AI system prompt guide 2026 with terminal icon on dark blue and purple abstract gradient background, tutorial on how to write and use system instructions for AI models.
AIの基本とハウツーガイド

What Are AI System Instructions & How to Use Them for Better Results?

AI system instructions are one of the most powerful yet underused features in modern chatbots. They let you define how an AI responds to you, every single time, without repeating yourself in each conversation. Used well, they eliminate the most common frustration with AI: getting generic responses that require constant correction. Yet most people never touch them. They open ChatGPT, Claude, or Gemini and start typing, getting generic responses that require constant correction. System instructions fix that problem at the root. In this guide, we cover what system instructions actually are, how they differ from regular prompts, how to set them up on every major AI platform, and share advanced […]

Glowing golden line-art horse on a red Lunar New Year lantern background with the headline “Use AI to Get Stunning Profile Picture for Lunar New Year”
AIの基本とハウツーガイド プロンプトエンジニアリング

How to Create a Lunar New Year 2026 AI Profile Picture + 10 Prompts

Lunar New Year (often called Chinese New Year) begins on February 17, 2026. Many people mark the season with a refreshed profile picture (PFP), and with the right prompt system, you can transform a simple selfie into a festive, high-quality avatar in minutes. This guide is prompt-first: you will get one reusable “identity lock” prompt wrapper plus 10 copy-paste style modules. This guide targets Chinese New Year photo prompts and Lunar New Year profile picture prompts, as the same templates work for both names of the holiday across different regions. Lunar New Year is celebrated across multiple communities and may be known as Spring Festival, Seollal, or Tết, depending on […]