# Hy3

Canonical page: https://agentsky.dev/models/tencent/hy3
JSON record: https://gateway.agentsky.dev/v1/models/tencent/hy3

Hy3 is a text-input model by Tencent, available through the AgentSky API as tencent/hy3 at $0.153186 per million input tokens and $0.612744 per million output tokens, with a 262K context window.

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.

## Facts

- **Model id:** `tencent/hy3`
- **Maker:** Tencent
- **Input modalities:** Text
- **Context:** 262K
- **Max output tokens:** 128,000
- **Aliases:** `tencent/hy3`, `hy3`

## Pricing

USD per million tokens on the default plan. Signed-in pages show your own plan's price; every response carries the cost of that call in `usage.cost`.

| Meter | Per 1M tokens |
|---|---|
| Input | $0.153186 |
| Output | $0.612744 |
| Cache read | $0.038297 |
| Cache write | $0.153186 |

## Use it

Anthropic wire base URL: `https://gateway.agentsky.dev`. OpenAI wire base URL: `https://gateway.agentsky.dev/v1`. Authenticate with an AgentSky API key (`ast_…`) and pass the model id.

### OpenAI SDK

```js
import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://gateway.agentsky.dev/v1",
  apiKey: process.env.AGENTSKY_API_KEY, // ast_…
});

const completion = await client.chat.completions.create({
  model: "tencent/hy3",
  messages: [{ role: "user", content: "Summarise this ticket." }],
});
console.log(completion.usage.cost); // USD, in the response
```

### Codex

```bash
export OPENAI_BASE_URL="https://gateway.agentsky.dev/v1"
export OPENAI_API_KEY="$AGENTSKY_API_KEY"

codex --model tencent/hy3
```

### OpenCode

```js
// opencode.json — then switch models any time with /models
{
  "$schema": "https://opencode.ai/config.json",
  "provider": {
    "agentsky": {
      "npm": "@ai-sdk/openai-compatible",
      "name": "AgentSky",
      "options": {
        "baseURL": "https://gateway.agentsky.dev/v1",
        "apiKey": "{env:AGENTSKY_API_KEY}"
      },
      "models": { "tencent/hy3": {} }
    }
  }
}
```

## Questions

### What is Hy3?

Hy3 is a model from Tencent. 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.

### How much does Hy3 cost?

$0.153186 / $0.612744 per million tokens at the prices shown, for input and output respectively. The exact price of every call comes back in the response as usage.cost, so you never have to compute it.

### What is the context length of Hy3?

262K tokens, and it writes up to 128K tokens in one reply. These are the limits listed for this model in the current AgentSky catalog.

### Which clients can call Hy3?

Anything that speaks the OpenAI-compatible request format. Point the client's base URL at the gateway, use an AgentSky key, and pass tencent/hy3 as the model.

### How do I name Hy3 in a request?

The gateway accepts tencent/hy3, hy3. Any of them resolves to the same model, so an existing integration usually needs no change to its model string.

### Can Hy3 read images?

No image input is listed for this model. Its supported input types are text. For screenshots or photographs, choose a model that lists image input.

### What output can Hy3 produce?

The listed output types are text. This model returns text. Producing image, video or audio files requires a suitable tool or another model; it is not included in text generation.

### How should I plan a long prompt for Hy3?

Plan your instructions, conversation history and source material around the 262K-token context limit, leaving room for the response. The listed response ceiling is 128K tokens. A larger window lets you supply more relevant material; it does not make unrelated content useful.

### What would 10,000 input tokens and 2,000 output tokens cost with Hy3?

At the displayed input and output rates, the model-token subtotal is $0.00275735. This example assumes uncached input and excludes additional pricing categories, tool calls and agent runtime. Actual usage determines the final charge.

### How is cached input priced for Hy3?

The catalog lists $0.038297 per million cache-read tokens. Cache writes are listed at $0.153186 per million tokens. Repeating a prompt does not by itself guarantee a cache hit; only usage reported as cached receives that rate.

### Does the Hy3 token price cover an entire agent task?

No. The model price covers the model usage described above. A task can also incur tool and runtime charges, and several model calls may be needed to complete it. Compare total task usage when evaluating cost.

### How do I use Hy3 on AgentSky?

This model is listed for API use. Use the model ID tencent/hy3 with a supported gateway operation. The agent composer is not offered here because the current agent model menu has no compatible match.