# Claude Fable 5.1 vs Nemotron 3.5 Super VL 120B A12B NVFP4

> Side-by-side benchmark comparison for Claude Fable 5.1 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/claude-fable-5-1-vs-nemotron-3-5-super-vl-120b-a12b-nvfp4
- Last updated: October 15, 2026

- Shared sourced benchmarks: 4
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Pick Claude Fable 5.1 if you want the stronger benchmark profile. Nemotron 3.5 Super VL 120B A12B NVFP4 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Claude Fable 5.1 leads overall 83.18 to 58.
- The clearest category separation is in reasoning, where the averages are 85.2 for Claude Fable 5.1 and 72.4 for Nemotron 3.5 Super VL 120B A12B NVFP4.
- The biggest single benchmark swing is HLE in Knowledge, with scores of 65% and 29%.
- 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.

## Model Snapshot

| Property | Claude Fable 5.1 | Nemotron 3.5 Super VL 120B A12B NVFP4 |
|----------|----------|----------|
| Creator | Anthropic | NVIDIA |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Overall Score | 83.18 | null |
| Benchmarks Covered | 33 | 18 |
| Pricing (input/output) | $10.00 / $50.00 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Claude Fable 5.1 public-lane score: 80.9 (Supported · #2/127)
- Nemotron 3.5 Super VL 120B A12B NVFP4 public-lane score: Coming soon

| Benchmark | Claude Fable 5.1 | Nemotron 3.5 Super VL 120B A12B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 4.0 | 55.80% | Coming soon | Coming soon |
| Terminal-Bench-Science 0.1 | 52.6% | Coming soon | Coming soon |
| OSWorld 2.0 | 41.7% | Coming soon | Coming soon |
| AutomationBench | 31.4% | Coming soon | Coming soon |
| Toolathlon-Verified | 77.8% | Coming soon | Coming soon |
| Toolathlon Verified Pass@3 | 81.5% | Coming soon | Coming soon |
| Toolathlon Verified Pass³ | 73.1% | Coming soon | Coming soon |
| Toolathlon Verified avg. turns | 23.7 turns | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 85.0% | Coming soon | Coming soon |
| ApprenticeBench | 72% | Coming soon | Coming soon |
| CWE-bench v1 | 58.0% | Coming soon | Coming soon |
| MazeBench | 10% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 60.8% | Coming soon |
| 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
- Claude Fable 5.1 public-lane score: 76.8 (Supported · #3/150)
- Nemotron 3.5 Super VL 120B A12B NVFP4 public-lane score: Coming soon

| Benchmark | Claude Fable 5.1 | Nemotron 3.5 Super VL 120B A12B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| Bug Hunt Bench | 43.0 fixes | Coming soon | Coming soon |
| SWE-bench Pro | 81.2% | 51.3% | Claude Fable 5.1 |
| SWE Multilingual | 89.1% | 67% | Claude Fable 5.1 |
| SWE Multimodal | 54.7% | Coming soon | Coming soon |
| DeepSWE | 67.4% | Coming soon | Coming soon |
| FrontierSWE v2 | 56.3% | Coming soon | Coming soon |
| ProgramBench | 87.6% | Coming soon | Coming soon |
| CursorBench 3.2 | 73.4% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 90.5% | Coming soon | Coming soon |
| CursorBench 4.0 | 51.8% | Coming soon | Coming soon |
| PostTrainBench v1.1 | 40.2% | Coming soon | Coming soon |
| LiveCodeBench v6 | Coming soon | 87.4% | Coming soon |
| SWE-bench Verified | Coming soon | 71.1% | Coming soon |

### Reasoning

- Winner: Not comparable
- Claude Fable 5.1 public-lane score: 85.2 (#4/28)
- Nemotron 3.5 Super VL 120B A12B NVFP4 public-lane score: 72.4 (Unranked · 1 rankable row)

| Benchmark | Claude Fable 5.1 | Nemotron 3.5 Super VL 120B A12B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-1 | 97.50% | Coming soon | Coming soon |
| ARC-AGI-2 | 90% | Coming soon | Coming soon |
| GraphWalks BFS 256K–1M | 65.0% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Claude Fable 5.1 public-lane score: Coming soon
- Nemotron 3.5 Super VL 120B A12B NVFP4 public-lane score: 59.5 (Unranked · 5 rankable rows)

| Benchmark | Claude Fable 5.1 | 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
- Claude Fable 5.1 public-lane score: 86.7 (Supported · #2/184)
- Nemotron 3.5 Super VL 120B A12B NVFP4 public-lane score: Coming soon

| Benchmark | Claude Fable 5.1 | Nemotron 3.5 Super VL 120B A12B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| HLE | 65% | 29% | Claude Fable 5.1 |
| HLE w/o tools | 60.9% | 31.4% | Claude Fable 5.1 |
| GPQA Diamond (Vals) | 93.4% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 92.4% | Coming soon | Coming soon |
| GPQA-D | Coming soon | 89.9% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Claude Fable 5.1 public-lane score: Coming soon
- Nemotron 3.5 Super VL 120B A12B NVFP4 public-lane score: 68.1 (#71/146)

| Benchmark | Claude Fable 5.1 | Nemotron 3.5 Super VL 120B A12B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| Gray Swan IPI (15 attempts) | 1.0% | Coming soon | Coming soon |
| IFBench | Coming soon | 71.5% | Coming soon |

### Mathematics

- Winner: Not comparable
- Claude Fable 5.1 public-lane score: 96.8 (Unranked · 2 rankable rows)
- Nemotron 3.5 Super VL 120B A12B NVFP4 public-lane score: Coming soon

| Benchmark | Claude Fable 5.1 | Nemotron 3.5 Super VL 120B A12B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 90.175% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 87.805% | Coming soon | Coming soon |
| Apex Shortlist | Coming soon | 89.4% | Coming soon |

## FAQ

### Which is better overall, Claude Fable 5.1 or Nemotron 3.5 Super VL 120B A12B NVFP4?

Claude Fable 5.1 is ahead overall on BenchLM right now.

### Where is the biggest gap between Claude Fable 5.1 and Nemotron 3.5 Super VL 120B A12B NVFP4?

The widest category gap is in reasoning, where the averages are 85.2 for Claude Fable 5.1 and 72.4 for Nemotron 3.5 Super VL 120B A12B NVFP4.

### How many benchmarks does Claude Fable 5.1 cover on BenchLM?

Claude Fable 5.1 currently has 33 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

- [Claude Fable 5.1 vs Claude Fable 5](/compare/claude-fable-vs-claude-fable-5-1)
- [Nemotron 3.5 Super VL 120B A12B NVFP4 vs Claude Fable 5](/compare/claude-fable-vs-nemotron-3-5-super-vl-120b-a12b-nvfp4)
- [Claude Fable 5.1 vs Nemotron 3.5 Super VL 120B A12B](/compare/claude-fable-5-1-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)

## Explore More

- [Claude Fable 5.1 profile](/models/claude-fable-5-1)
- [Nemotron 3.5 Super VL 120B A12B NVFP4 profile](/models/nemotron-3-5-super-vl-120b-a12b-nvfp4)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
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- [Overall Rankings](/best/overall)