ChatGPT

GPT Series

1. GPT-1 (June 2018)
   • Parameters: 117 million
   • Key Features: Introduced the transformer architecture for language modeling.
   • Use Cases: Basic text generation and understanding[1][2].
2. GPT-2 (February 2019)
   • Parameters: 1.5 billion
   • Key Features: Significantly improved coherence and relevance in text generation.
   • Use Cases: Creative writing, summarization, and basic chatbot applications[1][2].
3. GPT-3 (June 2020)
   • Parameters: 175 billion
   • Key Features: Zero-shot and few-shot learning capabilities, producing human-like text.
   • Use Cases: Content creation, coding assistance, and conversational AI[1][2].
4. GPT-3.5 (December 2022)
   • Key Features: Enhanced conversational abilities over GPT-3.
   • Use Cases: Customer support, virtual assistants, and interactive applications[2].
5. GPT-4 (March 2023)
   • Parameters: 1.5 trillion
   • Key Features: Multimodal capabilities (text and image processing), deeper contextual understanding.
   • Use Cases: Advanced research, complex problem-solving, and multimodal tasks[1][2].
6. GPT-4 Turbo (November 2023)
   • Key Features: Optimized for faster performance with lower costs.
   • Use Cases: High-demand commercial applications[2].
7. GPT-4o (May 2024)
   • Key Features: Added voice and multilingual capabilities; state-of-the-art benchmarks in vision and speech recognition.
   • Use Cases: Multimodal AI agents, translation, and accessibility tools[5].
8. GPT-5 (Expected Early 2025)
   • Projected Features: Autonomous reasoning, improved reliability, and real-world task automation without human oversight[2].