Physix Frontier · News Briefing Card (GeekPark · Nov 9, 2026)

Tencent Hunyuan Hy4 Launches: Top Open-Source Model on Finance Eval, Vision Debuts

KEY FACTS

Tencent Hunyuan Hy4 was released on November 4, with model weights open-sourced recently; the lightweight Hy4 flash version debuted alongside it.
Hy4 introduces visual understanding for the first time, able to analyze images, charts, screenshots and video, and supports computer operation.
On an evaluation of 579 real financial tasks, Hy4 scored 3.04, ranking first among open-source models.
Hy4's hallucination rate dropped from 12.95% in the preview version to 7.2%, and its guess-error rate fell from 23.1% to 5.6%.
Hy4 pricing remains unchanged: 6 yuan input, 18 yuan output, and 0.3 yuan per million tokens for cache hits.

KEY DATA

3.04 pointsFinancial task evaluation score

7.2%Hallucination rate

5.6%Guess-error rate

6 yuan per million tokensInput price

PHYSIX OBSERVATION

Tencent used real tasks in finance and visual code to prove Hy4 has reached the threshold of the top open-source tier, and the sharp drop in hallucination rate is a tangible benefit for research-oriented users. But the company also admits there is still a gap with top closed-source models, and the vision capability is not yet enough to decide the outcome. For the industry, cost-effectiveness plus long-horizon execution is the differentiated play; whether it can keep narrowing the gap will depend on Hy5.

Source: GeekPark report