Hy4 Preview is Tencent's 770B-parameter mixture-of-experts model with 49B active parameters. It is designed for coding agents, complex tool-use workflows, and productivity tasks, with a 1M-token context window and configurable reasoning effort.
Added Aug 28, 2026
Context Window
1.0M
Max Output
64.0K
Input Price (Auto)
$0.83/1M
Output Price (Auto)
$2.50/1M
Cache Read (Auto)
$0.042/1M
Capabilities
Benchmarks
Benchmarks
Performance metrics and benchmarks
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