Tencent Hunyuan ships Hy4 preview upgrade: same quality, fewer turns, lower token usage
xeophon · x · 2026-09-07
Tencent Hunyuan announced an upgrade to Hy4 preview, addressing user-flagged issues of long thinking and over-verification on complex tasks. The team says task quality is unchanged while turns and both input/output tokens dropped, confirmed by benchmarks and human eval. The underlying Hy4 preview is an open-source frontier model with 770B total params, 49B active and 1M context, pitched for productivity at a consistently affordable price. Available via WorkBuddy, HuggingFace and GitHub.
Related event: Tencent Hunyuan Upgrades Hy4 Preview to Cut Token Usage(2 posts)→
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