Mira Murati
Former Chief Technology Officer, OpenAI | Leader of ChatGPT, DALL-E & GPT-4o
Former Chief Technology Officer of OpenAI, where she oversaw engineering, research execution, and product scaling for ChatGPT, DALL-E 2/3, Codex, Sora, and GPT-4o (omni). Mechanical engineer (Dartmouth) with engineering roots at Tesla (Model X) and Leap Motion, renowned for turning exploratory lab research into world-scale, intuitive, multi-modal human-AI interfaces.
Areas of focus
Professional niches
Proof of Work
ChatGPT Production Launch & Reinforcement Learning from Human Feedback (RLHF) Scaling
Directed the technical conversion of GPT-3.5 into ChatGPT via conversational RLHF, dialog-state conditioning, and distributed inference optimization that scaled to 100 million active users in two months with high system availability.
Early versions suffered from sycophancy and hallucinations under adversarial jailbreak prompts, necessitating iterative red-teaming.
Context: PPO reinforcement learning on InstructGPT checkpoints deployed across large-scale NVIDIA A100 GPU clusters.
View missionGPT-4o: End-to-End Real-Time Multimodal Omni Model Architecture
Led the research and product execution of GPT-4o, unifying text, visual, and audio tokens into a single native neural network that achieves 232ms average voice response latency, matching human conversational response intervals while preserving complex reasoning.
Real-time speech interruption handling requires aggressive client-side endpointing and noise cancellation to avoid cutting off human speakers.
Context: Native end-to-end multimodal transformer trained on text, audio, and visual tokens simultaneously.
View mission