# Sam Witteveen — 'Ripple 65B: A Chip Design Lab Just Beat Every US Open Model'

> Sam Witteveen explains who Ricursive is and what makes its Ripple-65B Preview open model different.

- Org: Sam Witteveen
- Date: 2026-11-05
- Category: video
- Source: https://www.youtube.com/watch?v=2dD4HXg-YJ4
- Canonical page: https://ai-tldr.dev/releases/sam-witteveen-ripple-65b-nov5/

## In short

Sam Witteveen walks through Ripple-65B Preview, the Apache 2.0 open-weight coding model from chip-design company Ricursive, and how it compares with Chinese open models.

## What it is

'Ripple 65B: A Chip Design Lab Just Beat Every US Open Model' went up on Sam Witteveen's channel on 5 November 2026. The 20-minute video covers Ripple-65B Preview, the open-weight model released by Ricursive, a company that builds AI models for chip design rather than general LLMs.

## How it works

Chapters move from who Ricursive is and what it released to the Apache 2.0 license and a comparison with Chinese open models. Witteveen then looks at how the lab says it built the model for $32M, its thin and deep architecture, and a short demo.

## Why it matters

Ripple-65B Preview is pitched as the strongest US open-weight model for agentic coding, and the video helps viewers judge that claim before trying the Hugging Face weights.

## Who it's for

developers choosing open-weight coding models

## Links

- [Watch on YouTube](https://www.youtube.com/watch?v=2dD4HXg-YJ4)
- [Ripple on OpenRouter](https://openrouter.ai/ricursiveai/ripple-65b-preview)
- [Ripple-65B Weights](https://huggingface.co/ricursiveAI/Ripple-65B-Preview)
- [Sam Witteveen](https://www.youtube.com/channel/UC55ODQSvARtgSyc8ThfiepQ)