# Hy4 Preview

> Hy4 Preview is Tencent Hunyuan's 770B/49B-active MoE for agents, coding, office automation, and complex tool use, with a 1M-token context window.

**ID**: `tencent/hy4-preview`  
**Creator**: tencent  
**Category**: text  
**Context**: 1M tokens  
**Pricing**: $0.83 / $2.50 per 1M · billed by your provider (BYOK)  
**Released**: 2026-08-28  
**Web page**: https://anyrouter.dev/model/tencent/hy4-preview

**Input modalities**: text  
**Output modalities**: text  

**Capabilities**: chat, streaming, reasoning, function-calling, thinking, coding

## Usage

**Endpoint**: `POST https://anyrouter.dev/api/v1/chat/completions`

```bash
curl https://anyrouter.dev/api/v1/chat/completions \
  -H "Authorization: Bearer $ANYROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "tencent/hy4-preview",
  "messages": [
    {
      "role": "user",
      "content": "Say hi in 3 words."
    }
  ]
}'
```

## Providers

| Provider | Input | Output |
| --- | --- | --- |
| aihubmix-byok | $0.84/M (list) | $2.54/M (list) |
| vercel-byok | $0.83/M (list) | $2.50/M (list) |

BYOK routes are billed by your own provider key — AnyRouter charges $0. Rates marked (list) are the provider's published list price.

## Source

- Upstream docs: https://aihubmix.com/model/hy4-preview