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Introducing Hy4 Preview

This story is from 2026-08-29. It is preserved in the archive; the latest stories are on the live feed.

Introducing Hy4 Preview New open weight text input (no vision) LLM from Chinese company Tencent today: 770B total parameters, 49B active parameters, 1M token context window, 1.56TB on Hugging Face . This is a big size increase from their previous Hy3 in July, which was 295B, 21B active, 256,000 con…

Read the full story at Simon Willison's Weblog ↗

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  1. 2026-08-29 23:53 · Simon Willison's Weblog
    Introducing Hy4 Preview

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