Hy4

by Tencent

Zero data retention−50%New
tencent/hy4
Input
$0.58/1M tokens
Output
$1.75/1M tokens
Context
1Mtokens
Max output
66Ktokens
Knows to
-
Released
4 Nov 2026

About

The official release of Hy4 delivers comprehensive and substantial improvements over Hy4 Preview, with particularly strong gains in agentic capabilities and performance across a wide range of long-horizon, real-world productivity...

Pricing

Input$0.58per 1M prompt tokens
Output$1.75per 1M generated tokens, reasoning included
Cached input$0.03per 1M tokens read back from the prompt cache

50% off right now. The provider is running a promotion, and the developer API bills what the provider actually charged for your call plus our flat markup, so it reaches your bill with nothing to claim. The “from” figure is the cheapest endpoint serving the model; which one answers is the provider’s routing decision, so treat it as a floor. Promotions can end at any time.

What a request costs

Typical requestEachPer 1,000
Short chat reply1,500 in · 400 out$0.0016$1.58
Question over a long document40,000 in · 800 out$0.025$24.75
Agent tool step20,000 in · 1,200 out$0.014$13.78

At the developer-API rate, before any provider promotion or prompt-cache saving. In the app, the model picker shows what a message costs on your plan before you send it.

Call it from code

OpenAI-compatible: point any OpenAI SDK at https://api.privateer.pro/v1 and set model. Keys are created in the app under Settings.

cURL
curl https://api.privateer.pro/v1/chat/completions \
  -H "Authorization: Bearer $PRIVATEER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "tencent/hy4",
    "messages": [{ "role": "user", "content": "Hello" }],
    "reasoning": { "effort": "high" }
  }'
Python
import os
from openai import OpenAI

client = OpenAI(
    base_url="https://api.privateer.pro/v1",
    api_key=os.environ["PRIVATEER_API_KEY"],
)
reply = client.chat.completions.create(
    model="tencent/hy4",
    messages=[{"role": "user", "content": "Hello"}],
)
print(reply.choices[0].message.content)
JavaScript
import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://api.privateer.pro/v1",
  apiKey: process.env.PRIVATEER_API_KEY,
});
const reply = await client.chat.completions.create({
  model: "tencent/hy4",
  messages: [{ role: "user", content: "Hello" }],
});
console.log(reply.choices[0].message.content);

Parameters this model accepts

include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatstopstructured_outputstemperaturetool_choicetools

API reference → · How API billing works →

Prices are USD at the developer-API rate, as of 5 Nov 2026, rebuilt daily from the providers’ live catalogues. ← All models