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LFM3-1.7B vs Nemotron 3 Ultra (550B A55B)

Nemotron 3 Ultra (550B A55B) leads the LLM Stats Score 35.7 to 25.0.

Liquid AI · NVIDIA · Updated for 2026

Which is better?

Nemotron 3 Ultra (550B A55B) leads the overall LLM Stats Score 35.7 to 25.0, ranking #107 overall.

In the 10 individual benchmarks reported for both models, Nemotron 3 Ultra (550B A55B) wins 9; 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 LFM3-1.7B

  • you want the most recent training data — it shipped Oct 2026

Choose Nemotron 3 Ultra (550B A55B)

  • overall performance matters — it scores 35.7 and ranks #107 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 9 of 10 exact shared results

At a glance

The differences that matter most.

LFM3-1.7B
Liquid AI
Nemotron 3 Ultra (550B A55B)
NVIDIA
Core performance indexes
LLM Stats Score
25.0
#191
35.7
#107
Reasoning
20.8
#216
35.0
#106
Coding
7.4
#218
20.0
#124
Agents
18.1
#97
11.8
#137
Cost, coverage & limits
Benchmark wins
1 of 10
9 of 10
Input price
— / M
$0.50 / M
Output price
— / M
$2.20 / M
Context window
—
262,144

Capability indexes

Additional strengths measured across groups of related public benchmarks

3 shared
Index
LFM3-1.7B
Nemotron 3 Ultra (550B A55B)
Math
7.6#285
36.0#44
Tool use
14.3#119
2.0#202
Long context
5.1#112
19.5#31
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

20 reported for LFM3-1.7B · 26 for Nemotron 3 Ultra (550B A55B)

10 shared

LFM3-1.7B outperforms in 1 benchmarks (TAU3-Bench), while Nemotron 3 Ultra (550B A55B) is better at 9 benchmarks (AA-LCR, GPQA, Humanity's Last Exam, IFBench, LiveCodeBench v6, SciCode, SWE-bench Multilingual, SWE-Bench Verified, Terminal-Bench 2.1).

Nemotron 3 Ultra (550B A55B) significantly outperforms across most benchmarks.

Thu Nov 05 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Model Size

Parameter count comparison

548.3B diff

Nemotron 3 Ultra (550B A55B) has 548.3B more parameters than LFM3-1.7B, making it 31691.9% larger.

Liquid AI
LFM3-1.7B
1.7Bparameters
NVIDIA
Nemotron 3 Ultra (550B A55B)
550.0Bparameters
1.7B
LFM3-1.7B
550.0B
Nemotron 3 Ultra (550B A55B)

Context Window

Maximum input and output token capacity

Only Nemotron 3 Ultra (550B A55B) specifies input context (262,144 tokens). Only Nemotron 3 Ultra (550B A55B) specifies output context (262,144 tokens).

Liquid AI
LFM3-1.7B
Input- tokens
Output- tokens
NVIDIA
Nemotron 3 Ultra (550B A55B)
Input262,144 tokens
Output262,144 tokens
Thu Nov 05 2026 • llm-stats.com

License

Usage and distribution terms

LFM3-1.7B is licensed under LFM Open License v1.0, while Nemotron 3 Ultra (550B A55B) uses OpenMDW License v1.1.

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

LFM3-1.7B

LFM Open License v1.0

Open weights

Nemotron 3 Ultra (550B A55B)

OpenMDW License v1.1

Open weights

Release Timeline

When each model was launched

LFM3-1.7B was released on 2026-10-27, while Nemotron 3 Ultra (550B A55B) was released on 2026-06-04.

LFM3-1.7B is 5 months newer than Nemotron 3 Ultra (550B A55B).

LFM3-1.7B

Oct 27, 2026

1 weeks ago

4mo newer
Nemotron 3 Ultra (550B A55B)

Jun 4, 2026

5 months ago

Knowledge Cutoff

When training data ends

Nemotron 3 Ultra (550B A55B) has a documented knowledge cutoff of 2025-09-30, while LFM3-1.7B's cutoff date is not specified.

We can confirm Nemotron 3 Ultra (550B A55B)'s training data extends to 2025-09-30, but cannot make a direct comparison without LFM3-1.7B's cutoff date.

LFM3-1.7B

—

Nemotron 3 Ultra (550B A55B)

Sep 2025

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against LFM3-1.7B and Nemotron 3 Ultra (550B A55B) side-by-side, then vote on the output you prefer.

LFM3-1.7B
✓ Preferred
Nemotron 3 Ultra (550B A55B)
Open in Playground

FAQ

Common questions about LFM3-1.7B vs Nemotron 3 Ultra (550B A55B).

Which is better, LFM3-1.7B or Nemotron 3 Ultra (550B A55B)?

Nemotron 3 Ultra (550B A55B) leads the LLM Stats Score 35.7 to 25.0. LFM3-1.7B is made by Liquid AI and Nemotron 3 Ultra (550B A55B) is made by NVIDIA. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does LFM3-1.7B compare to Nemotron 3 Ultra (550B A55B) in benchmarks?

LFM3-1.7B scores IFEval: 96.7%, Multi-IF: 89.1%, LiveCodeBench v6: 73.5%, IFBench: 73.0%, BFCL-V4: 71.4%. Nemotron 3 Ultra (550B A55B) scores RULER: 94.7%, IMO-AnswerBench: 92.3%, PinchBench: 90.0%, LiveCodeBench v6: 89.0%, GPQA: 87.0%.

What are the context window sizes for LFM3-1.7B and Nemotron 3 Ultra (550B A55B)?

LFM3-1.7B supports an unknown number of tokens and Nemotron 3 Ultra (550B A55B) 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 LFM3-1.7B and Nemotron 3 Ultra (550B A55B)?

Key differences include LLM Stats Score (25.0 vs 35.7), licensing (LFM Open License v1.0 vs OpenMDW License v1.1). See the full comparison above for benchmark-by-benchmark results.

Who makes LFM3-1.7B and Nemotron 3 Ultra (550B A55B)?

LFM3-1.7B is developed by Liquid AI and Nemotron 3 Ultra (550B A55B) is developed by NVIDIA.

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