Tencent Releases Hy4: 770B Params, 1M+ Context, Aggressive Pricing
eyishazyer · x · 2026-08-28
Tencent released Hunyuan Hy4 preview (open-sourced), featuring 770B total params (49B active) and a context window exceeding 1 million tokens. Internal evals place it slightly above GLM-5.3 and Kimi K3, while it beats DeepSeek V4 Pro on Terminal Bench 2.1 and doubles its predecessor's score on DeepSWE. Pricing is aggressive at 6 CNY input / 18 CNY output per million tokens. The architecture openly borrows attention mechanisms from DeepSeek and GLM.
Related event: Tencent Open-Sources Hunyuan Hy4 Preview: 770B MoE with 1M Context(28 posts)→
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