GPT stands for Generative Pre-trained Transformer. It’s a type of large language model developed by OpenAI that can generate human-like text, answer questions, write code, summarize content, and much more. GPT-3, GPT-4, and GPT-4o are the models behind ChatGPT and a massive ecosystem of AI tools.
What Makes GPT Different
GPT models use a transformer architecture and are trained on vast amounts of text from the internet, books, and other sources. The pre-trained part means the model is trained once on general data, then can be fine-tuned or prompted for specific tasks without retraining from scratch.
GPT Model Generations
- GPT-1 (2018) — proof of concept, 117M parameters
- GPT-2 (2019) — caused alarm at how convincingly it wrote; 1.5B parameters
- GPT-3 (2020) — mainstream breakthrough; 175B parameters
- GPT-4 (2023) — multimodal (text + images), dramatically more capable
- GPT-4o (2024) — faster, cheaper, with real-time audio and vision
GPT via the API
Developers can access GPT models through OpenAI’s API to build their own applications — from AI writing tools and chatbots to WordPress plugins and content automation pipelines.
GPT-Powered WordPress Plugins
Many WordPress plugins now use GPT under the hood to offer AI writing assistance, SEO optimization, chatbots, and content generation — all inside your WordPress dashboard.
Related: Large Language Model
Related: ChatGPT
