JLvL

• Trapit Bansal: pioneered RL on chain of thought and co-creator of o-series models at OpenAl.

• Shuchao Bi: co-creator of GPT-4o voice mode and o4-mini. Previously led multimodal post-training at OpenAl.

• Huiwen Chang: co-creator of GPT-4o's image generation, and previously invented MaskIT and Muse text-to-image architectures at Google Research.

• Ji Lin: helped build o3/o4-mini, GPT-4o, GPT-4.1, GPT-4.5, 4o-imagegen, and Operator reasoning stack.

• Joel Pobar: inference at Anthropic. Previously at Meta for 11 years on HHVM, Hack, Flow, Redex, performance tooling, and machine learning.

• Jack Rae: pre-training tech lead for Gemini and reasoning for Gemini 2.5. Led Gopher and Chinchilla early LLM efforts at DeepMind.

• Hongyu Ren: co-creator of GPT-4o, 4o-mini, o1-mini, o3-mini, o3 and o4-mini. Previously leading a group for post-training at OpenAl.

• Johan Schalkwyk: former Google Fellow, early contributor to Sesame, and technical lead for Maya.

• Pei Sun: post-training, coding, and reasoning for Gemini at Google Deepmind. Previously created the last two generations of Waymo's perception models.

• Jiahui Yu: co-creator of o3, o4-mini, GPT-4.1 and GPT-4o. Previously led the perception team at OpenAl, and co-led multimodal at Gemini.

• Shengjia Zhao: co-creator of ChatGPT, GPT-4, all mini models, 4.1 and o3. Previously led synthetic data at OpenAl.

TechCrunch has a more recent article (https://techcrunch.com/2025/02/19/ai-coding-startup-codeium-...) that has the company valued at $2.85 billion but this was due to them being in talks to raise even more funding this financial quarter.