# Hy3 preview

> Hy3 preview is an open-weight language model from Tencent (Hunyuan), released on 20 Apr 2026. It accepts text and generates text, with a 262K-token context window and up to 236K output tokens per response. As of 4 Oct 2026, the lowest listed API price is $0.18 per million input tokens and $0.60 per million output tokens (OpenRouter), across 1 provider we track.

Source page: https://www.aimodel.directory/models/hy3-preview
Last verified: 4 Oct 2026

## Specifications

- **Developer:** Tencent (Hunyuan)
- **Release date:** 20 Apr 2026 (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/openrouter/models/tencent/hy3-preview.toml)
- **Status:** Generally available (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/openrouter/models/tencent/hy3-preview.toml)
- **Weights:** Open weights (source: Hugging Face, https://huggingface.co/tencent/Hy3-preview)
- **Parameters:** 299B (source: Hugging Face, https://huggingface.co/tencent/Hy3-preview)
- **Context window:** 262K (262,144 tokens) (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/openrouter/models/tencent/hy3-preview.toml)
- **Max output:** 236K tokens (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/openrouter/models/tencent/hy3-preview.toml)
- **Input:** Text (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/openrouter/models/tencent/hy3-preview.toml)
- **Output:** Text (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/openrouter/models/tencent/hy3-preview.toml)
- **Reasoning mode:** Yes (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/openrouter/models/tencent/hy3-preview.toml)
- **Tool calling:** Yes (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/openrouter/models/tencent/hy3-preview.toml)
- **Structured output:** No (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/openrouter/models/tencent/hy3-preview.toml)
- **Hugging Face:** tencent/Hy3-preview (source: Hugging Face, https://huggingface.co/tencent/Hy3-preview)

## API pricing (USD per 1M tokens)

| Provider | Input | Output | Cached input | Context |
|---|---|---|---|---|
| OpenRouter | $0.18 | $0.60 | $0.06 | 262K |

## FAQ

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

Hy3 preview has a context window of 262,144 tokens (262K) and can generate up to 235,929 tokens in a single response, according to models.dev.

### How much does the Hy3 preview API cost?

Hy3 preview is listed from $0.18 per million input tokens and $0.60 per million output tokens (OpenRouter). Prices last verified 4 Oct 2026.

### Is Hy3 preview open source?

Hy3 preview is an open-weight model: its weights are published on Hugging Face as tencent/Hy3-preview. Check the license terms before commercial use.

### When was Hy3 preview released?

Tencent (Hunyuan) released Hy3 preview on 20 Apr 2026, according to models.dev.

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Data licensed CC BY 4.0. Cite as: AI Model Directory, "Hy3 preview", https://www.aimodel.directory/models/hy3-preview