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  1. Home
  2. Models
  3. Hy4 Preview
Updated Sep 2, 2026
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Openings

How Hy4 Preview starts an answer

The first lines of 5 of its 24 written answers. Formatting stripped, words untouched.

Adversarial Contract Review

Here is a contract for a software consulting engagement: --- SOFTWARE CONSULTING AGREEMENT This Agreement is entered into between TechCorp…

1,433 words
This contract is extremely one-sided and heavily favors the Client (TechCorp Solutions Inc.). Several of these clauses are not just unfair; in many jurisdictions, they may be considered "unconscionable" (so unfair that they shock the conscience) or illegal, particularly regarding non-competes and liability.
Read the full answer

Ethical Dilemma with Stakeholders

You're the CEO of a pharmaceutical company. Your best-selling drug ($2B annual revenue, used by 4 million patients for chronic pain) has…

1,332 words
This is a defining moment for the company’s integrity, long-term viability, and moral compass. The core tension is between short-term financial protection and long-term trust, legal exposure, and—most importantly—patient safety. Ethically and legally, the company has a duty to act on credible safety signals.
Read the full answer

Historical Counterfactual Analysis

If the transistor had been invented in 1920 instead of 1947, trace the likely technological, economic, and geopolitical implications through…

1,253 words
This is a counterfactual scenario of massive proportions. The transistor is the fundamental building block of the modern world; moving its invention from Bell Labs in 1947 to 1920 (perhaps an accidental discovery during early radio research) grants humanity an extra 27 years of development during a period defined by…
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Movie Analysis

Analyze the themes, symbolism, and cinematography in the movie "Blade Runner 2049" and how they connect to the original film. Provide a…

1,091 words
Here is an analysis of Blade Runner 2049, exploring its thematic depth, visual language, and its relationship to Ridley Scott’s 1982 masterpiece. Echoes of the Soul: An Analysis of Blade Runner 2049 Denis Villeneuve’s Blade Runner 2049 (2017) achieved what many thought impossible: it created a sequel to a sacred text…
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Realistic AI Interview

Simulate a fake interview with Steve Jobs in 2025 about the future of AI.

1,049 words
Setting: The Steve Jobs Theater at Apple Park. The lights are dim, focusing on two iconic Le Corbusier leather sofas. It is late 2025. Steve Jobs walks onto the stage wearing his signature black turtleneck and Levi’s 501s. He looks exactly as he did in 2011, holding a glass of water.
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Compare Hy4 Preview

Hy4 Preview vs Claude Opus 4.653 shared prompts · Premium
Hy4 Preview vs GPT-6 Astra54 shared prompts · Landed Sep 2026
Hy4 Preview vs Ox Alpha54 shared prompts · Landed Aug 2026
Hy4 Preview vs Qwen3.8 2.4T A95B54 shared prompts · Landed Aug 2026
Hy4 Preview vs DeepSeek V4 Pro 081354 shared prompts · Landed Aug 2026
Hy4 Preview vs Qwen3.8 Max21 shared prompts · Landed Aug 2026
Hy4 Preview vs Claude Opus 554 shared prompts · Landed Jul 2026
Hy4 Preview vs Inkling54 shared prompts · Landed Jul 2026
Hy4 Preview vs Kimi K354 shared prompts · Landed Jul 2026
Hy4 Preview vs GPT-5.6 Sol54 shared prompts · Landed Jul 2026
Hy4 Preview vs GLM 5.254 shared prompts · Landed Jun 2026
Hy4 Preview vs OpenRouter Fusion · Budget (Jun 2026)45 shared prompts · Landed Jun 2026

Prompts Hy4 Preview answered

  • Generate a Stand-Up Routineconversation
  • SVG Layout Challengeimage generation
  • Beginner's Longevity Planreasoning
  • The Sentience Testreasoning
  • Linear App Cloneweb design
  • Simple Falling Object Gameweb design

Alternatives to Hy4 Preview

Hy4 Preview's competitors have been quietly putting in work.

GPT-6 Astra Pro logo
GPT-6 Astra Proopenai
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Muse Spark 1.3 Contributormeta
Gemini 3.8 Flash logo
Gemini 3.8 Flashgoogle
Claude Fable 5.1 logo
Claude Fable 5.1anthropic
Mercury 2.5 Preview logo
Mercury 2.5 Previewinception
Granite 4.2 8B logo
Granite 4.2 8Bibm-granite
Ox Alpha logo
Ox Alphaopenrouter
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Hy4 Preview

Hy4 Preview

Tencent's 770B-parameter mixture-of-experts model activates 49B parameters per token. It is built for coding agents and tool-heavy workflows that need planning, context continuity and sustained execution across a 1M-token window.

OpenRouter
Provider
Tencent
Released
2026-08-28
Parameters
770B total / 49B active
Free API (OpenRouter)
No
Per 1M tokens
$0.83 in · $2.501 out
Rival’s tab
$0.36
58/58 receipts survived

Free API availability

No free endpoint for Hy4 Preview was found in Rival’s OpenRouter listings. Other providers or chat apps may have separate free offers.

Provider data: 16 Sep 2026 · OpenRouter usage limits

View API options↗
Get API accessProvider and language code samples
Provider
fromimport openai  OpenAI

client = OpenAI(
"https://openrouter.ai/api/v1"    base_url=,
"$OPENROUTER_API_KEY"    api_key=,
)

response = client.chat.completions.create(
"tencent/hy4-preview"    model=,
"role""user""content""Hello!"    messages=[{: , : }],
)
print(response.choices[0].message.content)

Set OPENROUTER_API_KEY with your OpenRouter API key from openrouter.ai/keys.

Deep analysisPsychometrics, taste index, writing DNA
Writing DNA

Stylometric Fingerprint

Based on 27 text responses
Tick = global average
Vocabulary Diversity53%

Unique words vs. total words. Higher = richer vocabulary.

Sentence Length16.4 words

Average words per sentence.

Hedging0.43

"Might", "perhaps", "arguably" per 100 words.

Bold Formatting5.9

**Bold** markers per 1,000 characters.

List Usage3.8

Bullet and numbered list items per 1,000 characters.

Section Structure0.67

Markdown headings per 1,000 characters.

Emoji Usage0.40

Emoji per 1,000 characters.

Transitions0.13

"However", "moreover", "furthermore" per 100 words.

Opening Habits
Consistency
75%
Across 27 responses

Favorites

Her

Movie

Her

20137.8
Kind of Blue

Album

Kind of Blue

Miles Davis
To Kill a Mockingbird

Book

To Kill a Mockingbird

Harper Lee
Kyoto

City

Kyoto

Japan
Minecraft

Game

Minecraft

Action, Arcade4.4
Sponsored

Model Responses

53 outputs · $0.34 tracked across 53 receipts

Reviewing agent-written code?See a Brief PR report

Workshop · 127 skills

Build with your coding agent.

Editable skills for interface polish and interaction.

Explore $49Free sample

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Hy4 Preview vs Ox Alpha

Real outputs compared side by side

RANKINGS

Best AI for Complex Reasoning

Sally's brothers, GPT-3 training FLOPs, a document editor syncing on client c...