# Nemotron Ultra 253B vs o1-mini

> Side-by-side benchmark comparison for Nemotron Ultra 253B and o1-mini across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/nemotron-ultra-253b-vs-o1-mini
- Last updated: October 14, 2026

- Shared sourced benchmarks: 2
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Nemotron Ultra 253B and o1-mini share only 2 sourced benchmark rows.

## Summary

- Only 2 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Nemotron Ultra 253B has the lower published output-token price.
- o1-mini has the larger published context window at 128K.

## Model Snapshot

| Property | Nemotron Ultra 253B | o1-mini |
|----------|----------|----------|
| Creator | NVIDIA | OpenAI |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 32K | 128K |
| Independent public score (not head-to-head) | null | null |
| Benchmarks Covered | 5 | 7 |
| Pricing (input/output) | $0.00 / $0.00 | $1.10 / $4.40 |

## Category Breakdown

### Coding

- Winner: Insufficient shared evidence
- Nemotron Ultra 253B public-lane score: Coming soon
- o1-mini public-lane score: Coming soon

| Benchmark | Nemotron Ultra 253B | o1-mini | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench | 66.3% | Coming soon | Coming soon |
| HumanEval | Coming soon | 92.4% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Nemotron Ultra 253B public-lane score: Coming soon
- o1-mini public-lane score: Coming soon

| Benchmark | Nemotron Ultra 253B | o1-mini | Winner |
|-----------|-----------|-----------|--------|
| DROP | Coming soon | 83.9% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Nemotron Ultra 253B public-lane score: Coming soon
- o1-mini public-lane score: Coming soon

| Benchmark | Nemotron Ultra 253B | o1-mini | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 76.0% | 60% | Nemotron Ultra 253B |
| MMLU | Coming soon | 85.2% | Coming soon |
| SimpleQA | Coming soon | 7.6% | Coming soon |

### Multilingual

- Winner: Insufficient shared evidence
- Nemotron Ultra 253B public-lane score: Coming soon
- o1-mini public-lane score: Coming soon

| Benchmark | Nemotron Ultra 253B | o1-mini | Winner |
|-----------|-----------|-----------|--------|
| MGSM | Coming soon | 89.9% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Nemotron Ultra 253B public-lane score: 0 (#127/128)
- o1-mini public-lane score: Coming soon

| Benchmark | Nemotron Ultra 253B | o1-mini | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 89.5% | Coming soon | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Nemotron Ultra 253B public-lane score: Coming soon
- o1-mini public-lane score: Coming soon

| Benchmark | Nemotron Ultra 253B | o1-mini | Winner |
|-----------|-----------|-----------|--------|
| AIME 2025 | 72.5% | Coming soon | Coming soon |
| MATH-500 | 97% | 90% | Nemotron Ultra 253B |

## FAQ

### Is there enough evidence to pick between Nemotron Ultra 253B and o1-mini?

Not yet. The models share only 2 sourced benchmark rows, so this mirror reports the available measurements and metadata without naming a broad winner.

### What can I compare safely on this page?

Published pricing, context windows, model type, and individual shared benchmark rows are directly comparable. Independent overall scores and non-overlapping benchmark coverage are labeled separately and should not be read as a controlled head-to-head result.

## Related Comparisons

- [Nemotron Ultra 253B vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-nemotron-ultra-253b)
- [o1-mini vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-o1-mini)
- [Nemotron Ultra 253B vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-nemotron-ultra-253b)
- [o1-mini vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-o1-mini)

## Explore More

- [Nemotron Ultra 253B profile](/models/nemotron-ultra-253b)
- [o1-mini profile](/models/o1-mini)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)