Tencent Releases Hy4, Ranking Among World's Leading Open-Source AI Models with New Visual and Computer-Use Capabilities

• Tencent Hy4 is released as an open-source large language model, introducing visual understanding and computer-use capabilities for interacting with command-line and graphical interfaces.
• In a blind evaluation by 213 financial professionals, Hy4 achieved the highest overall performance score of 3.04, outperforming DeepSeek-V4.1-Flash-1017 (2.97), Kimi K3.1 Pro (2.68), and GLM-5.3 (2.68).
• The model demonstrates significant efficiency gains, reducing hallucination rates from 12.95% to 7.2% and errors from unsupported assumptions from 23.1% to 5.6% compared to Hy4 Preview.
• Hy4 is available on Tencent Cloud TokenHub, WorkBuddy, and CodeBuddy, with API access via OpenRouter, Hermes, and OpenCode; pricing remains at US$0.90 per million input tokens and US$2.70 per million output tokens.

Performance and Benchmarks

• WorkBuddy evaluations show an average performance score of 83.18 and a pass rate of 96.15 percent, ranking first in nine of twelve mainland Chinese market scenarios.
• Game development capabilities improved by 19.1 percent in GameDev and 9.8 percent in GameLogic benchmarks compared to Hy4 Preview.
• Scientific research validation via TenureTrail assessed 123 executable tasks across seven disciplines, showing superior performance in mathematical construction and physical modeling.

Availability and Pricing

• Hy4 Flash is scheduled for release soon to offer greater cost-efficiency for high-value applications.
• WorkBuddy and CodeBuddy are available for free from November 4 to 15, 2026.
• Tencent Cloud TokenHub offers Hy4 at 50% off standard pricing through December 31, 2026.