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Tencent unveils 770B parameter Hy4 Preview AI model with 1M context window · 2 sources tracked

By PulseAugur Editorial · [2 sources] ·

Tencent has released its new AI model, Hy4 Preview, boasting 770 billion total parameters and 49 billion active parameters. This open-weight model features a 1 million token context window and utilizes a Mixture-of-Experts architecture, activating only a portion of its parameters per token. The release highlights the rapid advancements in the open-weight AI landscape. AI

IMPACT Accelerates the open-weight AI race with a large parameter count and context window.

RANK_REASON Frontier-lab model release with system card [lever_c_demoted from frontier_release: ic=2 ai=1.0]

Read on Mastodon — mastodon.social →

AI-generated summary · Google Gemini · from 2 sources. How we write summaries →

Tencent unveils 770B parameter Hy4 Preview AI model with 1M context window · 2 sources tracked

How we ranked this

Signal score
0 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Significant
Frontier-lab model release with system card [lever_c_demoted from frontier_release: ic=2 ai=1.0]
Source corroboration
2 independent sources
Multiple independent publishers reporting the same story raises confidence that it's real and newsworthy.
Topics
model release
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
47 days old
Aged out of breaking-news scoring windows; ranking reflects the durable signal from the full source set.

Full methodology in our editorial standards.

COVERAGE [2]

  1. Mastodon — mastodon.social TIER_1 English(EN) · chipsterkids ·

    Tencent just dropped a 770B parameter AI model. 🤯 Meet Hy4 Preview. 🧠 770B total parameters ⚡ 49B active parameters 📚 1M-token context window 🔓 Open-weight 💻 Co

    Tencent just dropped a 770B parameter AI model. 🤯 Meet Hy4 Preview. 🧠 770B total parameters ⚡ 49B active parameters 📚 1M-token context window 🔓 Open-weight 💻 Coding, research, productivity & AI agents Hy4 uses a Mixture-of-Experts architecture, so only a portion of the model is a…

  2. Mastodon — mastodon.social TIER_1 English(EN) · chipsterkids ·

    Tencent just dropped a 770B parameter AI model. 🤯 Meet Hy4 Preview. 🧠 770B total parameters ⚡ 49B active parameters 📚 1M-token context window 🔓 Open-weight 💻 Co

    Tencent just dropped a 770B parameter AI model. 🤯 Meet Hy4 Preview. 🧠 770B total parameters ⚡ 49B active parameters 📚 1M-token context window 🔓 Open-weight 💻 Coding, research, productivity & AI agents Hy4 uses a Mixture-of-Experts architecture, so only a portion of the model is a…

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