Microsoft Research Asia Singapore, Claude Sonnet 5.5, and AMD’s World Labs Deal

Microsoft Research Asia Singapore, Anthropic’s Claude Sonnet 5.5, AMD’s acquisition of Fei-Fei Li’s World Labs, the CoSE-E multilingual speech benchmark, and Nvidia’s Open Agent Safety Platform lead today’s briefing. We also cover Florida’s legal push against OpenAI and reported safety concerns surrounding GPT-6.1 Astra.

Covered stories:

- Microsoft Research Asia Singapore marks its first year, with collaborations across healthcare, universities, government, and industry.

- Anthropic releases Claude Sonnet 5.5, with reported speed and cost improvements and availability in the Claude.ai free tier.

- AMD agrees to acquire World Labs in an all-stock deal valued at approximately $8.2 billion; Fei-Fei Li will join AMD as executive vice president and chief scientist.

- Research: CoSE-E proposes enterprise evaluation for speech recognition when speakers switch languages within an utterance.

- Nvidia introduces agent-safety tooling and details its Open Agent Safety Platform, including OpenShell and Sentry.

- Florida seeks an injunction affecting OpenAI’s frontier AI development.

- OpenAI reportedly halts GPT-6.1 Astra’s release after internal safety testing.

Source links:

- Microsoft Research Asia Singapore: https://www.microsoft.com/en-us/research/blog/one-year-in-how-microsoft-research-asia-singapore-is-advancing-research-partnership-and-talent-for-real-world-impact/

- Claude Sonnet 5.5: https://simonwillison.net/2026/Sep/28/claude-sonnet-5-5/