# Mistral Medium 3.5 128B vs Nemotron 3 Ultra

> Side-by-side benchmark comparison for Mistral Medium 3.5 128B and Nemotron 3 Ultra across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/mistral-medium-3-5-128b-vs-nemotron-3-ultra
- Last updated: October 15, 2026

- Shared sourced benchmarks: 6
- 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 47.12 to 33.72. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in knowledge, where the averages are 31.8 for Mistral Medium 3.5 128B and 50.3 for Nemotron 3 Ultra.
- The biggest single benchmark swing is GPQA Diamond (Vals) in Knowledge, with scores of 34.8% and 86.1%.
- Nemotron 3 Ultra is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Nemotron 3 Ultra also has the larger context window at 1M.

## Model Snapshot

| Property | Mistral Medium 3.5 128B | Nemotron 3 Ultra |
|----------|----------|----------|
| Creator | Mistral | NVIDIA |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 256K | 1M |
| Overall Score | 33.72 | 47.12 |
| Benchmarks Covered | 7 | 24 |
| Pricing (input/output) | $1.50 / $7.50 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Nemotron 3 Ultra
- Mistral Medium 3.5 128B public-lane score: 19.9 (Supported · #106/126)
- Nemotron 3 Ultra public-lane score: 28 (Supported · #95/126)

| Benchmark | Mistral Medium 3.5 128B | Nemotron 3 Ultra | Winner |
|-----------|-----------|-----------|--------|
| τ³-bench results | 91.4% | 70.9% | Mistral Medium 3.5 128B |
| Gert Labs | 39.10% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 39.0% | 50.9% | Nemotron 3 Ultra |
| Terminal-Bench 2.1 | Coming soon | 56.4% | Coming soon |
| PinchBench | Coming soon | 90.0% | Coming soon |
| BrowseComp | Coming soon | 44.4% | Coming soon |
| HLE w/ tools | Coming soon | 37.4% | Coming soon |

### Coding

- Winner: Directional only
- Mistral Medium 3.5 128B public-lane score: 22.7 (Estimated · #113/149)
- Nemotron 3 Ultra public-lane score: 21.9 (Supported · #115/149)

| Benchmark | Mistral Medium 3.5 128B | Nemotron 3 Ultra | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 77.6% | 71.9% | Mistral Medium 3.5 128B |
| SWE-bench (Vals) | 66.4% | 69.0% | Nemotron 3 Ultra |
| SWE Multilingual | Coming soon | 67.7% | Coming soon |
| LiveCodeBench v6 | Coming soon | 89.0% | Coming soon |
| SciCode | Coming soon | 44.6% | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 56.4% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 86.0% | Coming soon |

### Reasoning

- Winner: Not comparable
- Mistral Medium 3.5 128B public-lane score: 73.5 (Unranked · 2 rankable rows)
- Nemotron 3 Ultra public-lane score: 70.8 (#20/29)

| Benchmark | Mistral Medium 3.5 128B | Nemotron 3 Ultra | Winner |
|-----------|-----------|-----------|--------|
| CritPt | Coming soon | 3.1% | Coming soon |
| LongBench v2 | Coming soon | 61.9% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Mistral Medium 3.5 128B public-lane score: 60.1 (Unranked · 1 rankable row)
- Nemotron 3 Ultra public-lane score: Coming soon

### Knowledge

- Winner: Directional only
- Mistral Medium 3.5 128B public-lane score: 31.8 (Supported · #146/182)
- Nemotron 3 Ultra public-lane score: 50.3 (Estimated · #78/182)

| Benchmark | Mistral Medium 3.5 128B | Nemotron 3 Ultra | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 34.8% | 86.1% | Nemotron 3 Ultra |
| MMLU-Pro (Vals) | 75.3% | 85.8% | Nemotron 3 Ultra |
| GPQA | Coming soon | 87% | Coming soon |
| GPQA-D | Coming soon | 87.0% | Coming soon |
| HLE | Coming soon | 26.7% | Coming soon |
| HLE w/o tools | Coming soon | 26.7% | Coming soon |
| MMLU-Pro | Coming soon | 86.8% | Coming soon |

### Multilingual

- Winner: Not comparable
- Mistral Medium 3.5 128B public-lane score: Coming soon
- Nemotron 3 Ultra public-lane score: 89.2 (#7/17)

| Benchmark | Mistral Medium 3.5 128B | Nemotron 3 Ultra | Winner |
|-----------|-----------|-----------|--------|
| MMLU-ProX | Coming soon | 83% | Coming soon |

### Instruction Following

- Winner: Directional only
- Mistral Medium 3.5 128B public-lane score: 84 (#50/146)
- Nemotron 3 Ultra public-lane score: 92.1 (#20/146)

| Benchmark | Mistral Medium 3.5 128B | Nemotron 3 Ultra | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 81.7% | Coming soon |

## FAQ

### Which is better overall, Mistral Medium 3.5 128B 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 Mistral Medium 3.5 128B and Nemotron 3 Ultra?

The widest category gap is in knowledge, where the averages are 31.8 for Mistral Medium 3.5 128B and 50.3 for Nemotron 3 Ultra.

### How many benchmarks does Mistral Medium 3.5 128B cover on BenchLM?

Mistral Medium 3.5 128B currently has 7 sourced benchmark scores on BenchLM.

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

Nemotron 3 Ultra currently has 24 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Mistral Medium 3.5 128B vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-mistral-medium-3-5-128b)
- [Nemotron 3 Ultra vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-nemotron-3-ultra)
- [Mistral Medium 3.5 128B vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-mistral-medium-3-5-128b)
- [Nemotron 3 Ultra vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-nemotron-3-ultra)

## Explore More

- [Mistral Medium 3.5 128B profile](/models/mistral-medium-3-5-128b)
- [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)