Model comparison
GPT-OSS 120B vs Nemotron 3 Ultra
Head-to-head evidence from 20 shared benchmark results across 6 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Verified leaderboard positions: GPT-OSS 120B unranked; Nemotron 3 Ultra #24
BenchAlign evidence: GPT-OSS 120B supported; Nemotron 3 Ultra not scored. Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. GPT-OSS 120B and Nemotron 3 Ultra share 20 comparable benchmark results. 0 of 8 categories are comparable. 8 results are unique to GPT-OSS 120B; 19 to Nemotron 3 Ultra.
Updated July 16, 2026- Shared results
- 20
- GPT-OSS 120B only
- 8
- Nemotron 3 Ultra only
- 19
- Comparable categories
- 0 / 8
Benchmark data for GPT-OSS 120B and Nemotron 3 Ultra is coming soon on BenchLM.
Confidence note. This is a partial-evidence comparison with 20 shared benchmark results across 6 evidence categories; 0 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
BenchLM has partial data for these models, but not enough overlapping benchmark coverage to produce a fair score-level comparison yet.
Nemotron 3 Ultra has the larger context window at 1M, compared with 128K for GPT-OSS 120B.
Category breakdown
Exact category averages are shown below. Not measured means BenchLM does not have enough sourced public coverage for that model and category.
| Category | GPT-OSS 120B | Δ | Nemotron 3 Ultra |
|---|---|---|---|
| Agentic | GPT-OSS 120BNot measured | MarginNo overlap | Nemotron 3 Ultra51.3 |
| Coding | GPT-OSS 120BNot measured | MarginNo overlap | Nemotron 3 Ultra58.3 |
| Reasoning | GPT-OSS 120BNot measured | MarginNo overlap | Nemotron 3 Ultra61.9 |
| Knowledge | GPT-OSS 120BNot measured | MarginNo overlap | Nemotron 3 Ultra54.2 |
| Multilingual | GPT-OSS 120BNot measured | MarginNo overlap | Nemotron 3 Ultra83.0 |
| Inst. Following | GPT-OSS 120BNot measured | MarginNo overlap | Nemotron 3 Ultra81.7 |
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | GPT-OSS 120B | Nemotron 3 Ultra | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | GPT-OSS 120B$0 input / $0 output | Nemotron 3 Ultra$0 input / $0 output | Listed prices are equal. |
| Generation speedtokens per second | GPT-OSS 120B262 tok/s | Nemotron 3 UltraNot available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | GPT-OSS 120B0.79 s | Nemotron 3 UltraNot available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | GPT-OSS 120B128K | Nemotron 3 Ultra1M | Nemotron 3 Ultra lists the larger context window. |
Benchmark Deep Dive
Agentic15 benchmarks
| Benchmark | GPT-OSS 120B | Nemotron 3 Ultra | Result |
|---|---|---|---|
| AA Agentic IndexSource | 13.2% | 27.4% | Nemotron 3 Ultra leads |
| APEX-Agents-AASource | 3.1% | — | Not comparable |
| τ²-bench resultsSource | 65.8% | 83.3% | Nemotron 3 Ultra leads |
| GDPval-AASource | 15.0% | 33.2% | Nemotron 3 Ultra leads |
| GDPval-AASource | 799 | 1164 | Nemotron 3 Ultra leads |
| Gert LabsSource | 29.61% | — | Not comparable |
| AA EnterpriseOps-GymSource | 25.5% | 28.9% | Nemotron 3 Ultra leads |
| AA Harvey LABSource | 0.0% | 3.3% | Nemotron 3 Ultra leads |
| AA ITBenchSource | 5.6% | — | Not comparable |
| Terminal-Bench 2.0Source | — | 56.4% | Not comparable |
| PinchBenchSource | — | 90.0% | Not comparable |
| BrowseCompSource | — | 44.4% | Not comparable |
| τ³-bench resultsSource | — | 70.9% | Not comparable |
| HLE w/ toolsSource | — | 37.4% | Not comparable |
| AA BriefcaseSource | — | 870 | Not comparable |
Coding10 benchmarks
| Benchmark | GPT-OSS 120B | Nemotron 3 Ultra | Result |
|---|---|---|---|
| React Native EvalsSource | 71.6% | — | Not comparable |
| AA Coding IndexSource | 30.4% | 49.3% | Nemotron 3 Ultra leads |
| Terminal-Bench HardSource | 23.5% | 36.4% | Nemotron 3 Ultra leads |
| AA-SciCodeSource | 38.9% | 39.9% | Nemotron 3 Ultra leads |
| AA LiveCodeBenchSource | 87.8% | — | Not comparable |
| SWE-bench VerifiedSource | — | 71.9% | Not comparable |
| SWE MultilingualSource | — | 67.7% | Not comparable |
| LiveCodeBench v6Source | — | 89.0% | Not comparable |
| SciCodeSource | — | 44.6% | Not comparable |
| Terminal-Bench 2.0Source | — | 56.4% | Not comparable |
Reasoning3 benchmarks
Knowledge13 benchmarks
| Benchmark | GPT-OSS 120B | Nemotron 3 Ultra | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | 23.8% | 37.8% | Nemotron 3 Ultra leads |
| AA-GPQA DiamondSource | 78.2% | 86.7% | Nemotron 3 Ultra leads |
| AA-HLESource | 18.5% | 26.6% | Nemotron 3 Ultra leads |
| AA-Omniscience IndexSource | -50.0% | -0.8% | Nemotron 3 Ultra leads |
| AA-Omniscience AccuracySource | 21.5% | 21.6% | Nemotron 3 Ultra leads |
| AA-Omniscience Hallucination RateSource | 91.2% | 28.5% | Nemotron 3 Ultra leads |
| AA Openness IndexSource | 38.9% | 83.3% | Nemotron 3 Ultra leads |
| AA MMLU-ProSource | 80.8% | — | Not comparable |
| GPQASource | — | 87% | Not comparable |
| GPQA-DSource | — | 87.0% | Not comparable |
| HLESource | — | 26.7% | Not comparable |
| HLE w/o toolsSource | — | 26.7% | Not comparable |
| MMLU-ProSource | — | 86.8% | Not comparable |
Math1 benchmarks
| Benchmark | GPT-OSS 120B | Nemotron 3 Ultra | Result |
|---|---|---|---|
| AA AIME 2025Source | 93.4% | — | Not comparable |
Multilingual2 benchmarks
Multimodal1 benchmarks
| Benchmark | GPT-OSS 120B | Nemotron 3 Ultra | Result |
|---|---|---|---|
| Design Arena WebsiteSource | 1002 | 1132 | Nemotron 3 Ultra leads |
Frequently Asked Questions (3)
Can I compare GPT-OSS 120B and Nemotron 3 Ultra on BenchLM yet?
Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.
Why does this comparison show “coming soon”?
BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.
What data is available for GPT-OSS 120B and Nemotron 3 Ultra today?
GPT-OSS 120B: $0.00 input / $0.00 output per 1M tokens Nemotron 3 Ultra: $0.00 input / $0.00 output per 1M tokens Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.
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