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ModelActive

Hy4 preview

Tencent

Tencent: Hy4 preview is a mixture-of-experts model from Tencent, with 49B active parameters out of 770B total. It is designed for coding agents, complex tool-use workflows, and productivity tasks that...

Updated 31 min ago · first seen 11 Sept 2026

model_01M294WVPRVK9PVYGKXRK6Y510

Context
1.05M tokens
T2 · 31 min ago
Released
28 Aug 2026
T2 · 31 min ago

Specification

Release date
28 Aug 2026

Source:OpenRouter public model & pricing listingT2observed 31 min agomedium

Context window
1.05M tokens

Source:OpenRouter public model & pricing listingT2observed 31 min agomedium

Max output
64K tokens

Source:OpenRouter public model & pricing listingT2observed 31 min agomedium

Modalities
text

Source:OpenRouter public model & pricing listingT2observed 31 min agomedium

Input modalities
text

Source:OpenRouter public model & pricing listingT2observed 31 min agomedium

Output modalities
text

Source:OpenRouter public model & pricing listingT2observed 31 min agomedium

Hugging Face repo
tencent/Hy4-preview

Source:OpenRouter public model & pricing listingT2observed 31 min agomedium

Openrouter id
tencent/hy4-preview

Source:OpenRouter public model & pricing listingT2observed 31 min agomedium

Supported parameters
include_reasoning, max_completion_tokens, max_tokens, reasoning, reasoning_effort, response_format, stop, structured_outputs, temperature, tool_choice, tools

Source:OpenRouter public model & pricing listingT2observed 31 min agomedium

Each value shows its source, tier and observation time. Conflicting claims are kept side by side and flagged — never averaged. How AI Atlas records facts →

Provenance

Attributed facts

13

Source tiers

T213

Freshest observation

31 min ago

Conflicts

None