Hy4 Preview API
NewLLMHy4 Preview is Tencent Hunyuan's preview reasoning route with a 256K context and structured tool use.
- Input · USD / 1M tokens$0.6575 USDOfficial price
$0.8219 USD - Output · USD / 1M tokens$1.973 USDOfficial price
$2.466 USD - Savings20%
- Context256K
- Last verified2026-09-05
- View tool pricing and billing rules
What are we making today?
Bring an idea, a question, or a first draft.
01
Where it fits
Hy4 Preview is Tencent Hunyuan's preview reasoning route with a 256K context and structured tool use.
Choose Hy4 Preview when you want to evaluate Tencent's newest Hunyuan route at 20% below the listed rate.
02
Model capabilities
Tool use
Can select and call tools in agent workflows that support structured tool use.
03
OpenAI-compatible API
Keep your client and change the base URL, API key, and model ID.
curl https://api.omniakey.com/v1/chat/completions \
-H "Authorization: Bearer $OMNIAKEY_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "hy4-preview",
"messages": [{"role": "user", "content": "Explain this codebase"}],
"stream": true
}'04
Compatible coding tools
More Tencent Hunyuan models
Frequently asked questions
How much does Hy4 Preview cost on OmniaKey?
OmniaKey charges $0.6575 USD per 1M input tokens and $1.973 USD per 1M output tokens, in USD. Official prices are $0.8219 USD and $2.466 USD; you save 20%.
What is the context window for Hy4 Preview?
The listed context window is 256K. Actual usable limits can also depend on the client and upstream request format.
Which coding tools work with Hy4 Preview?
The current catalog lists compatibility with Codex, Cursor, Cline, Aider. Use the model ID shown on this page when the client supports model selection.