Overview of AI Engines

Available Large Language Models (LLMs)

We can utilize advanced large language models (LLMs) such as Anthropic’s “Claude Opus 4” and “Claude Sonnet 4”, OpenAI’s “ChatGPT 5” and “ChatGPT 4.1”, and Google’s “Gemini 2.5”, providing high text comprehension and generation capabilities in multiple languages including Japanese. LLMs can be used according to specific purposes and cost requirements.

What is an LLM?

Definition of Large Language Models

LLM (Large Language Model) refers to AI technology that can understand and create natural text like humans do.

Main Characteristics of LLMs

Simply put:

  • A computer “brain” that has learned from vast amounts of text data
  • Automatically creates natural and appropriate text as if written by humans
  • Correctly understands the content of questions and generates contextually appropriate responses

Use Cases for LLMs

Applications in Customer Service

  • Understanding the content of customer inquiries
  • Creating polite responses that match the company’s tone
  • Providing appropriate answers to complex questions
  • Supporting multilingual communication