Tencent Hunyuan Hy3 Matches Gemini 3.5 Physics Quality at 35x Lower Cost

RP

Rohan Paul@rohanpaul_aiTECH

More good news for local LLMs. Tencent’s new Hunyuan Hy3 reaches Gemini 3.5-level physics quality for 35x less cost. Test was done on atomic[.]chat, a desktop app that runs LLMs locally. The prompt asked 4 models to build bowling, air hockey, and pool simulations. The harder part was preserving physical cause and effect. A strike needs collision timing, mass transfer, pin rotation, friction, and believable scattering. A pool break exposes the same weakness, because every wrong angle compounds immediately. Interestingly, DeepSeek-V4 spent the highest number of tokens (50,600 ), yet produced the weakest visual physics in this test.