Elon Musk’s latest legal filing against OpenAI marks his fourth attempt in less than a year to reframe his claims. However, his own words and actions speak for themselves—in 2017, Elon not only wanted, but actually created, a for-profit as OpenAI’s proposed new structure.

In this post, we show that when two TopK SAEs are trained on the same data, with the same batch order but with different random initializations, there are many latents in the first SAE that don't have a close counterpart in the second, and vice versa. Indeed, when training only about 53% of the features are shared Furthermore, many of these unshared latents are interpretable. We find that narrower SAEs have a higher feature overlap across random seeds, and as the size of the SAE increases, the overlap decreases.

Zalando boosts the customer experience with its Assistant, powered by GPT-4o mini

This comprehensive guide will introduce you to the top 7 image segmentation tools that are expected to lead the market in 2025.

Our video generation model, Sora, is now available to use at sora.com. Users can generate videos up to 1080p resolution, up to 20 sec long, and in widescreen, vertical or square aspect ratios. You can bring your own assets to extend, remix, and blend, or generate entirely new content from text.

Put AI to work for your product team

Interdisciplinary artist Minne Atairu discusses how Sora helps realize her vision.

Sora is OpenAI’s video generation model, designed to take text, image, and video inputs and generate a new video as an output. Sora builds on learnings from DALL-E and GPT models, and is designed to give people expanded tools for storytelling and creative expression.

Filmmaking duo Vallée Duhamel explains how Sora helps build new worlds.

Filmmaker Lyndon Barrois describes how to use Sora as a storytelling tool.

Broadening usage of frontier AI

This report outlines the safety work carried out prior to releasing OpenAI o1 and o1-mini, including external red teaming and frontier risk evaluations according to our Preparedness Framework.

OpenAI and Future, the global platform for specialist media, have today announced a strategic partnership to bring content from Future’s 200 plus media brands to OpenAI’s users.

Morgan Stanley uses AI evals to shape the future of financial services

Advancing red teaming with people and AI

Building smarter maps with GPT-4o vision fine-tuning

By combining commercial experience and deep LLM expertise with OpenAI’s models, Rox makes every seller a top 1% seller.

What is the Role of Mathematics in Modern Machine Learning? The past decade has witnessed a shift in how progress is made in machine learning. Research involving carefully designed and mathematically principled architectures result in only marginal improvements while compute-intensive and engineering-first efforts that scale to ever larger training sets

Our first office in continental Europe