Tencent Hunyuan (Hy4 preview)
Category: Foundation Models / LLMs
Tencent's next-generation Hunyuan large language model — a 770B-parameter (49B active) Mixture-of-Experts model open-sourced under Apache 2.0, built for real-world productivity tasks across coding, office work, and scientific research. Tencent Hunyuan (Hy4 preview) was founded in 2023. The company is led by Pony Ma (Ma Huateng). Based in Shenzhen, Guangdong, China. Team size: 500+.
- Founded
- 2023
- Headquarters
- Shenzhen, Guangdong, China
- Team size
- 500+
Value proposition
A top-tier open-source LLM (770B total / 49B active MoE, 1M+ token context) that combines frontier-level intelligence with cost efficiency, deeply integrated into Tencent's productivity ecosystem (CodeBuddy, WorkBuddy, Yuanbao, ima) and available via low-cost API through Tencent Cloud TokenHub and OpenRouter.
Products and solutions
Hy4 preview (770B/49B MoE, 1M-token context, Apache 2.0 open weights), integrated into CodeBuddy (coding tool), WorkBuddy (work collaboration platform), Yuanbao and ima consumer AI apps, API via Tencent Cloud TokenHub and OpenRouter, FP8 quantized variant on ModelScope
Unique value
Open-source frontier MoE model (Apache 2.0) with aggressive cost efficiency — $0.834/M input, $2.501/M output, $0.042/M cache-hit tokens — undercutting GLM-5.3 by ~40% on input/output and Kimi K3 by ~6x on output, while ranking among the top tier of open models.
Target customer
Enterprise developers and businesses (B2B) needing coding agents and agentic workflows; office/analytics productivity users; game developers; scientific researchers; plus Tencent's own consumer AI apps (Yuanbao, ima)
Industries served
Software engineering, Office productivity/analytics, Game development, Finance, Security, Scientific research (molecular dynamics, condensed-matter physics, mathematics, AI R&D)
Technology advantage
770B-parameter MoE with only 49B active per token (efficiency + performance); 1M+ token context; deep co-design with Tencent's productivity products; demonstrated recursive self-improvement loop (model optimized its own training methods, data strategies, and inference system, boosting end-to-end throughput 31.8%); preview-first rapid iteration strategy
How they differentiate
Differentiates via a preview-first open-source strategy, aggressive price-performance (undercutting Chinese rivals on API pricing), deep integration into Tencent's own productivity ecosystem (CodeBuddy/WorkBuddy), and a recursive self-improvement loop where the model optimizes its own training and inference infrastructure.
Main competitors
Zhipu AI (GLM-5.3), Moonshot AI (Kimi K3), DeepSeek (V4 Pro), plus Alibaba Qwen, ByteDance Doubao, Baidu ERNIE, and closed frontier models from OpenAI and Anthropic
Key partnerships
Tencent Cloud TokenHub, OpenRouter, Hugging Face, ModelScope, GitHub (Tencent-Hunyuan org), GitCode, CNB
Major milestones
Aug 28, 2026: Released and open-sourced Hy4 preview (770B/49B MoE, 1M context, Apache 2.0), Jul 6, 2026: Officially released Hy3 with agent capabilities, Mar 2026: Tencent folded its AI Lab into the Hunyuan team in a major AI overhaul, hired former OpenAI researcher Yao Shunyu to lead AI efforts
Growth metrics
Hy4 preview (launched Aug 28 2026): heavy early OpenRouter traffic within 24–48h (top apps include Command Code ~2B tokens, Claude Code ~539M, pi ~388M, Panwright ~307M); prior-gen Hy3 saw >68x API call volume vs predecessor and ranked #1 on OpenRouter global LLM usage leaderboard within one week of launch.
Market positioning
Ranked among the top tier of open-source models globally; in internal blind evaluation (163 experts, 203 engineering tasks) scored 2.99/4.00, slightly ahead of GLM-5.3 (2.92) and Kimi K3 (2.94), while still trailing OpenAI and Anthropic's frontier closed models. Part of Tencent's push to catch up in China's heated LLM race.
Geographic focus
China (primary) and global open-source/API market via OpenRouter and Tencent Cloud international
Patents and IP
Open-sourced under Apache License 2.0; weights available on Hugging Face, ModelScope, GitCode, and CNB
About Pony Ma (Ma Huateng)
Co-founder, Chairman & CEO of Tencent Holdings; founded Tencent in 1998. One of China's most prominent tech entrepreneurs.
Latest news about Tencent Hunyuan (Hy4 preview)
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Official website: https://www.tencent.com/tencent-releases-and-open-sources-tencent-hy4-preview/
