# Pricing and billing

> How Vikey computes the cost of a request, cache pricing, the balance check, and where to see usage history.

## Pay as you go

Your balance is in Rupiah and goes down automatically as each request finishes. There is no monthly fee. All model prices are on the [pricing page](https://vikey.ai/en/pricing), per 1 million tokens.

The cost of one request:

```text
cost = (input tokens x input price)
     + (output tokens x output price)
     + (cache read tokens x cache read price)
     + (cache write tokens x cache write price)
```

All prices are per 1 million tokens. The exact token counts for each request are in `usage` in the response and in the **Usage** menu of the dashboard.

## Cache pricing

Coding agents resend the same prompt beginning at every step: the system prompt, the tool list and the history. The part that matches an earlier request is read from cache and billed at the **cache read** price, which is much lower than the normal input price. The **Cache read** column on the pricing page shows it per model.

To keep caching effective:

- Do not change the start of the prompt on every request, for example by putting the time or a random number in the system prompt.
- For Claude Code, set `CLAUDE_CODE_ATTRIBUTION_HEADER=0` (see [Claude Code](/en/agents/claude-code/)).

## Balance check

Before a request runs, Vikey estimates its maximum cost from the input tokens and the output limit (`max_tokens`). If your balance is not enough, the request is rejected with `402` and is not charged.

Send a sensible `max_tokens`. A very large output limit makes the estimate large too, so a request can be rejected even though your balance would cover the actual answer.

## Extra charges

| Part | Cost |
| --- | --- |
| [Vikey Auto](/en/models/vikey-auto/) model selection | Rp10 per new message, only for Vikey Auto model ids |
| Image models | Per image, listed on the pricing page |

There are no other charges beyond what is recorded in **Usage** and the transaction history.

## Usage and billing

| Dashboard menu | Contents |
| --- | --- |
| **Overview** | Today's usage and recent transactions |
| **Usage** | Per model: requests, tokens and cost |
| **Billing** | Balance, top ups, transaction history, invoices |

Detailed per-request logs are kept for 7 days. The daily totals that billing is based on are kept permanently.

Source: https://docs.vikey.ai/en/models/pricing/