[HN]score: 0.39

Tencent Releases Hy4 Preview 770B MoE Model with 1M Context

August 29, 2026

Tencent open-sourced Hy4 preview, a Mixture-of-Experts model featuring 770B total parameters and 49B active parameters. The model supports context windows exceeding 1M tokens and is accessible via Tencent Cloud TokenHub and OpenRouter APIs.

HOW THIS AFFECTS YOU

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builderYou can integrate a high-parameter MoE model with massive context into your production workflows via OpenRouter.

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researcherThe 49B active parameter architecture offers a new large-scale MoE checkpoint for studying efficiency in 1M+ context windows.

read original ↗tencent.com

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