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LongCat-Flash-Thinking-2601 vs Nemotron 3.5 Bolt (74B A9B 24GB)

LongCat-Flash-Thinking-2601 and Nemotron 3.5 Bolt (74B A9B 24GB) are closely matched at 35.2 and 29.9 on the LLM Stats Score.

Meituan · NVIDIA · Updated for 2026

Which is better?

LongCat-Flash-Thinking-2601 and Nemotron 3.5 Bolt (74B A9B 24GB) are closely matched on the overall LLM Stats Score at 35.2 and 29.9.

In the 3 individual benchmarks reported for both models, Nemotron 3.5 Bolt (74B A9B 24GB) 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 LongCat-Flash-Thinking-2601

  • your work emphasizes reasoning — it leads those capability indexes

Choose Nemotron 3.5 Bolt (74B A9B 24GB)

  • you value its reported benchmark strengths — it wins 3 of 3 exact shared results
  • you want the most recent training data — it shipped Oct 2026

At a glance

The differences that matter most.

LongCat-Flash-Thinking-2601
Meituan
Nemotron 3.5 Bolt (74B A9B 24GB)
NVIDIA
Core performance indexes
LLM Stats Score
35.2
#105
29.9
#142
Reasoning
35.3
#99
29.2
#143
Coding
18.7
#127
14.8
#151
Agents
9.4
#144
12.4
#124
Cost, coverage & limits
Benchmark wins
0 of 3
3 of 3
Input price
$0.30 / M
— / M
Output price
$1.20 / M
— / M
Context window
128,000
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
LongCat-Flash-Thinking-2601
Nemotron 3.5 Bolt (74B A9B 24GB)
Math
30.3#81
23.6#135
Tool use
24.3#41
5.6#168
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

11 reported for LongCat-Flash-Thinking-2601 · 10 for Nemotron 3.5 Bolt (74B A9B 24GB)

3 shared

LongCat-Flash-Thinking-2601 outperforms in 0 benchmarks, while Nemotron 3.5 Bolt (74B A9B 24GB) is better at 3 benchmarks (BrowseComp, GPQA, Humanity's Last Exam).

Nemotron 3.5 Bolt (74B A9B 24GB) significantly outperforms across most benchmarks.

Mon Oct 19 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Model Size

Parameter count comparison

486.0B diff

LongCat-Flash-Thinking-2601 has 486.0B more parameters than Nemotron 3.5 Bolt (74B A9B 24GB), making it 656.8% larger.

Meituan
LongCat-Flash-Thinking-2601
560.0Bparameters
NVIDIA
Nemotron 3.5 Bolt (74B A9B 24GB)
74.0Bparameters
560.0B
LongCat-Flash-Thinking-2601
74.0B
Nemotron 3.5 Bolt (74B A9B 24GB)

Context Window

Maximum input and output token capacity

Only LongCat-Flash-Thinking-2601 specifies input context (128,000 tokens). Only LongCat-Flash-Thinking-2601 specifies output context (128,000 tokens).

Meituan
LongCat-Flash-Thinking-2601
Input128,000 tokens
Output128,000 tokens
NVIDIA
Nemotron 3.5 Bolt (74B A9B 24GB)
Input- tokens
Output- tokens
Mon Oct 19 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Nemotron 3.5 Bolt (74B A9B 24GB) supports multimodal inputs, whereas LongCat-Flash-Thinking-2601 does not.

Nemotron 3.5 Bolt (74B A9B 24GB) can handle both text and other forms of data like images, making it suitable for multimodal applications.

LongCat-Flash-Thinking-2601

Text
Images
Audio
Video

Nemotron 3.5 Bolt (74B A9B 24GB)

Text
Images
Audio
Video

License

Usage and distribution terms

LongCat-Flash-Thinking-2601 is licensed under MIT, while Nemotron 3.5 Bolt (74B A9B 24GB) uses OpenMDW License v1.1.

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

LongCat-Flash-Thinking-2601

MIT

Open weights

Nemotron 3.5 Bolt (74B A9B 24GB)

OpenMDW License v1.1

Open weights

Release Timeline

When each model was launched

LongCat-Flash-Thinking-2601 was released on 2026-01-14, while Nemotron 3.5 Bolt (74B A9B 24GB) was released on 2026-10-15.

Nemotron 3.5 Bolt (74B A9B 24GB) is 9 months newer than LongCat-Flash-Thinking-2601.

LongCat-Flash-Thinking-2601

Jan 14, 2026

9 months ago

Nemotron 3.5 Bolt (74B A9B 24GB)

Oct 15, 2026

4 days ago

9mo newer

Knowledge Cutoff

When training data ends

Nemotron 3.5 Bolt (74B A9B 24GB) has a documented knowledge cutoff of 2026-05-01, while LongCat-Flash-Thinking-2601's cutoff date is not specified.

We can confirm Nemotron 3.5 Bolt (74B A9B 24GB)'s training data extends to 2026-05-01, but cannot make a direct comparison without LongCat-Flash-Thinking-2601's cutoff date.

LongCat-Flash-Thinking-2601

—

Nemotron 3.5 Bolt (74B A9B 24GB)

May 2026

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against LongCat-Flash-Thinking-2601 and Nemotron 3.5 Bolt (74B A9B 24GB) side-by-side, then vote on the output you prefer.

LongCat-Flash-Thinking-2601
✓ Preferred
Nemotron 3.5 Bolt (74B A9B 24GB)
Open in Playground

FAQ

Common questions about LongCat-Flash-Thinking-2601 vs Nemotron 3.5 Bolt (74B A9B 24GB).

Which is better, LongCat-Flash-Thinking-2601 or Nemotron 3.5 Bolt (74B A9B 24GB)?

LongCat-Flash-Thinking-2601 and Nemotron 3.5 Bolt (74B A9B 24GB) are closely matched on the LLM Stats Score at 35.2 and 29.9. LongCat-Flash-Thinking-2601 is made by Meituan and Nemotron 3.5 Bolt (74B A9B 24GB) is made by NVIDIA. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does LongCat-Flash-Thinking-2601 compare to Nemotron 3.5 Bolt (74B A9B 24GB) in benchmarks?

LongCat-Flash-Thinking-2601 scores AIME 2025: 99.6%, Tau2 Telecom: 99.3%, Tau2 Retail: 88.6%, LiveCodeBench: 82.8%, GPQA: 80.5%. Nemotron 3.5 Bolt (74B A9B 24GB) scores PinchBench: 87.8%, GPQA: 86.4%, BrowseComp: 66.8%, AA-LCR: 64.1%, MCP Atlas: 52.2%.

What are the context window sizes for LongCat-Flash-Thinking-2601 and Nemotron 3.5 Bolt (74B A9B 24GB)?

LongCat-Flash-Thinking-2601 supports 128K tokens and Nemotron 3.5 Bolt (74B A9B 24GB) 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 LongCat-Flash-Thinking-2601 and Nemotron 3.5 Bolt (74B A9B 24GB)?

Key differences include LLM Stats Score (35.2 vs 29.9), multimodal support (no vs yes), licensing (MIT vs OpenMDW License v1.1). See the full comparison above for benchmark-by-benchmark results.

Who makes LongCat-Flash-Thinking-2601 and Nemotron 3.5 Bolt (74B A9B 24GB)?

LongCat-Flash-Thinking-2601 is developed by Meituan and Nemotron 3.5 Bolt (74B A9B 24GB) is developed by NVIDIA.

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