# Tencent Hy3 API

> Hy3 is a 295B-parameter Mixture-of-Experts model from Tencent (21B active, 192 experts with top-8 routing) built for reasoning, agentic workflows, and real-world production use. It supports configurable reasoning effort.

Source: https://www.sandbase.ai/models/tencent/hy3
API reference: https://www.sandbase.ai/models/tencent/hy3/docs

## Facts

- Provider: Tencent
- Type: Language model
- Model ID: `tencent/hy3`
- Price: $0.13 per 1M input tokens, $0.53 per 1M output tokens
- Context window: 262.1K tokens, up to 128K output tokens
- Capabilities: chat, reasoning, structured output, function calling
- Billing: pay per use from one SandBase balance; no provider account or subscription needed

## Call it

- Chat Completions API: `POST https://api.sandbase.ai/v1/chat/completions`

```bash
curl -X POST https://api.sandbase.ai/v1/chat/completions \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "tencent/hy3",
  "messages": [
    {
      "role": "user",
      "content": "Hello"
    }
  ],
  "max_tokens": 2048
}'
```

## FAQ

### How do I call Tencent Hy3 through SandBase?

Create a SandBase API key, then send requests with the model ID "tencent/hy3" to Chat Completions API (/v1/chat/completions) at https://api.sandbase.ai. The request examples on this page show the exact payload.

### How much does Tencent Hy3 cost?

$0.13 per 1M input tokens and $0.53 per 1M output tokens, billed per request from your SandBase balance. Discounts, when available, are shown in the pricing on this page.

### What is the context window of Tencent Hy3?

262.1K tokens of context, with up to 128K output tokens per response.

### Which features does Tencent Hy3 support?

Tencent Hy3 supports reasoning, function calling, structured output. See Specifications above for the full list.

### Do I need a separate Tencent account?

No. One SandBase API key and balance gives you access to Tencent Hy3 and the other models in the catalog; you do not need to sign up with Tencent separately.