Tencent Releases Open-Source Hunyuan Hy3 Model for Coding and Agents

Tencent officially released the open-source large language model Hunyuan Hy3. Recognized by many as one of the most notable open-source releases of the year, it boasts strong coding and agentic capabilities alongside high cost-effectiveness.

Core Specs and Capabilities

The model utilizes a 295B parameter Mixture-of-Experts (MoE) architecture, activating only 21B parameters per inference, and supports a maximum context window of 256K. According to posts, Hunyuan Hy3 is specifically built for agentic workflows and excels at agent-style coding tasks, capable of autonomously breaking down tasks, writing code, explaining logic, and iterating. Furthermore, the model demonstrates highly competitive performance across multiple coding, agent, and reasoning benchmarks.

Open Source and Trial Resources

Hunyuan Hy3 is released under the Apache 2.0 open-source license, with weights available on platforms like GitHub, Hugging Face, ModelScope, and GitCode. The official release includes a two-week free trial access via Hy AI Studio, and it is available on platforms like OpenRouter at prices significantly lower than competing models.

2026-07-08 ~ 2026-07-10 · 9 related posts

• Tencent Releases Open-Source Model Hy3 — socialwithaayan · 2026-07-08
• [source] Tencent Hunyuan Hy3 Benchmarks and Trial Links — HeyZoyaKhan · 2026-07-09
• Hunyuan Hy3 Free Trial and Resources — HeyZoyaKhan · 2026-07-09
• [source] Tencent Releases Open-Source MoE Model Hunyuan Hy3 — eyishazyer · 2026-07-09
• Hunyuan Hy3 Targets Coding and Agents — nikola_mr64990 · 2026-07-09
• Tencent Hy3 Released: Affordable and Great for Coding — kimmonismus · 2026-07-10
• Tencent Hy3 Release Info Update — kimmonismus · 2026-07-10

2 near-duplicate retellings: HeyZoyaKhan · eyishazyer