OpenAI has released two open-weight models, gpt-oss-120b (117 billion parameters) and gpt-oss-20b (21 billion parameters), both built with a Mixture of Experts (MoE) design and a 128K context window. These models are the leading open source models, according to Artificial Analysis benchmarks, and excel at reasoning and agentic workflows. WithContinue Reading
This post is the second part of the GPT-OSS series focusing on model customization with Amazon SageMaker AI. In Part 1, we demonstrated fine-tuning GPT-OSS models using open source Hugging Face libraries with SageMaker training jobs, which supports distributed multi-GPU and multi-node configurations, so you can spin up high-performance clustersContinue Reading
Released on August 5, 2025, OpenAI’s GPT-OSS models, gpt-oss-20b and gpt-oss-120b, are now available on AWS through Amazon SageMaker AI and Amazon Bedrock. These pre-trained, text-only Transformer models are built on a Mixture-of-Experts (MoE) architecture that activates only a subset of parameters per token, delivering high reasoning performance while reducingContinue Reading
Today, we are excited to announce the availability of Open AI’s new open weight GPT OSS models, gpt-oss-120b and gpt-oss-20b, from OpenAI in Amazon SageMaker JumpStart. With this launch, you can now deploy OpenAI’s newest reasoning models to build, experiment, and responsibly scale your generative AI ideas on AWS. InContinue Reading
Kenneth Cheung OpenAI whistleblowers have asked the U.S. Securities and Exchange Commission (SEC) to “immediately approve” an investigation into the artificial intelligence (AI) startup’s prior non-disclosure agreements with its employees, the Washington Post reported on Saturday, citing a seven-page letter it obtained. The whistleblowers have also alleged that OpenAI, whichContinue Reading
Robert Way Microsoft (NASDAQ:MSFT) has reportedly ditched its board observer seat at OpenAI, while Apple (NASDAQ:AAPL) will not take up a similar position, as tech giants face increasing scrutiny over investments in artificial intelligence startups, the Financial Times reported on Wednesday. Microsoft (MSFT), which has invested billions in the makerContinue Reading
hapabapa Despite OpenAI blocking API access in China start this month, its AI models are still available to Microsoft (NASDAQ:MSFT) Azure Chinese customers, The Information reported. Azure, which operates locally via a joint venture, has made it clear that the OpenAI service is available in China, the news outlet reported,Continue Reading
Justin Sullivan/Getty Images News Apple (NASDAQ:AAPL) is apparently receiving an observer role position on OpenAI’s board of directors, according to a report Tuesday afternoon by Bloomberg, which cited anonymous sources close to the situation. The position is going to Phil Schiller, a 30-year Apple veteran who currently leads the AppContinue Reading
hapabapa Microsoft’s (NASDAQ:MSFT) multi-billion dollar investment into generative artificial intelligence company OpenAI may face additional scrutiny from the European Union’s antitrust chief over its use of Microsoft’s cloud technology, Bloomberg reported. Microsoft shares were fractionally higher in on Friday. Margrethe Vestager, the Executive Vice President of the European Commission, isContinue Reading
hapabapa OpenAI, the generative artificial intelligence startup backed by Microsoft (NASDAQ:MSFT), announced a content deal with news outlet Time to use its 101-year-old archive to train the former’s AI models. As part of the deal, which terms were not disclosed, OpenAI gets access to current and historic content from Time’sContinue Reading
