Train ChatGPT on Your WordPress Site Content (Locally)

Imagine having your own personal AI assistant trained on your blog, documentation, or customer FAQs. With a few tools, you can run a private version of ChatGPT locally — and feed it your actual WordPress site content.

🔍 Why Train Locally?

• Privacy: Your site data never leaves your machine.
• Speed: Local vector search is blazing fast.
• Control: Customize how responses are generated, and keep your brand voice consistent.

📦 Tools You’ll Need

• WordPress (obviously)
• LangChain or LangChain.js
• Ollama (runs LLMs like Mistral or LLaMA locally)
• Weaviate or Chroma for vector storage

🧱 Step 1: Export WordPress Content

Use WP-CLI to export all your posts or pages in JSON format:

wp export --post_type=post --format=json > site-content.json

You can also write a simple PHP script to fetch posts via REST API and save them as plain text files.

// Sample PHP to fetch all post content
$posts = get_posts(['numberposts' => -1]);
foreach ($posts as $post) {
  file_put_contents("exports/{$post->ID}.txt", strip_tags($post->post_content));
}

📥 Step 2: Embed the Content

Use LangChain or ChromaDB to chunk your content into embeddings:

from langchain.document_loaders import TextLoader
from langchain.vectorstores import Chroma
from langchain.embeddings import OllamaEmbeddings

loader = TextLoader("exports/")
docs = loader.load()

db = Chroma.from_documents(docs, embedding=OllamaEmbeddings(model="mistral"))

🧠 Step 3: Ask Questions About Your Site

Now you can query your AI assistant:

from langchain.chains import RetrievalQA
qa = RetrievalQA.from_chain_type(llm=Ollama(), retriever=db.as_retriever())

qa.run("What services do I offer?")

🎯 Use Cases

• Answer customer support questions using your real docs
• Automate blog summaries or help write new content
• Build a chatbot trained on your site for sales/support

🔥 Final Thoughts

You don’t need an OpenAI API key or cloud access to build smart, contextual AI around your WordPress site. Train locally. Stay fast. Stay private.

Let me know if you’d like to see a full working demo — I’m considering releasing a WordPress plugin that does this out of the box.