Model Comparison

LongCat-Flash-Thinking-2601 vs Nemotron 3 Nano (30B A3B)Which is better in 2026?

LongCat-Flash-Thinking-2601 significantly outperforms across most benchmarks. Nemotron 3 Nano (30B A3B) is 5.0x cheaper per token.

Verdict: LongCat-Flash-Thinking-2601 vs Nemotron 3 Nano (30B A3B) — which is better?

LongCat-Flash-Thinking-2601 (by Meituan) and Nemotron 3 Nano (30B A3B) (by NVIDIA) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

LongCat-Flash-Thinking-2601 outperforms in 7 benchmarks (AIME 2025, GPQA, Humanity's Last Exam, SWE-Bench Verified, Tau2 Airline, Tau2 Retail, Tau2 Telecom), while Nemotron 3 Nano (30B A3B) is better at 0 benchmarks. LongCat-Flash-Thinking-2601 significantly outperforms across most benchmarks.

On price, Nemotron 3 Nano (30B A3B) is roughly 5.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Nemotron 3 Nano (30B A3B) also accepts a larger context window (262,144 input tokens), making it the stronger choice for long documents and large codebases.

Choose LongCat-Flash-Thinking-2601 if…

  • you want the strongest raw capability — it leads on 7 of 7 shared benchmarks
  • you want the most recent training data — it shipped Jan 2026

Choose Nemotron 3 Nano (30B A3B) if…

  • cost matters — it's about 5.0x cheaper per token
  • you process long inputs — it offers a 262,144 token context window

Performance Benchmarks

Comparative analysis across standard metrics

7 benchmarks

LongCat-Flash-Thinking-2601 outperforms in 7 benchmarks (AIME 2025, GPQA, Humanity's Last Exam, SWE-Bench Verified, Tau2 Airline, Tau2 Retail, Tau2 Telecom), while Nemotron 3 Nano (30B A3B) is better at 0 benchmarks.

LongCat-Flash-Thinking-2601 significantly outperforms across most benchmarks.

Wed Aug 05 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Nemotron 3 Nano (30B A3B) costs less

For input processing, LongCat-Flash-Thinking-2601 ($0.30/1M tokens) is 5.0x more expensive than Nemotron 3 Nano (30B A3B) ($0.06/1M tokens).

For output processing, LongCat-Flash-Thinking-2601 ($1.20/1M tokens) is 5.0x more expensive than Nemotron 3 Nano (30B A3B) ($0.24/1M tokens).

In conclusion, LongCat-Flash-Thinking-2601 is more expensive than Nemotron 3 Nano (30B A3B).*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Wed Aug 05 2026 • llm-stats.com
Meituan
LongCat-Flash-Thinking-2601
Input tokens$0.30
Output tokens$1.20
Best providerMeituan
NVIDIA
Nemotron 3 Nano (30B A3B)
Input tokens$0.06
Output tokens$0.24
Best providerDeepinfra
Notice missing or incorrect data?Start an Issue→

Model Size

Parameter count comparison

528.0B diff

LongCat-Flash-Thinking-2601 has 528.0B more parameters than Nemotron 3 Nano (30B A3B), making it 1650.0% larger.

Meituan
LongCat-Flash-Thinking-2601
560.0Bparameters
NVIDIA
Nemotron 3 Nano (30B A3B)
32.0Bparameters
560.0B
LongCat-Flash-Thinking-2601
32.0B
Nemotron 3 Nano (30B A3B)

Context Window

Maximum input and output token capacity

Nemotron 3 Nano (30B A3B) accepts 262,144 input tokens compared to LongCat-Flash-Thinking-2601's 128,000 tokens. Nemotron 3 Nano (30B A3B) can generate longer responses up to 262,144 tokens, while LongCat-Flash-Thinking-2601 is limited to 128,000 tokens.

Meituan
LongCat-Flash-Thinking-2601
Input128,000 tokens
Output128,000 tokens
NVIDIA
Nemotron 3 Nano (30B A3B)
Input262,144 tokens
Output262,144 tokens
Wed Aug 05 2026 • llm-stats.com

License

Usage and distribution terms

LongCat-Flash-Thinking-2601 is licensed under MIT, while Nemotron 3 Nano (30B A3B) uses NVIDIA Open Model License Agreement .

