Hy4 preview
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...
The figures
- Made by
- Tencent
- Model ID
- tencent/hy4-preview
- Input
- $0.751 per million tokens
- Output
- $2.251 per million tokens
- Context window
- 1.05M tokens
- Longest answer
- 64K tokens
- Takes in
- text
- Gives back
- text
- Reasoning
- Yes
- Tool calling
- Yes
- Reads images
- No
- Open weights
- Yes
- Released
- 28 Aug 2026
Read on 3 Oct 2026.