# Together AI ThunderKittens on Rubin, a16z Rethinks AI, Cursor Projects
_Together AI hits 22 PFLOPS with ThunderKittens on Rubin NVL72, a16z rethinks investing for AI, Cursor launches Projects._
**Published:** 2026-09-11
**Source:** https://www.startuphub.ai/ai-news/artificial-intelligence/2026/briefing-together-ai-a16z-cursor-2026-09-11-bc8e
---
Together AI pushed ThunderKittens past 22 PFLOPS on NVIDIA Vera Rubin NVL72. a16z argues investors must rethink everything for the AI era and Cursor launched Projects to structure agent work.

## To Infinity and Beyond: ThunderKittens Now on NVIDIA Vera Rubin NVL72!

The team rebuilt its NVFP4 GEMM around Rubin’s new ISA. It moved from 42 percent of roofline to over 22 PFLOPS on NVL72.

The result is now competitive with cuBLAS and CuTe DSL. The post details ISA changes that made it possible.

[Together AI](https://www.together.ai/blog/to-infinity-and-beyond-thunderkittens-now-on-nvidia-vera-rubin-nvl72)

## Why Investors Are Rethinking Everything for the AI Era

a16z frames AI as a platform shift that breaks prior investing playbooks. The video discussion centers on how capital, moats and company building change.

[a16z](https://www.youtube.com/watch?v=bsdJd2VeLvg)

## Introducing Projects

Cursor introduced Projects to give agents persistent context and structure. It is a workspace layer for longer running tasks.

[Cursor Blog](https://cursor.com/blog/projects)
---
Original analysis from [startuphub.ai](https://www.startuphub.ai), the #1 AI startup directory.