Understanding Anthropic Pricing for Claude Models
At the heart of Anthropic's pricing is a simple, pay-as-you-go model. Instead of a flat monthly subscription for API access, you're billed based on what you actually use. The currency of this world is the token.
Think of tokens as small fragments of words. A good rule of thumb is that 1,000 tokens is roughly 750 words. You pay a specific rate for the data you send to the model (input) and a different rate for the data the model sends back to you (output).
How Anthropic Pricing Actually Works