Hy4 preview via the Tokenator API
What the model is for
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 require planning, context continuity, and sustained multi-step execution.
Specification
| Full name | Hy4 preview |
| API ID | hy4-preview |
| Model vendor | Tencent |
| Type | Text model (chat / completions) |
| Context window | 1M tokens |
| Max output | 64K tokens |
| Image input | no |
| Tokenator usage multiplier | 1.5× |
| Input modalities | text |
| Aliases | cursor-hy4-preview |
| Supported API formats | /v1/chat/completions /v1/responses /v1/messages |
| Upstream providers | 1 |
| Current status | available |
| Data updated | 2026-10-12 |
Upstream providers
| Provider | Multiplier |
|---|---|
| AiPartners Ltd | 1.5× |
A request goes to the first available provider by priority; if it fails, Tokenator switches to the next one.
Example request
curl https://api.tokenator.top/v1/chat/completions \ -H "Authorization: Bearer sk-your-tokenator-key" \ -H "Content-Type: application/json" \ -d '{ "model": "hy4-preview", "messages": [{"role": "user", "content": "Hello"}] }'
Compatible tools
The model can be used in any tool that accepts a custom base URL: Claude Code, Codex CLI, OpenCode, Cursor, Cline, Kilo Code, Cherry Studio, DeepSeek Harness, Hermes, Pi, OpenClaw.
See also
FAQ about Hy4 preview
What is the API ID of Hy4 preview?
hy4-preview — put this into the model field of your request.
What context window does Hy4 preview have?
1M tokens; max output is 64K tokens.
How many tokens will a request cost?
(input + output) × 1.5×. See the documentation for details.
Which tools support this model?
Any tool that accepts a custom base URL: Claude Code, Codex CLI, OpenCode, Cursor, Cline, Kilo Code. Setup guides are in the integrations section.