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Hy4 preview vs Nemotron 3.5 Lightning (30B A3B)

Hy4 preview leads the LLM Stats Score 51.1 to 22.3.

Tencent · NVIDIA · Updated for 2026

Which is better?

Hy4 preview leads the overall LLM Stats Score 51.1 to 22.3, ranking #14 overall.

In the 3 individual benchmarks reported for both models, Hy4 preview wins 3; 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 3 of 3 exact shared results
  • you want the most recent training data — it shipped Aug 2026

Choose Nemotron 3.5 Lightning (30B A3B)

  • you want predictable pricing at $0.05/M input and $0.20/M output

At a glance

The differences that matter most.

Hy4 preview
Tencent
Nemotron 3.5 Lightning (30B A3B)
NVIDIA
Core performance indexes
LLM Stats Score
51.1
#14
22.3
#169
Reasoning
50.7
#11
19.9
#184
Coding
39.8
#12
8.6
#173
Agents
36.3
#14
7.3
#131
Cost, coverage & limits
Benchmark wins
3 of 3
0 of 3
Input price
— / M
$0.05 / M
Output price
— / M
$0.20 / M
Context window
—
262,144

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
Hy4 preview
Nemotron 3.5 Lightning (30B A3B)
Math
39.4#17
18.1#179
Tool use
31.1#10
2.7#160
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

32 reported for Hy4 preview · 13 for Nemotron 3.5 Lightning (30B A3B)

3 shared

Hy4 preview outperforms in 3 benchmarks (GPQA, SWE-bench Multilingual, Terminal-Bench 2.1), while Nemotron 3.5 Lightning (30B A3B) 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

740.0B diff

Hy4 preview has 740.0B more parameters than Nemotron 3.5 Lightning (30B A3B), making it 2466.7% larger.

Tencent
Hy4 preview
770.0Bparameters
NVIDIA
Nemotron 3.5 Lightning (30B A3B)
30.0Bparameters
770.0B
Hy4 preview
30.0B
Nemotron 3.5 Lightning (30B A3B)

Context Window

Maximum input and output token capacity

Only Nemotron 3.5 Lightning (30B A3B) specifies input context (262,144 tokens). Only Nemotron 3.5 Lightning (30B A3B) specifies output context (262,144 tokens).

Tencent
Hy4 preview
Input- tokens
Output- tokens
NVIDIA
Nemotron 3.5 Lightning (30B A3B)
Input262,144 tokens
Output262,144 tokens
Fri Sep 04 2026 • llm-stats.com

License

Usage and distribution terms

Hy4 preview is licensed under Apache 2.0, while Nemotron 3.5 Lightning (30B A3B) uses OpenMDW License v1.1.

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

Hy4 preview

Apache 2.0

Open weights

Nemotron 3.5 Lightning (30B A3B)

OpenMDW License v1.1

Open weights

Release Timeline

When each model was launched

Hy4 preview was released on 2026-08-28, while Nemotron 3.5 Lightning (30B A3B) was released on 2026-08-11.

Hy4 preview is 1 month newer than Nemotron 3.5 Lightning (30B A3B).

Hy4 preview

Aug 28, 2026

1 weeks ago

2w newer
Nemotron 3.5 Lightning (30B A3B)

Aug 11, 2026

3 weeks 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 Nemotron 3.5 Lightning (30B A3B) side-by-side, then vote on the output you prefer.

Hy4 preview
✓ Preferred
Nemotron 3.5 Lightning (30B A3B)
Open in Playground

FAQ

Common questions about Hy4 preview vs Nemotron 3.5 Lightning (30B A3B).

Which is better, Hy4 preview or Nemotron 3.5 Lightning (30B A3B)?

Hy4 preview leads the LLM Stats Score 51.1 to 22.3. Hy4 preview is made by Tencent and Nemotron 3.5 Lightning (30B A3B) is made by NVIDIA. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Hy4 preview compare to Nemotron 3.5 Lightning (30B A3B) 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%. Nemotron 3.5 Lightning (30B A3B) scores PinchBench: 85.4%, MMLU-Pro: 81.9%, GPQA: 75.4%, IFBench: 71.9%, AA-LCR: 52.0%.

What are the context window sizes for Hy4 preview and Nemotron 3.5 Lightning (30B A3B)?

Hy4 preview supports an unknown number of tokens and Nemotron 3.5 Lightning (30B A3B) supports 262K 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 Nemotron 3.5 Lightning (30B A3B)?

Key differences include LLM Stats Score (51.1 vs 22.3), licensing (Apache 2.0 vs OpenMDW License v1.1). See the full comparison above for benchmark-by-benchmark results.

Who makes Hy4 preview and Nemotron 3.5 Lightning (30B A3B)?

Hy4 preview is developed by Tencent and Nemotron 3.5 Lightning (30B A3B) is developed by NVIDIA.

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