Artificial Intelligence

ChatGPT, developed by OpenAI, is a large language model chatbot released in November 2022. It allows users to have conversations with the AI, generate creative text formats, and answer questions in an informative way. There's a free tier that uses an older model with limited abilities and knowledge. A paid subscription unlocks a more advanced model with greater capabilities and access to real-time information through web searches. Additionally, there are enterprise tiers offering access to even more powerful AI models and collaboration features. For developers, OpenAI provides a separate API (Application Programming Interface) access to the GPT-3.5 and GPT-4 models behind ChatGPT. This API offers more flexibility and control compared to the user-friendly chat interface but requires writing code to interact with the models.

Free Tier:

• Uses GPT-3.5 model
• Limited capabilities compared to paid tiers
• Knowledge cutoff: January 2022

ChatGPT Plus (Paid Subscription):

• Access to GPT-4 model
  • More advanced capabilities than GPT-3.5
  • Knowledge cutoff: December 2023
  • Ability to search the web for real-time data (GPT-4 browsing version)
• Other features may require additional subscriptions like ChatGPT Team or Enterprise
  • Access to advanced models like DALL-E 2
  • Team collaboration tools

ChatGPT works in two main stages: training and conversation.

Training

• Foundation with GPT-3.5  and GPT-4: ChatGPT is built on top of GPT-3.5 and GPT-4, powerful language models trained on a massive dataset of text and code. This initial training allows ChatGPT to understand the relationships between words and how they're used in different contexts.
• Reinforcement Learning with Human Feedback (RLHF): Here's where ChatGPT gets its conversational skills. RLHF involves human trainers showing the model examples of good and bad conversation, allowing it to learn what kind of responses are desirable.

Conversation

• Understanding Your Input: When you interact with ChatGPT, it analyzes your prompt or question. It considers the words you use and the context of the conversation to try and grasp your intent.
• Predicting Next Words: Based on its understanding, ChatGPT uses its knowledge of language patterns to predict the sequence of words that would likely form a coherent and relevant response.
• Generating Text: Finally, ChatGPT outputs the answer it thinks is most likely to be helpful, informative, or engaging, continuing the conversation.

Here are some key things to keep in mind about ChatGPT:

• Generative, not Extractive: Unlike some chatbots that retrieve pre-programmed responses, ChatGPT generates its answers on the fly. This allows for more flexibility and nuanced conversations.
• Limited Factual Accuracy: While impressive, ChatGPT is still under development, and its responses may not always be factually accurate. It excels at conversation flow, but double-checking information it provides is a good practice.