TencentPartner-hosted · no ZDR

Tencent Hy4 Preview

Name: Tencent Hy4 Preview
Brand: Tencent
Price: 1.668 USD

Tencent Hy4 Preview is an early version of the next model in Tencent's Hy line, published as a preview. Through our API it takes text, reasons before answering, calls tools and returns structured output over a context of up to a million tokens. A preview may change or be withdrawn by the developer — keep that in mind before you build on it. It is served by a third-party inference provider through our partner, not on Heabsy hardware: the same key and the same invoice, but no zero data retention, and the request may be processed outside the EEA.

model id: hy4-preview

from openai import OpenAI client = OpenAI(    api_key="hb-...",    base_url="https://api.heabsy.com/v1",) r = client.chat.completions.create(    model="hy4-preview",    messages=[{"role": "user", "content": "Hello"}],)print(r.choices[0].message.content)

curl https://api.heabsy.com/v1/chat/completions \  -H "Authorization: Bearer $HEABSY_API_KEY" \  -H "Content-Type: application/json" \  -d '{    "model": "hy4-preview",    "messages": [{"role": "user", "content": "Hello"}]  }'

import OpenAI from "openai"; const client = new OpenAI({  apiKey: process.env.HEABSY_API_KEY,  baseURL: "https://api.heabsy.com/v1",}); const r = await client.chat.completions.create({  model: "hy4-preview",  messages: [{ role: "user", content: "Hello" }],});console.log(r.choices[0].message.content);

Use it in Claude Code · OpenCode · Cline · Kilo Code · SillyTavern · n8n

Context

1M tokens

Serving

Partner provider · no ZDR

Tool calling

Reasoning

Structured output

Vision

Input

$1.668/ 1M

Cached input

$0.063/ 1M

Output

$5.002/ 1M

Price list, updated 21 October 2026. No minimum spend, no subscription.

Technical details

Context window: 1M tokens
Max output: 64,000 tokens
Throughput limit: —
Tokenizer: Other
Streaming: yes
Open weights: —

Supported parameters

max_tokens: 1 … 64000

Partner-hosted: same key and invoice, no ZDR

This model is served by a third-party inference provider through our partner, not on Heabsy hardware. You keep one key and one invoice from an EU company, but there is no zero data retention: the provider handles the request under its own policy, and processing may take place outside the EEA. For personal or regulated data, use a model on Heabsy hardware.

Questions about this model

›Where is Tencent Hy4 Preview computed?

At a third-party inference provider that serves this model through our partner, outside our own infrastructure. Where exactly the request is computed is not fixed and may be outside the EEA. The contract and the invoice stay with our EU company.

›Does Tencent Hy4 Preview store prompts and completions?

There is no zero-data-retention guarantee for this model: the request goes to a third-party provider, which handles it under its own policy and may keep logs. For personal or regulated data, use a model on Heabsy hardware.

›How large is the Tencent Hy4 Preview context window?

1M tokens, with up to 64,000 tokens of output.

›What does Tencent Hy4 Preview cost?

$1.668 per million input tokens and $5.002 per million output tokens. No minimum spend and no subscription; the same price list covers the API and the invoice.

›Is there a throughput limit on Tencent Hy4 Preview?

The catalog does not report a throughput limit for this model.