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Grok-4.1 Thinking vs Hy4 preview

Hy4 preview leads the LLM Stats Score 51.0 to 16.0.

xAI · Tencent · Updated for 2026

Which is better?

Hy4 preview leads the overall LLM Stats Score 51.0 to 16.0, ranking #14 overall.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Grok-4.1 Thinking

  • you want predictable pricing at $3.00/M input and $15.00/M output

Choose Hy4 preview

  • overall performance matters — it scores 51.0 and ranks #14 on LLM Stats
  • you want the most recent training data — it shipped Aug 2026
  • you need open weights you can self-host or fine-tune

At a glance

The differences that matter most.

Grok-4.1 Thinking
xAI
Hy4 preview
Tencent
Core performance indexes
LLM Stats Score
16.0
#225
51.0
#14
Cost, coverage & limits
Benchmark wins
—
—
Input price
$3.00 / M
— / M
Output price
$15.00 / M
— / M
Context window
256,000
—

Individual benchmarks

11 reported for Grok-4.1 Thinking · 32 for Hy4 preview

No common benchmarks found

Grok-4.1 Thinking and Hy4 previewdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Grok-4.1 Thinking specifies input context (256,000 tokens). Only Grok-4.1 Thinking specifies output context (8,000 tokens).

xAI
Grok-4.1 Thinking
Input256,000 tokens
Output8,000 tokens
Tencent
Hy4 preview
Input- tokens
Output- tokens
Mon Sep 21 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Grok-4.1 Thinking supports multimodal inputs, whereas Hy4 preview does not.

Grok-4.1 Thinking can handle both text and other forms of data like images, making it suitable for multimodal applications.

Grok-4.1 Thinking

Text
Images
Audio
Video

Hy4 preview

Text
Images
Audio
Video

License

Usage and distribution terms

Grok-4.1 Thinking is licensed under a proprietary license, while Hy4 preview uses Apache 2.0.

License differences may affect how you can use these models in commercial or open-source projects.

Grok-4.1 Thinking

Proprietary

Closed source

Hy4 preview

Apache 2.0

Open weights

Release Timeline

When each model was launched

Grok-4.1 Thinking was released on 2025-11-17, while Hy4 preview was released on 2026-08-28.

Hy4 preview is 9 months newer than Grok-4.1 Thinking.

Grok-4.1 Thinking

Nov 17, 2025

10 months ago

Hy4 preview

Aug 28, 2026

3 weeks ago

9mo newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Grok-4.1 Thinking and Hy4 preview side-by-side, then vote on the output you prefer.

Grok-4.1 Thinking
✓ Preferred
Hy4 preview
Open in Playground

FAQ

Common questions about Grok-4.1 Thinking vs Hy4 preview.

Which is better, Grok-4.1 Thinking or Hy4 preview?

Hy4 preview leads the LLM Stats Score 51.0 to 16.0. Grok-4.1 Thinking is made by xAI and Hy4 preview is made by Tencent. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Grok-4.1 Thinking compare to Hy4 preview in benchmarks?

Grok-4.1 Thinking scores Creative Writing v3: 86.1%, WMDP: 84.0%, EQ-Bench: 79.3%, ProtocolQA: 79.0%, LMArena Text Leaderboard: 74.2%. Hy4 preview scores GPQA: 92.3%, Terminal-Bench 2.1: 85.4%, WideSearch: 83.9%, MCP Atlas: 83.7%, SWE-bench Multilingual: 82.9%.

What are the context window sizes for Grok-4.1 Thinking and Hy4 preview?

Grok-4.1 Thinking supports 256K tokens and Hy4 preview supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Grok-4.1 Thinking and Hy4 preview?

Key differences include LLM Stats Score (16.0 vs 51.0), multimodal support (yes vs no), licensing (Proprietary vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes Grok-4.1 Thinking and Hy4 preview?

Grok-4.1 Thinking is developed by xAI and Hy4 preview is developed by Tencent.

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