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Jan Leike

Co-founder & CEO of Safe Superintelligence Inc.; Former Head of Alignment at OpenAI

Year of Birth 1987

Nationality Germany

Important milestone

Leads AI Safety

2021 – Headed OpenAI’s Superalignment team shepherding aligned LLM research.

Founds SSI

2024 – Co-founded Safe Superintelligence Inc. dedicated to AGI safety.

Publishes alignment work

2025 – Released internal papers on scalable oversight mechanisms.

AI product

o3-high-2025-04-16

O3 is the latest reasoning model released by OpenAI, with baseline metrics significantly surpassing previous models.

GPT-4.1-20250414

The GPT-4.1 series models launched by OpenAI, which have significant improvements in encoding, instruction adherence, and long context

GPT-5-2025-08-07

The latest, highly anticipated and powerful next-generation LLM named GPT-5 that officially launched by OpenAI.

GPT-4o-mini-20240718

GPT-4o-mini is an API model produced by OpenAI, with the specific version number being gpt-4o-mini-2024-07-18.

GPT-4o-mini-20240718

GPT-4o-mini is an API model produced by OpenAI, with the specific version number being gpt-4o-mini-2024-07-18.

GPT-4o-20240513

GPT-4o is an API model produced by OpenAI, with the specific version number being gpt-4o-2024-05-13.

360gpt2-pro

360gpt2-pro is a pre-trained language model based on the Transformer architecture, developed by 360 Company. This model has been optimized and improved upon the GPT-2 to offer more efficient and accurate language processing capabilities. The 360gpt2-pro model supports multiple languages and can handle a variety of natural language processing tasks, including text generation, text summarization, translation, and question answering.

GPT-4o-20240513

GPT-4o is an API model produced by OpenAI, with the specific version number being gpt-4o-2024-05-13.

GPT-4o-20241120

GPT-4o is an API model produced by OpenAI, with the specific version number being gpt-4o-2024-11-20.

GPT-4o-20241120

GPT-4o is an API model produced by OpenAI, with the specific version number being gpt-4o-2024-11-20.

GPT-4o-20240513

GPT-4o is an API model produced by OpenAI, with the specific version number being gpt-4o-2024-05-13.

GPT-4-Turbo-20240409

GPT-4-Turbo is an API model produced by OpenAI, with the specific version number being gpt-4-trubo-20240409.

GPT-4o-20240806

GPT-4o is an API model produced by OpenAI, with the specific version number being gpt-4o-2024-08-06.

GPT-4.1-20250414

The GPT-4.1 series models launched by OpenAI, which have significant improvements in encoding, instruction adherence, and long context.

GPT-4o-20240806

GPT-4o is an API model produced by OpenAI, with the specific version number being gpt-4o-2024-08-06.

GPT-4.1-mini-20250414

The GPT-4.1 series models launched by OpenAI, which have significant improvements in encoding, instruction adherence, and long context.

GPT-3.5-Turbo

GPT-3.5-Turbo is an API model produced by OpenAI, with the specific version number being gpt-3.5-turbo-0613.

GPT-4o-mini-20240718

GPT-4o-mini is an API model produced by OpenAI, with the specific version number being gpt-4o-mini-2024-07-18.

Personal Profile

Jan Leike is a leading AI safety researcher focused on alignment and interpretability. He directed the Superalignment team at OpenAI and now leads Safe Superintelligence Inc.