Tencent Hunyuan Releases Hy4 Flagship Model with Vision and Computer Use, Open Weights Coming

On November 4, Tencent Hunyuan officially released its flagship model Hunyuan Hy4. Compared with the preview version, the official release significantly scales up both pretraining and post-training, adds vision capabilities and computer-use support for the first time, and is claimed by the company to rank among the strongest open-source models overall.

Confirmed

• Hy4 adds fine-grained image processing, chart analysis, and command-line vision and computer-operation capabilities; it can drive terminals and control a computer via the screen, making it the first vision-capable model in the Hy series
• The model is now available on Tencent Cloud, OpenRouter, CodeBuddy, WorkBuddy, and Hy AI Studio
• The company announced it will open-source the Hy4 weights
• It scores 78.9 on the OSWorld 2.1 benchmark, narrowing the gap with Claude Opus 5.5 (81.8) to single digits, ahead of GLM 5.3, DeepSeek-V4.1-Flash, Kimi K3.1 Pro, and GPT 6.1
• Official use cases listed include finance, frontend development, gaming, office work, and research, with emphasis on responsible building in cybersecurity and biosafety
• Blogger XianbaoQIAN, resharing the release news, praised the HY series for its honest evaluation practices and noted that paper author Shunyu Yao contributed to the work; the shared chart covers a 12-benchmark comparison, with Hy4 standing out on ProgramBenCh, FrontierCode 2, and others

Why it matters

Hy4 is closing in on frontier closed-source models on benchmarks like OSWorld that reflect real-world computer use; combined with the plan to open-source the weights, it further narrows the open/closed gap on agent and computer-use tasks, giving the open-source community a strong new contender.

2026-11-04 ~ 2026-11-04 · 10 related posts

• Tencent Hunyuan launches Hy4: vision, computer use, and top open-source benchmark results — 腾讯混元 · 2026-11-04
• HY4 Shows Huge Capability Jump Over Preview, Wins Praise for Honest Evals — Xianbao_QIAN · 2026-11-04
• [source] Tencent launches flagship Hy4 with native vision, plans open weights at same API price — 智东西 · 2026-11-04
• [source] Tencent Hunyuan Launches Hy4 with Vision, Claims Top Tier Among Open Models — TencentHunyuan · 2026-11-04
• [source] Tencent launches flagship Hy4 model, open weights and system card promised soon — testingcatalog · 2026-11-04
• Tencent Hy4 benchmark charts: 78.9 on OSWorld, closing on Claude Opus 5.5 — heyshrutimishra · 2026-11-04
• Tencent's Hy4 scores 78.9 on OSWorld and the weights will be open-sourced — heyshrutimishra · 2026-11-04
• Hy4 tops open models in finance eval at 3.04, hallucination rate cut to 5.45% — heyshrutimishra · 2026-11-04
• Tencent's Hy4 rebuilds 7M-cell embryo in 1.5h, trains self-improving models — heyshrutimishra · 2026-11-04
• Tencent's Hy4 agent self-trained a smaller model that beat Tencent's own baseline — heyshrutimishra · 2026-11-04