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 | 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 | 2026-08-28 |
Upstream providers
| Provider | Multiplier |
|---|---|
| Unified LLM API | 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, 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) × 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.