Hy4

Name: Tencent: Hy4
Brand: tencent
SKU: tencent/hy4
Price: 0.4587 USD
Availability: InStock

tencent/hy4

$0.4587 in · $1.37555 out per 1M tokens1M contextNov 4, 2026

about 0.09¢ a message

A typical message: about 500 tokens you send and 500 it writes.

Chat with Hy4

Call it from code Lock this price

Spec sheet

Published facts from the catalog, billed prices and what we measured here. Anything not measured says so.

Price, billed here

Input, per 1M tokens: $0.4587provider $0.417
Output, per 1M tokens: $1.37555provider $1.2505
Cached input, per 1M: $0.0231provider $0.021
Margin: +10%

Context and formats

Context window: 1,048,576 tokens
Longest answer: 65,536 tokens
Reads: text and images
Makes: text
First listed: 2026-11-04

Measured here, last 7 days

First token, median: not measured
Answered without error: not measured

Tools and JSON

Tool calling: declaredthe provider's claim, not yet measured here
JSON output: declaredthe provider's claim, not yet measured here

Price and latency history as JSON: GET /api/planet/history?id=tencent/hy4.

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...

In Tencent's words.

Try it here

Cmd+Enter sends

The answer appears here.

Measured here

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Call it

Use one OpenAI compatible endpoint, this model's id and an am_live_ key from the dashboard. You can also try it in chat first with no key.

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

Everything else is in the docs.

Embed this

A badge showing this model's live price per million tokens, as billed here, for a README or a site. It links back to this page.

<a href="https://useantimatter.com/planet/tencent/hy4"><img src="https://useantimatter.com/api/badge/price?id=tencent%2Fhy4" alt="Hy4 price on Antimatter" height="28"></a>

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