Eskra

What is ChatGPT training and how does it work?

Teach your AI to write emails exactly the way you do

Updated December 2025

What is ChatGPT training?

ChatGPT training (also called fine-tuning) is the process of teaching the AI model to write emails in your specific style and tone. Instead of generic AI responses, trained models learn from your past emails to match how you actually communicate with customers.

How does training work?

Training uses your existing email history as examples. The AI analyzes how you respond to different types of inquiries and learns patterns in your writing:

  • Your typical greeting and sign-off style
  • The level of formality you use with customers
  • How you handle common questions or issues
  • Your brand voice and personality

Why train your AI?

Without training, AI generates responses that work but might not sound like you. Training makes your AI responses:

  • More personalized: Emails sound like they came from you, not a robot
  • More accurate: Better understanding of your business and how you handle situations
  • More consistent: Same tone and style across all AI-generated responses
  • More efficient: Less editing needed before sending

What data is used for training?

Eskra uses your sent emails as training data. The more emails you have, the better the AI learns your style. Specifically:

  • Sent emails from your inbox
  • Both the original inquiry and your response
  • Context about the conversation flow
  • Your natural language patterns and preferences

How long does training take?

Training time depends on how many emails you're using. Typically, the process takes between 10 minutes to a few hours. Once complete, you can start using your custom-trained model immediately. You can retrain anytime as your style evolves or as you handle new types of inquiries.

Training vs. System Instructions

Training and system instructions work together but serve different purposes:

  • System instructions: Tell the AI general rules (e.g., "be professional but friendly")
  • Training: Shows the AI actual examples of how you write

Tip: For best results, use both: set system instructions for general guidelines, then train the model with your actual email history for personalized output.