Slide 1: The Genesis of ChatGPT: Laying the Foundation. Slide 2: GPT-2: Scaling Up and Ethical Considerations. Slide 3: GPT-3 and InstructGPT: Fine-Tuning for Dialogue. Slide 4: ChatGPT (3.5): The Public Sensation. Slide 5: GPT-4: Enhanced Capabilities and Multimodal Vision. Slide 6: GPT-4 Turbo: Speed, Cost-Effectiveness, and Longer Context. Slide 7: GPT-4o: The Omni Model - True Multimodal Integration. Slide 8: Focus on Safety and Responsible AI at OpenAI. Slide 9: Impact and Future of ChatGPT: Transforming Industries. Slide 10: Conclusion: The Journey of ChatGPT Continues