# Mellum2.1-12B-A2.5B-Thinking vs Nemotron 3.5 Super VL 120B A12B NVFP4

> Side-by-side benchmark comparison for Mellum2.1-12B-A2.5B-Thinking and Nemotron 3.5 Super VL 120B A12B NVFP4 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/mellum2-1-12b-a2-5b-thinking-vs-nemotron-3-5-super-vl-120b-a12b-nvfp4
- Last updated: October 15, 2026

- Shared sourced benchmarks: 5
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Pick Nemotron 3.5 Super VL 120B A12B NVFP4 if you want the stronger benchmark profile. Mellum2.1-12B-A2.5B-Thinking only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Nemotron 3.5 Super VL 120B A12B NVFP4 leads overall 58 to 39.
- The biggest single benchmark swing is Terminal-Bench 2.1 in Agentic, with scores of 17.4% and 60.8%.
- Nemotron 3.5 Super VL 120B A12B NVFP4 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Nemotron 3.5 Super VL 120B A12B NVFP4 also has the larger context window at 1M.

## Model Snapshot

| Property | Mellum2.1-12B-A2.5B-Thinking | Nemotron 3.5 Super VL 120B A12B NVFP4 |
|----------|----------|----------|
| Creator | JetBrains | NVIDIA |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 128K | 1M |
| Overall Score | null | null |
| Benchmarks Covered | 7 | 18 |
| Pricing (input/output) | $0.00 / $0.00 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon
- Nemotron 3.5 Super VL 120B A12B NVFP4 public-lane score: Coming soon

| Benchmark | Mellum2.1-12B-A2.5B-Thinking | Nemotron 3.5 Super VL 120B A12B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 17.4% | 60.8% | Nemotron 3.5 Super VL 120B A12B NVFP4 |
| τ²-bench Airline | Coming soon | 75.8% | Coming soon |
| τ³-bench results | Coming soon | 17.8% | Coming soon |
| BrowseComp | Coming soon | 77.5% | Coming soon |

### Coding

- Winner: Not comparable
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon
- Nemotron 3.5 Super VL 120B A12B NVFP4 public-lane score: Coming soon

| Benchmark | Mellum2.1-12B-A2.5B-Thinking | Nemotron 3.5 Super VL 120B A12B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench v6 | 82.0% | 87.4% | Nemotron 3.5 Super VL 120B A12B NVFP4 |
| SWE-bench Verified | 47% | 71.1% | Nemotron 3.5 Super VL 120B A12B NVFP4 |
| SWE-bench Pro | 28% | 51.3% | Nemotron 3.5 Super VL 120B A12B NVFP4 |
| SWE Multilingual | Coming soon | 67% | Coming soon |

### Reasoning

- Winner: Not comparable
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon
- Nemotron 3.5 Super VL 120B A12B NVFP4 public-lane score: 72.4 (Unranked · 1 rankable row)

### Multimodal & Grounded

- Winner: Not comparable
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon
- Nemotron 3.5 Super VL 120B A12B NVFP4 public-lane score: 59.5 (Unranked · 5 rankable rows)

| Benchmark | Mellum2.1-12B-A2.5B-Thinking | Nemotron 3.5 Super VL 120B A12B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| BabyVision | Coming soon | 29.5% | Coming soon |
| MMLongBench-Doc | Coming soon | 62.8% | Coming soon |
| V* | Coming soon | 86.0% | Coming soon |
| MathVision | Coming soon | 77.8% | Coming soon |
| CharXiv | Coming soon | 79.9% | Coming soon |

### Knowledge

- Winner: Not comparable
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon
- Nemotron 3.5 Super VL 120B A12B NVFP4 public-lane score: Coming soon

| Benchmark | Mellum2.1-12B-A2.5B-Thinking | Nemotron 3.5 Super VL 120B A12B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| MMLU-Redux | 87.8% | Coming soon | Coming soon |
| GPQA-D | 64.6% | 89.9% | Nemotron 3.5 Super VL 120B A12B NVFP4 |
| HLE w/o tools | Coming soon | 31.4% | Coming soon |
| HLE | Coming soon | 29% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon
- Nemotron 3.5 Super VL 120B A12B NVFP4 public-lane score: 68.1 (#71/146)

| Benchmark | Mellum2.1-12B-A2.5B-Thinking | Nemotron 3.5 Super VL 120B A12B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 90.6% | Coming soon | Coming soon |
| IFBench | Coming soon | 71.5% | Coming soon |

### Mathematics

- Winner: Not comparable
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon
- Nemotron 3.5 Super VL 120B A12B NVFP4 public-lane score: Coming soon

| Benchmark | Mellum2.1-12B-A2.5B-Thinking | Nemotron 3.5 Super VL 120B A12B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| Apex Shortlist | Coming soon | 89.4% | Coming soon |

## FAQ

### Which is better overall, Mellum2.1-12B-A2.5B-Thinking or Nemotron 3.5 Super VL 120B A12B NVFP4?

Nemotron 3.5 Super VL 120B A12B NVFP4 is ahead overall on BenchLM right now.

### How many benchmarks does Mellum2.1-12B-A2.5B-Thinking cover on BenchLM?

Mellum2.1-12B-A2.5B-Thinking currently has 7 sourced benchmark scores on BenchLM.

### How many benchmarks does Nemotron 3.5 Super VL 120B A12B NVFP4 cover on BenchLM?

Nemotron 3.5 Super VL 120B A12B NVFP4 currently has 18 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Mellum2.1-12B-A2.5B-Thinking vs Nemotron 3.5 Super VL 120B A12B](/compare/mellum2-1-12b-a2-5b-thinking-vs-nemotron-3-5-super-vl-120b-a12b)
- [Nemotron 3.5 Super VL 120B A12B NVFP4 vs Nemotron 3.5 Super VL 120B A12B](/compare/nemotron-3-5-super-vl-120b-a12b-vs-nemotron-3-5-super-vl-120b-a12b-nvfp4)
- [Mellum2.1-12B-A2.5B-Thinking vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-mellum2-1-12b-a2-5b-thinking)
- [Nemotron 3.5 Super VL 120B A12B NVFP4 vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-nemotron-3-5-super-vl-120b-a12b-nvfp4)

## Explore More

- [Mellum2.1-12B-A2.5B-Thinking profile](/models/mellum2-1-12b-a2-5b-thinking)
- [Nemotron 3.5 Super VL 120B A12B NVFP4 profile](/models/nemotron-3-5-super-vl-120b-a12b-nvfp4)
- [Compare Pricing](/llm-pricing)
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- [Overall Rankings](/best/overall)