# Hy-MT2-1.8B

> Hy-MT2-1.8B is an open-weight language model from Tencent (Hunyuan), released on 20 Aug 2026. It accepts text and generates text, with a 8K-token context window and up to 4K output tokens per response. As of 4 Oct 2026, the lowest listed API price is $0.04 per million input tokens and $0.18 per million output tokens (OpenRouter), across 1 provider we track.

Source page: https://www.aimodel.directory/models/hy-mt2-1-8b
Last verified: 4 Oct 2026

## Specifications

- **Developer:** Tencent (Hunyuan)
- **Release date:** 20 Aug 2026 (source: OpenRouter, https://openrouter.ai/tencent/hy-mt2-1.8b)
- **Status:** Generally available
- **Weights:** Open weights (source: Hugging Face, https://huggingface.co/tencent/Hy-MT2-1.8B)
- **License:** apache-2.0 (source: Hugging Face, https://huggingface.co/tencent/Hy-MT2-1.8B)
- **Parameters:** 2B (source: Hugging Face, https://huggingface.co/tencent/Hy-MT2-1.8B)
- **Context window:** 8K (8,192 tokens) (source: OpenRouter, https://openrouter.ai/tencent/hy-mt2-1.8b)
- **Max output:** 4K tokens (source: OpenRouter, https://openrouter.ai/tencent/hy-mt2-1.8b)
- **Input:** Text (source: OpenRouter, https://openrouter.ai/tencent/hy-mt2-1.8b)
- **Output:** Text (source: OpenRouter, https://openrouter.ai/tencent/hy-mt2-1.8b)
- **Reasoning mode:** No (source: OpenRouter, https://openrouter.ai/tencent/hy-mt2-1.8b)
- **Tool calling:** No (source: OpenRouter, https://openrouter.ai/tencent/hy-mt2-1.8b)
- **Structured output:** No (source: OpenRouter, https://openrouter.ai/tencent/hy-mt2-1.8b)
- **Hugging Face:** tencent/Hy-MT2-1.8B (source: Hugging Face, https://huggingface.co/tencent/Hy-MT2-1.8B)

## API pricing (USD per 1M tokens)

| Provider | Input | Output | Cached input | Context |
|---|---|---|---|---|
| OpenRouter | $0.04 | $0.18 | – | 8K |

## FAQ

### What is the context window of Hy-MT2-1.8B?

Hy-MT2-1.8B has a context window of 8,192 tokens (8K) and can generate up to 4,096 tokens in a single response, according to OpenRouter.

### How much does the Hy-MT2-1.8B API cost?

Hy-MT2-1.8B is listed from $0.04 per million input tokens and $0.18 per million output tokens (OpenRouter). Prices last verified 4 Oct 2026.

### Is Hy-MT2-1.8B open source?

Hy-MT2-1.8B is an open-weight model: its weights are published on Hugging Face as tencent/Hy-MT2-1.8B under the apache-2.0 license. Check the license terms before commercial use.

### When was Hy-MT2-1.8B released?

Tencent (Hunyuan) released Hy-MT2-1.8B on 20 Aug 2026, according to OpenRouter.

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Data licensed CC BY 4.0. Cite as: AI Model Directory, "Hy-MT2-1.8B", https://www.aimodel.directory/models/hy-mt2-1-8b