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 Nano (30B A3B)

NVIDIA Open Model License Agreement

Open weights

Release Timeline

When each model was launched

LongCat-Flash-Thinking-2601 was released on 2026-01-14, while Nemotron 3 Nano (30B A3B) was released on 2025-12-15.

LongCat-Flash-Thinking-2601 is 1 month newer than Nemotron 3 Nano (30B A3B).

LongCat-Flash-Thinking-2601

Jan 14, 2026

6 months ago

1mo newer
Nemotron 3 Nano (30B A3B)

Dec 15, 2025

7 months ago

Knowledge Cutoff

When training data ends

Nemotron 3 Nano (30B A3B) has a documented knowledge cutoff of 2025-11-28, while LongCat-Flash-Thinking-2601's cutoff date is not specified.

We can confirm Nemotron 3 Nano (30B A3B)'s training data extends to 2025-11-28, but cannot make a direct comparison without LongCat-Flash-Thinking-2601's cutoff date.

LongCat-Flash-Thinking-2601

—

Nemotron 3 Nano (30B A3B)

Nov 2025

Provider Availability

LongCat-Flash-Thinking-2601 is available from Meituan. Nemotron 3 Nano (30B A3B) is available from DeepInfra.

LongCat-Flash-Thinking-2601

meituan logo
Meituan
Input Price:Input: $0.30/1MOutput Price:Output: $1.20/1M

Nemotron 3 Nano (30B A3B)

deepinfra logo
Deepinfra
Input Price:Input: $0.06/1MOutput Price:Output: $0.24/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Meituan
Higher AIME 2025 score (99.6% vs 99.2%)
Higher GPQA score (80.5% vs 75.0%)
Higher Humanity's Last Exam score (25.2% vs 15.5%)
Higher SWE-Bench Verified score (70.0% vs 38.8%)
Higher Tau2 Airline score (76.5% vs 48.0%)
Higher Tau2 Retail score (88.6% vs 56.9%)
Higher Tau2 Telecom score (99.3% vs 42.2%)
NVIDIA
Larger context window (262,144 tokens)
Less expensive input tokens
Less expensive output tokens

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against LongCat-Flash-Thinking-2601 and Nemotron 3 Nano (30B A3B) side-by-side, then vote on the output you prefer.

LongCat-Flash-Thinking-2601
✓ Preferred
Nemotron 3 Nano (30B A3B)
Open in Playground
AI Model Comparison Table
Feature
Meituan
LongCat-Flash-Thinking-2601
NVIDIA
Nemotron 3 Nano (30B A3B)

FAQ

Common questions about LongCat-Flash-Thinking-2601 vs Nemotron 3 Nano (30B A3B).

Which is better, LongCat-Flash-Thinking-2601 or Nemotron 3 Nano (30B A3B)?

LongCat-Flash-Thinking-2601 significantly outperforms across most benchmarks. LongCat-Flash-Thinking-2601 is made by Meituan and Nemotron 3 Nano (30B A3B) is made by NVIDIA. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does LongCat-Flash-Thinking-2601 compare to Nemotron 3 Nano (30B A3B) 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 Nano (30B A3B) scores AIME 2025: 99.2%, WMT24++: 86.2%, MMLU-Pro: 78.3%, GPQA: 75.0%, LiveCodeBench v6: 68.3%.

Is LongCat-Flash-Thinking-2601 cheaper than Nemotron 3 Nano (30B A3B)?

Nemotron 3 Nano (30B A3B) is 5.0x cheaper for input tokens. LongCat-Flash-Thinking-2601 costs $0.30/M input and $1.20/M output via meituan. Nemotron 3 Nano (30B A3B) costs $0.06/M input and $0.24/M output via deepinfra.

What are the context window sizes for LongCat-Flash-Thinking-2601 and Nemotron 3 Nano (30B A3B)?

LongCat-Flash-Thinking-2601 supports 128K tokens and Nemotron 3 Nano (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 LongCat-Flash-Thinking-2601 and Nemotron 3 Nano (30B A3B)?

Key differences include context window (128K vs 262K), input pricing ($0.30 vs $0.06/M), licensing (MIT vs NVIDIA Open Model License Agreement ). See the full comparison above for benchmark-by-benchmark results.

Who makes LongCat-Flash-Thinking-2601 and Nemotron 3 Nano (30B A3B)?

LongCat-Flash-Thinking-2601 is developed by Meituan and Nemotron 3 Nano (30B A3B) is developed by NVIDIA.

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