AI Assistant: AI Token Usage Estimation

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The AI Assistant module is an add-on feature for the iSlash AI platform. Note that when using AI Assistant, there is AI token usage which is chargeable. 

Prerequisites:

  1. An active iSlash AI account with AI Assistant module being enabled.

iSlash AI Assistant is powered by ChatGPT, Google Gemini, and Qwen. When using the iSlash AI Assistant, token usage occurs in three key activities:

  1. Processing Customer Questions - Understanding and analysing customer queries

  2. Generating AI Answers - Producing responses in the selected language and AI model


Token calculation is based on character usage. However, usage efficiency varies depending on language and the LLM (Large Language Model) version selected.


No Token Charges for Uploading Training Materials

(Applies only to Knowledge Base 2.0)

Build and update your Knowledge Base 2.0 freely — uploading and training your AI Assistant won't cost any tokens. Tokens are only used later, when your AI Assistant is actively answering customer questions.

We've also made training your AI Assistant much simpler:

1️⃣ More file formats supported

Upload almost any file type — no need to convert or reformat your documents:

.pdf, .docx, .xlsx, .csv, .json, .txt, .md, .jpg, .png

2️⃣ No more "Embedding Model" selection

No technical decisions required. Just upload your training materials — the system handles the rest automatically.


AI Token Standard Pricing by AI Models

Open AI

Model Name

Price Per 1,000 Unit (HKD)

Embedding

Text Embedding ADA 002

0.0013

Embedding

Text Embedding 3 Small

0.0003

Embedding

Text Embedding 3 Large

0.0017

Prompt

ChatGPT 5 Mini

0.0234

Prompt

ChatGPT 5.4 Nano

0.0147

Prompt

ChatGPT 5.4 Mini

0.0527

Prompt

ChatGPT 5.4

0.1755

Prompt

ChatGPT 5.6 Sol

0.351

Prompt

ChatGPT 5.6 Terra

0.1755

Prompt

ChatGPT 5.6 Luna

0.0702

Google Gemini

Model Name

Price Per 1,000 Unit (HKD)

Embedding

Gemini Embedding 2

0.0024

Prompt

Gemini 2.5 Flash

0.0293

Prompt

Gemini 3 Flash Preview

0.0351

Prompt

Gemini 2.5 Pro

0.1755

Prompt

Gemini 3.1 Pro Preview

0.2106

Prompt

Gemini 3.1 Flash Lite

0.0176

Prompt

Gemini 3.5 Flash

0.1053

Qwen

Model Name

Price Per 1,000 Unit (HKD)

Prompt

Qwen 3.7 Max

0.0878

Prompt

Qwen 3.6 Flash

0.0468


AI Token Usage Estimation

Understanding token usage helps you estimate costs and optimize your AI interactions. Tokens are units of text (words, punctuation, or characters) that the AI processes.

Token calculation by language.

  1. English Language:

    • 1 token equals approximately 4 English characters
      about 75 words per 100 tokens.

  2. Chinese Language:

    • A  20-characters Chinese poem like “Quiet Night Thoughts” (靜夜思) uses ~34 tokens. 

Example usage estimation:
If there are 20 users per day, each asking 3 questions, over 365 days, the estimated cost is around HKD 750 (with a fluctuation of about 60 questions).

  • With HKD 2000, you can process roughly 10 million Chinese characters in conversations.

  • For heavy daily usage, monitor token reports in your iSlash AI dashboard.


How to Estimate Token Usage
  1. Draft your text prompt or expected chatbot response.

  2. Visit the free Token Counter Tool here: 👉 https://www.quizrise.com/token-counter


  3. Paste your text to see the estimated token count instantly.

    This tool provides a quick way to gauge usage before you send your messages to the AI, helping you manage efficiency and plan resources better.


Top-up AI Credit

Before beginning to deploy AI Assistant to chatbot, please top up AI credit following these steps:

  1. Go to Settings (https://app.islash.io/setting/plan).

  2. At My Plan, find Credit Balance.


  3. Click "Manage Credits" and select "Top-Up".

  4. At the "Top-Up By Credit Card" pop-up window, select AI and update amount of credits to top-up.

    • Minimum top-up value is HKD500, the credit is transferable between Plan, Message, AI and Ad.


  5. Click "Top-up HKD 500" and you'll be guided to a payment checkout page.

  6. Complete payment.

FAQs

FAQs

  1. What is the cost estimation for token usage?

    •  If there are 20 users per day, each asking 3 questions, over 365 days, the estimated cost is around HKD 750 (with a fluctuation of about 60 questions).