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Hy4
● liveLive in preview — 770B total / 49B active MoE; Apache 2.0 open weights; $0.83/$2.50 per 1M; 1M ctx; the GA flagship is still ahead. On the board as live since 2026-08-28 — the watchers keep tracking it: lineup changes, pricing moves and deprecations all alert.
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Timeline
Hy4: quick answers
Is Hy4 out?
Yes, in limited preview since August 28, 2026. General availability has not happened yet, and ArtificialWatch is still watching for it.
When was Hy4 released?
August 28, 2026.
Who makes Hy4?
Tencent.
Is Hy4 open weights?
Yes. Hy4 is released with open weights.
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<a href="https://artificialwatch.com/model/hy4">Hy4 on ArtificialWatch</a>ArtificialWatch, "Hy4", https://artificialwatch.com/model/hy4Know when the next frontier model drops. Free.
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