# Hunyuan Hy4 — Tencent's full release adds vision and computer use

> Tencent's Hy4 leaves preview with image understanding and the ability to operate apps, on a 1M-token context.

- Org: Tencent
- Date: 2026-11-04
- Category: model
- Source: https://openrouter.ai/tencent/hy4
- Canonical page: https://ai-tldr.dev/releases/tencent-hy4/

## In short

Hunyuan Hy4 is the full release of Tencent's flagship model after the August preview. It adds image input and computer use, keeps a 1M-token context, and is live on Tencent Cloud and OpenRouter. Open weights come later.

## What it is

Hunyuan Hy4 adds vision and computer use to Tencent's flagship model, which shipped as an open-weight preview in August. Tencent says it can read fine image detail and complex charts and work across both command-line and graphical interfaces. The final model is hosted now; Tencent plans to publish the weights and a full system card later.

## How it works

Tencent scaled up both pre-training and post-training over the preview. Targeted training covered Blender, CAD and long workflows that span several applications, plus front-end work and game development in Unreal Engine, Unity and Godot, where Tencent reports gains of 19.1% on GameDev and 9.8% on GameLogic over the preview. During training Tencent kept only defensive cybersecurity data and filtered out exploit development and penetration-testing material.

## Why it matters

The hosted API takes images as well as text, so developers get vision and agent use on a 1M-token context at a low price: OpenRouter currently lists $0.417 input and $1.251 output per million tokens. In a company-run test with 213 finance professionals across 579 tasks, Tencent says Hy4 scored 3.04, ahead of DeepSeek V4.1 Flash 1017 (2.97) and Kimi K3.1 Pro and GLM-5.3 (2.68 each). Tencent also admits a gap to top closed models on research math and long-horizon coding.

## Who it's for

developers building agents on low-cost long-context models

## Try it

Model id tencent/hy4 on OpenRouter

## Quick facts

- Maker: Tencent Hy Team
- Input / output: Text and images in, text out
- Availability: Tencent Cloud, OpenRouter (tencent/hy4), CodeBuddy, WorkBuddy, Yuanbao, ima
- List price: $0.834 in / $2.501 out per 1M tokens
- Open weights: Planned, with a system card; not yet published
- Next: Hy4 Flash, a faster and cheaper variant

## FAQ

### Is Tencent Hy4 open source?

Not yet. The full Hy4 release is hosted only, through Tencent Cloud, OpenRouter and Tencent apps. Tencent says the weights will follow later with a comprehensive system card and vLLM and SGLang support. The earlier Hy4 preview from August 2026 is already open-weight on Hugging Face under Apache 2.0.

### How much does the Tencent Hy4 API cost?

Tencent's listed Hy4 API price is unchanged from the preview: $0.834 per million input tokens, $2.501 per million output tokens and $0.042 per million cached input tokens. OpenRouter's live listing for tencent/hy4, served by Tencent Cloud, currently shows $0.417 per million input tokens and $1.251 per million output tokens.

### How does Hy4 differ from Hy4 preview?

The full Hunyuan Hy4 accepts images as well as text, where the preview was text-only, and adds computer use across command-line and graphical apps. Tencent reports less hallucination in internal search tests, from 15.76% to 5.45%, and fewer speculative errors, from 23.1% to 5.6%. Unlike the preview, the full model's weights are not published yet.

### What is Hy4 Flash?

Hy4 Flash is a separate model Tencent plans to release in the near future. Tencent describes it as a variant of Hy4 with much better cost efficiency and faster inference. Tencent has not given a release date, size or price for Hy4 Flash.

## Links

- [OpenRouter Listing](https://openrouter.ai/tencent/hy4)
- [Unite.AI Report](https://www.unite.ai/tencent-releases-full-hy4-model-with-vision-and-computer-use/)
- [Caixin Report](https://www.caixinglobal.com/2026-11-05/tencent-launches-upgraded-hy4-ai-model-with-visual-understanding-102501068.html)
- [HN Discussion](https://news.ycombinator.com/item?id=50365780)