# LFM3-1.7B vs Nemotron 3 Ultra

> Side-by-side benchmark comparison for LFM3-1.7B and Nemotron 3 Ultra across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/lfm3-1-7b-vs-nemotron-3-ultra
- Last updated: October 27, 2026

- Shared sourced benchmarks: 12
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Nemotron 3 Ultra leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Nemotron 3 Ultra has the higher overall point estimate 47.72 to 22.99. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in knowledge, where the averages are 25.5 for LFM3-1.7B and 50.6 for Nemotron 3 Ultra.
- The biggest single benchmark swing is SWE Multilingual in Coding, with scores of 23% and 67.7%.
- Nemotron 3 Ultra also has the larger context window at 1M.

## Model Snapshot

| Property | LFM3-1.7B | Nemotron 3 Ultra |
|----------|----------|----------|
| Creator | LiquidAI | NVIDIA |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 256K | 1M |
| Overall Score | 22.99 | 47.72 |
| Benchmarks Covered | 24 | 25 |
| Pricing (input/output) | $0.00 / $0.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Directional only
- LFM3-1.7B public-lane score: 14.4 (Estimated · #123/134)
- Nemotron 3 Ultra public-lane score: 25 (Supported · #110/134)

| Benchmark | LFM3-1.7B | Nemotron 3 Ultra | Winner |
|-----------|-----------|-----------|--------|
| AutomationBench | 41.3% | Coming soon | Coming soon |
| BFCL v4 | 71.4% | Coming soon | Coming soon |
| τ³-bench results | 68.0% | 70.9% | Nemotron 3 Ultra |
| WebArena-Verified | 38.4% | Coming soon | Coming soon |
| MCP Atlas | 32.6% | Coming soon | Coming soon |
| ToolSandbox | 80.36% | Coming soon | Coming soon |
| Claw-Eval | 68.6% | Coming soon | Coming soon |
| HLE w/ tools | 13.9% | 37.4% | Nemotron 3 Ultra |
| Terminal-Bench 2.1 | 12.9% | 56.4% | Nemotron 3 Ultra |
| LiveClaw | 45.60% | Coming soon | Coming soon |
| PinchBench | Coming soon | 90.0% | Coming soon |
| BrowseComp | Coming soon | 44.4% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 50.9% | Coming soon |
| MazeBench | Coming soon | 0% | Coming soon |

### Coding

- Winner: Directional only
- LFM3-1.7B public-lane score: 13 (Estimated · #142/155)
- Nemotron 3 Ultra public-lane score: 22.2 (Supported · #120/155)

| Benchmark | LFM3-1.7B | Nemotron 3 Ultra | Winner |
|-----------|-----------|-----------|--------|
| SciCode | 28.5% | 44.6% | Nemotron 3 Ultra |
| SWE-bench Verified | 43.4% | 71.9% | Nemotron 3 Ultra |
| SWE Multilingual | 23% | 67.7% | Nemotron 3 Ultra |
| Terminal-Bench 2.1 | 12.9% | 56.4% | Nemotron 3 Ultra |
| LiveCodeBench v6 | 73.5% | 89.0% | Nemotron 3 Ultra |
| LiveCodeBench Pro | 31.7% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 86.0% | Coming soon |
| SWE-bench (Vals) | Coming soon | 69.0% | Coming soon |

### Reasoning

- Winner: Not comparable
- LFM3-1.7B public-lane score: 61.3 (Unranked · 1 rankable row)
- Nemotron 3 Ultra public-lane score: 69.5 (Unranked · 1 rankable row)

| Benchmark | LFM3-1.7B | Nemotron 3 Ultra | Winner |
|-----------|-----------|-----------|--------|
| RULER (128K) | 65.56% | Coming soon | Coming soon |
| CritPt | Coming soon | 3.1% | Coming soon |
| LongBench v2 | Coming soon | 61.9% | Coming soon |

### Knowledge

- Winner: Directional only
- LFM3-1.7B public-lane score: 25.5 (Estimated · #175/189)
- Nemotron 3 Ultra public-lane score: 50.6 (Estimated · #83/189)

| Benchmark | LFM3-1.7B | Nemotron 3 Ultra | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 63.4% | 87% | Nemotron 3 Ultra |
| GPQA-D | 63.4% | 87.0% | Nemotron 3 Ultra |
| HLE | 7.2% | 26.7% | Nemotron 3 Ultra |
| HLE w/o tools | Coming soon | 26.7% | Coming soon |
| MMLU-Pro | Coming soon | 86.8% | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 86.1% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 85.8% | Coming soon |

### Multilingual

- Winner: Not comparable
- LFM3-1.7B public-lane score: Coming soon
- Nemotron 3 Ultra public-lane score: 89.2 (#7/17)

| Benchmark | LFM3-1.7B | Nemotron 3 Ultra | Winner |
|-----------|-----------|-----------|--------|
| MMLU-ProX | Coming soon | 83% | Coming soon |

### Instruction Following

- Winner: Nemotron 3 Ultra
- LFM3-1.7B public-lane score: 71.7 (#76/156)
- Nemotron 3 Ultra public-lane score: 92.1 (#21/156)

| Benchmark | LFM3-1.7B | Nemotron 3 Ultra | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 96.7% | Coming soon | Coming soon |
| IFBench | 73.0% | 81.7% | Nemotron 3 Ultra |
| Multi-IF | 89.10% | Coming soon | Coming soon |
| IFStruct | 93.72% | Coming soon | Coming soon |

## FAQ

### Which is better overall, LFM3-1.7B or Nemotron 3 Ultra?

Nemotron 3 Ultra has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### Where is the biggest gap between LFM3-1.7B and Nemotron 3 Ultra?

The widest category gap is in knowledge, where the averages are 25.5 for LFM3-1.7B and 50.6 for Nemotron 3 Ultra.

### How many benchmarks does LFM3-1.7B cover on BenchLM?

LFM3-1.7B currently has 24 sourced benchmark scores on BenchLM.

### How many benchmarks does Nemotron 3 Ultra cover on BenchLM?

Nemotron 3 Ultra currently has 25 sourced benchmark scores on BenchLM.

## Related Comparisons

- [LFM3-1.7B vs LFM3-1.7B-Base](/compare/lfm3-1-7b-vs-lfm3-1-7b-base)
- [Nemotron 3 Ultra vs LFM3-1.7B-Base](/compare/lfm3-1-7b-base-vs-nemotron-3-ultra)
- [LFM3-1.7B vs LFM3-Audio-2B](/compare/lfm3-1-7b-vs-lfm3-audio-2b)
- [Nemotron 3 Ultra vs LFM3-Audio-2B](/compare/lfm3-audio-2b-vs-nemotron-3-ultra)

## Explore More

- [LFM3-1.7B profile](/models/lfm3-1-7b)
- [Nemotron 3 Ultra profile](/models/nemotron-3-ultra)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)