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Hy4 preview vs Mistral Small 4

Hy4 preview leads the LLM Stats Score 51.1 to 19.1.

Tencent · Mistral AI · Updated for 2026

Which is better?

Hy4 preview leads the overall LLM Stats Score 51.1 to 19.1, ranking #14 overall.

In the 1 individual benchmarks reported for both models, Hy4 preview wins 1; this is a narrower head-to-head signal than the composite indexes.

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

Choose Hy4 preview

  • overall performance matters — it scores 51.1 and ranks #14 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 1 of 1 exact shared results
  • you want the most recent training data — it shipped Aug 2026

Choose Mistral Small 4

  • you want predictable pricing at $0.15/M input and $0.60/M output

At a glance

The differences that matter most.

Hy4 preview
Tencent
Mistral Small 4
Mistral AI
Core performance indexes
LLM Stats Score
51.1
#14
19.1
#198
Reasoning
50.7
#11
20.1
#182
Coding
39.8
#12
10.8
#154
Cost, coverage & limits
Benchmark wins
1 of 1
0 of 1
Input price
— / M
$0.15 / M
Output price
— / M
$0.60 / M
Context window
—
256,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Hy4 preview
Mistral Small 4
Math
39.4#17
19.1#166
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

32 reported for Hy4 preview · 9 for Mistral Small 4

1 shared

Hy4 preview outperforms in 1 benchmarks (GPQA), while Mistral Small 4 is better at 0 benchmarks.

Hy4 preview significantly outperforms across most benchmarks.

Fri Sep 04 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Model Size

Parameter count comparison

651.0B diff

Hy4 preview has 651.0B more parameters than Mistral Small 4, making it 547.1% larger.

Tencent
Hy4 preview
770.0Bparameters
Mistral AI
Mistral Small 4
119.0Bparameters
770.0B
Hy4 preview
119.0B
Mistral Small 4

Context Window

Maximum input and output token capacity

Only Mistral Small 4 specifies input context (256,000 tokens). Only Mistral Small 4 specifies output context (256,000 tokens).

Tencent
Hy4 preview
Input- tokens
Output- tokens
Mistral AI
Mistral Small 4
Input256,000 tokens
Output256,000 tokens
Fri Sep 04 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Mistral Small 4 supports multimodal inputs, whereas Hy4 preview does not.

Mistral Small 4 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Hy4 preview

Text
Images
Audio
Video

Mistral Small 4

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under Apache 2.0.

Both models share the same licensing terms, providing consistent usage rights.

Hy4 preview

Apache 2.0

Open weights

Mistral Small 4

Apache 2.0

Open weights

Release Timeline

When each model was launched

Hy4 preview was released on 2026-08-28, while Mistral Small 4 was released on 2026-03-16.

Hy4 preview is 6 months newer than Mistral Small 4.

Hy4 preview

Aug 28, 2026

1 weeks ago

5mo newer
Mistral Small 4

Mar 16, 2026

5 months ago

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 Hy4 preview and Mistral Small 4 side-by-side, then vote on the output you prefer.

Hy4 preview
✓ Preferred
Mistral Small 4
Open in Playground

FAQ

Common questions about Hy4 preview vs Mistral Small 4.

Which is better, Hy4 preview or Mistral Small 4?

Hy4 preview leads the LLM Stats Score 51.1 to 19.1. Hy4 preview is made by Tencent and Mistral Small 4 is made by Mistral AI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Hy4 preview compare to Mistral Small 4 in benchmarks?

Hy4 preview scores GPQA: 92.3%, Terminal-Bench 2.1: 85.4%, WideSearch: 83.9%, MCP Atlas: 83.7%, SWE-bench Multilingual: 82.9%. Mistral Small 4 scores AIME 2025: 83.8%, MMLU-Pro: 78.0%, AA-LCR: 71.2%, GPQA: 71.2%, LiveCodeBench: 63.6%.

What are the context window sizes for Hy4 preview and Mistral Small 4?

Hy4 preview supports an unknown number of tokens and Mistral Small 4 supports 256K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Hy4 preview and Mistral Small 4?

Key differences include LLM Stats Score (51.1 vs 19.1), multimodal support (no vs yes). See the full comparison above for benchmark-by-benchmark results.

Who makes Hy4 preview and Mistral Small 4?

Hy4 preview is developed by Tencent and Mistral Small 4 is developed by Mistral AI.

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