribute	Value
Provider	Anthropic
Input cost (per 1M tokens)	$2.00
Output cost (per 1M tokens)	$10.00
Context caching	Yes — 90% off input tokens
Batch API discount	50% off
Context window	1M tokens
Tokenizer	Anthropic tokenizer (Opus 4.7+ / Sonnet 5)

ⓘ Introductory pricing: Introductory pricing through Aug 31, 2026. Standard price: $3.00 / $15.00 per MTok after that date.

1,000 requests × 500 input tokens × 200 output tokens costs $3.00/month with Claude Sonnet 5 at Anthropic's published rates.

Based on $2/1M input tokens and $10/1M output tokens.