Anthropic API pricing
Claude Sonnet 5.5 pricing
Input / 1M tokens
$2
Output / 1M tokens
$10
Cached input / 1M
$0.10
Source: Anthropic pricing, checked 1 Nov 2026.
Price your prompt on Sonnet 5.5
What a prompt costs on Claude Sonnet 5.5
| Example | Tokens in / out | Cost | 1,000 a day, per month |
|---|---|---|---|
| A short question and answer | 50 / 300 | $0.0031 | $93.00 |
| A one-page document summarised | 700 / 400 | $0.0054 | $162.00 |
| A 300-line code file reviewed | 4,000 / 1,200 | $0.020 | $600.00 |
| A 50-page report summarised | 35,000 / 1,500 | $0.085 | $2,550 |
Token sizes are typical, not exact. Replies include any thinking the model does.
Other Claude models
Fable 5.1Opus 5.5Sonnet 5Haiku 5.5Sonnet 4.6Haiku 4.5
FAQ
How much does Claude Sonnet 5.5 cost?
$2 per million input tokens and $10 per million output tokens on Anthropic's standard API tier, and $0.10 per million for cached input. Checked 1 Nov 2026.
What does one prompt cost on Claude Sonnet 5.5?
A 1,000-token prompt with a typical medium-length reply costs about $0.010. Paste your own prompt into the calculator for an exact figure.