Opus 4.8

Every AIbrief event involving Opus 4.8, in order.

1. August 11, 2026 · Products · 2 sources

   Nvidia releases Nemotron 3.5 Lightning and open-source NeMo Switchyard for agent routing

   Nvidia has introduced Nemotron 3.5 Lightning, a 30 billion-parameter open mixture-of-experts model aimed at high-volume agent workloads, alongside NeMo Switchyard, an open-source library that routes steps in an agent workflow across different models. Nvidia says Lightning delivers faster output than comparable models and that, when paired with Switchyard, the setup can maintain strong task performance while reducing benchmark costs versus relying on a frontier model alone.

2. May 28, 2026 · Models · 1 source

   Anthropic releases Opus 4.8 and Dynamic Workflows for coordinating subagents

   Anthropic has released Opus 4.8, a new version of its Opus model, along with a tool called Dynamic Workflows, according to TechCrunch. The company says Dynamic Workflows is designed to coordinate swarms of subagents, positioning the release as both a model update and an orchestration feature for more complex agentic tasks.