Big Technology Podcast OpenAI Chief Research Officer Mark Chen: GPT 4.5 is Live and Scaling Isn’t Dead
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Feb 27, 2025 
Mark Chen, Chief Research Officer at OpenAI, dives into the launch of GPT 4.5, the company's most advanced model yet. He discusses the scaling challenges faced in AI development and the significance of emotional intelligence in models today. Chen explores the balance between product performance and foundational models, emphasizing how advancements can reshape user interactions. He also highlights OpenAI's talent dynamics post-departures, providing insights into the future of AI and the commitment to pushing boundaries.
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GPT 4.5 Release
- GPT 4.5 is the latest model from OpenAI, built upon predictable scaling principles.
- It represents an order of magnitude improvement, similar to the jump from GPT 3.5 to 4.
Two Scaling Axes
- OpenAI now scales models along two axes: unsupervised learning and reasoning.
- GPT-5 could be a culmination of advancements in both areas.
Scaling Success
- GPT 4.5 demonstrates continued scaling success with increased compute, data, and algorithms.
- It excels in world knowledge, improving everyday and productivity tasks.