> ## Documentation Index
> Fetch the complete documentation index at: https://docs.x6.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Price

Detailed instructions on billing rules, how to recharge, and how to check billing.

# Model Pricing

Using [Claude Opus 4.7](https://x6.ai/m/Claude%20Opus%204.7) (API Format: Anthropic) as an example:

<Frame>
  <img src="https://mintcdn.com/x6/el_h-gJpYp66h95k/images/image-90.webp?fit=max&auto=format&n=el_h-gJpYp66h95k&q=85&s=9c43015ccb75d68471c175b312c2a5d2" alt="Image" width="972" height="341" data-path="images/image-90.webp" />
</Frame>

## What is a token?

A token is the basic unit of text that the model processes. Tokens are not the same as characters or words — they are text fragments determined by the model's own tokenizer.

| Text Example | Approx. Characters | Approx. Tokens |
| - | - | - |
| English word | 4–5 characters | \~1 token |
| Chinese character | 1 character | \~1.5–2 tokens |
| 1,000-word English article | \~5,000 characters | \~750 tokens |
| 1,000-character Chinese article | \~1,000 characters | \~1,500–2,000 tokens |

> These are estimates. Different providers such as OpenAI, Google, and Anthropic have slightly different token calculation rules.

## Token Types and Billing Rules (Claude Opus 4.7)

### Input Tokens (Prompt) — \$5 / million

Everything you send to the model — system prompt, conversation history, user messages, uploaded documents — all counts as input tokens.

### Output Tokens (Completion) — \$25 / million

The text the model generates in response. Output tokens cost 5× more than input tokens, so keeping responses concise has a meaningful impact on cost.

### Cached Tokens — Billed at 0.25× input rate

Prompt content served from cache is charged at only 25% of the normal price. Useful for long system prompts or repeated context, and can significantly reduce costs.

## Cost Estimation Examples

| Scenario | Input | Output | Estimated Cost |
| - | - | - | - |
| Short conversation | 1K tokens | 500 tokens | \~\$0.020 |
| Medium task | 10K tokens | 3K tokens | \~\$0.138 |
| Large codebase analysis | 100K tokens | 10K tokens | \~\$0.825 |

# Top-Up

After logging into your account on[ the x6.ai model page](https:/x6.ai/models), click your avatar in the top-right corner, then click “Top-Up”.

<Frame>
  <img src="https://mintcdn.com/x6/d_WM3auPTHJn-0Jg/images/image-21-1.webp?fit=max&auto=format&n=d_WM3auPTHJn-0Jg&q=85&s=3990cf1dd5818fcd92dede5a6dfd3276" alt="Image" width="1170" height="664" data-path="images/image-21-1.webp" />
</Frame>

## Platform Fee

| Payment Method | Fee | Note |
| - | - | - |
| Credit card | 0 | minimum ≥ 2 USD |
| Alipay | 0 | minimum ≥ 2 USD |

When you top up USD, you will receive WAI Credits. 1,000 WAI Credits = \$1.00 USD.<br />New users will receive \$2 worth of credits.

# Billing

You can view detailed Billing, Logs, and Usage information at [here](https://x6.ai/settings/billing).

<Frame>
  <img src="https://mintcdn.com/x6/d_WM3auPTHJn-0Jg/images/image-22-1.webp?fit=max&auto=format&n=d_WM3auPTHJn-0Jg&q=85&s=8759225b403e9cc1dc884662f48bd55a" alt="Image" width="1069" height="663" data-path="images/image-22-1.webp" />
</Frame>


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