Hy3 via the Tokenator API
What the model is for
Hy3 is a 295B-parameter Mixture-of-Experts model from Tencent (21B active, 192 experts with top-8 routing) built for reasoning, agentic workflows, and real-world production use. It supports a configurable reasoning effort: a direct no-think mode by default, plus low and high chain-of-thought modes for complex math, coding, and multi-step problems. With a 256K context window, Hy3 targets long-horizon tasks, including improved coreference resolution, multi-turn constraint tracking, and stable tool-calling that generalizes across agent scaffoldings. Tencent positions it as a reliable, cost-effective option across coding, document processing, financial analysis, game development, and frontend design, with a strong emphasis on grounded, anti-hallucination behavior that answers when grounded and flags when evidence is missing rather than fabricating.
Specification
| Full name | Hy3 |
| API ID | hy3 |
| Model vendor | Tencent |
| Type | Text model (chat / completions) |
| Context window | 262.1K tokens |
| Max output | 262.1K tokens |
| Image input | no |
| Tokenator usage multiplier | 1.7× |
| Input modalities | text |
| Aliases | cursor-hy3 |
| Supported API formats | /v1/chat/completions /v1/responses /v1/messages |
| Upstream providers | 1 |
| Current status | available |
| Data updated | 2026-08-04 |
Upstream providers
| Provider | Multiplier |
|---|---|
| AiPartners Ltd | 1.7× |
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": "hy3", "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, OpenClaw.
See also
FAQ about Hy3
What is the API ID of Hy3?
hy3 — put this into the model field of your request.
What context window does Hy3 have?
262.1K tokens; max output is 262.1K tokens.
How many tokens will a request cost?
(input + output) × 1.7×. 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.