# Sam Witteveen — 'Hy4 Beats it's Preview Easily'

> Sam Witteveen gives a first look at Tencent's full Hunyuan Hy4 release.

- Org: Sam Witteveen
- Date: 2026-11-05
- Category: video
- Source: https://www.youtube.com/watch?v=P6SH3-oqDrY
- Canonical page: https://ai-tldr.dev/releases/sam-witteveen-hy4-nov5/

## In short

Sam Witteveen looks at the full release of Tencent's Hunyuan Hy4, which follows the August preview, and says its results beat the preview. The open weights are still pending.

## What it is

'Hy4 Beats it's Preview Easily' went up on Sam Witteveen's channel on 5 November 2026. It is a quick first look at Hunyuan Hy4, the full version of Tencent's flagship model after the August preview.

## How it works

Tencent's final Hy4 adds image input and computer use to the preview and keeps a 1,048,576-token context window. It is hosted on Tencent Cloud and OpenRouter, and Witteveen notes in the video description that the open weights have not shipped yet.

## Why it matters

Hy4 is one of the larger Chinese flagship releases this month. A short hands-on view helps developers decide whether to try the hosted model now or wait for the weights.

## Who it's for

developers tracking Chinese frontier models

## Links

- [Watch on YouTube](https://www.youtube.com/watch?v=P6SH3-oqDrY)
- [OpenRouter Listing](https://openrouter.ai/tencent/hy4)
- [Caixin Report](https://www.caixinglobal.com/2026-11-05/tencent-launches-upgraded-hy4-ai-model-with-visual-understanding-102501068.html)