Hy
Tencent's open-weight models, aimed at coding agents and tool use.
Hy is Tencent's open-weight family, successor to its Hunyuan models. The current preview is a mixture-of-experts model built for coding agents and complex tool-use workflows with a million-token context, and the line also carries small translation-specialised models you can run almost anywhere. Preview status is worth taking literally: good for trying, not for depending on.
At a glance — Hy4 preview
- Cost
- $0.834 in · $2.501 out per 1M tokensMid-range
- Memory
- 1M tokens — about 1,550 pages
- Reads
- Text
- Can do
- Use tools (agents)
- Structured output
- Thinking mode
- Reliability
- 98.62% uptime, last 24h
- Released
- Aug 28, 2026
Advanced details
- API model ID
tencent/hy4-preview- Max output
- 64K tokens
- Cached input
- $0.042 per 1M
- Tokenizer
- Other
Providers
The same model, hosted by different companies. OpenRouter picks one per request and falls back to the next if it fails.
| Provider | Input /1M | Output /1M | Cached /1M | Max output | Uptime 24h |
|---|---|---|---|---|---|
| Novita · fp8 | $0.834 | $2.501 | $0.042 | 64K | 98.62% |
| SiliconFlow · fp8 | $0.834 | $2.501 | $0.042 | 262K | 82.89% |
| Tencent · fp8 | $0.834 | $2.501 | $0.042 | 64K | 98.04% |
Supported parameters
- frequency_penalty
- include_reasoning
- max_completion_tokens
- max_tokens
- presence_penalty
- reasoning
- reasoning_effort
- repetition_penalty
- response_format
- seed
- stop
- structured_outputs
- temperature
- tool_choice
- tools
- top_k
- top_p
Live from OpenRouter, refreshed hourly.
Key info
- Pricing
- Open source
- Category
- Models
- Best for
- Expert
- Made by
- Tencent
- Weights
- Open
- Good for
- Coding agents and tool-use workflows