AWS Weekly Roundup: OpenAI models, Automated Reasoning checks, Amazon EVS, and more (August 11, 2025)

AWS Summits in the northern hemisphere have mostly concluded but the fun and learning hasn’t yet stopped for those of us in other parts of the globe. The community, customers, partners, and colleagues enjoyed a day of learning and networking last week at the AWS Summit Mexico City and the AWS Summit Jakarta.

Last week’s launches
These are the launches from last week that caught my attention:

• OpenAI open weight models on AWS — OpenAI open weight models (gpt-oss-120b and gpt-oss-20b) are now available on AWS. These open weight models excel at coding, scientific analysis, and mathematical reasoning, with performance comparable to leading alternatives.
• Amazon Elastic VMware Service — Amazon Elastic VMware Service (Amazon EVS), a new AWS service that lets you run VMware Cloud Foundation (VCF) environments directly within your Amazon Virtual Private Cloud ...