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Tencent released Hy4, an open-weight LLM with 770B total parameters and 1M token context, enabling MENA enterprises to process massive documents at lower cost.

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Tencent Hy4: New Open-Weight LLM with 770B Parameters and 1M Context

Tencent Launches Hy4

FAQ

What is Tencent's Hy4 model?

Hy4 is an open-weight LLM from Tencent with 770B total parameters, 49B active, and 1M token context, designed for complex reasoning and long-text processing.

How does Hy4 compare to Hy3?

Hy4 is much larger: 770B vs 295B params, 1M vs 256K context, and 1.56TB vs 598GB size, offering higher capabilities for long-document tasks.

Can MENA companies use Hy4 now?

Yes, the model is downloadable from Hugging Face or accessible via OpenRouter, but requires strong GPU infrastructure for local deployment.

What reasoning levels does Hy4 support?

Hy4 supports two levels: 'high' (default) for deep reasoning and 'no_think' to disable reasoning, giving developers flexibility in speed and quality.

Source: Simon Willison (LLM & tools)

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