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Tencent · Language model
Hy4 preview
tencent/hy4-preview- Language
Tencent: Hy4 preview is a mixture-of-experts model from Tencent, with 49B active parameters out of 770B total. It is designed for coding agents, complex tool-use workflows, and productivity tasks that...
Specifications
- Context window
- 1,048,576 tokens
- Max output
- 64,000 tokens
- Input
- text
- Output
- text
- Reasoning effort
- high, low, none
- Tokenizer
- Other
Supported parameters
Accepted by the model and forwarded as-is by the gateway.
- frequency_penalty
- 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
Use it
POST /api/v1/chat/completions · MCP chat · full reference
curl https://omnirail.org/api/v1/chat/completions \
-H "Authorization: Bearer $OMNIRAIL_KEY" -H "Content-Type: application/json" \
-d '{"model":"tencent/hy4-preview","messages":[{"role":"user","content":"Hello"}],"max_tokens":300}'