Model comparison
Nemotron Ultra 253B vs Qwen3.6-27B
Head-to-head evidence from 11 shared benchmark results across 5 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: Nemotron Ultra 253B #150 (Estimated); Qwen3.6-27B #93 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Nemotron Ultra 253B and Qwen3.6-27B share 11 comparable benchmark results. 0 of 8 categories are comparable. 0 results are unique to Nemotron Ultra 253B; 43 to Qwen3.6-27B.
Updated July 21, 2026- Shared results
- 11
- Nemotron Ultra 253B only
- 0
- Qwen3.6-27B only
- 43
- Comparable categories
- 0 / 8
Benchmark data for Nemotron Ultra 253B and Qwen3.6-27B is coming soon on BenchLM.
Confidence note. This is a partial-evidence comparison with 11 shared benchmark results across 5 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.
Qwen3.6-27B has the larger context window at 262K, compared with 32K for Nemotron Ultra 253B.
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 | Nemotron Ultra 253B | Δ | Qwen3.6-27B |
|---|---|---|---|
| Agentic | Nemotron Ultra 253BNot measured | MarginNo overlap | Qwen3.6-27B59.3 |
| Coding | Nemotron Ultra 253BNot measured | MarginNo overlap | Qwen3.6-27B77.5 |
| Knowledge | Nemotron Ultra 253BNot measured | MarginNo overlap | Qwen3.6-27B53.3 |
| Math | Nemotron Ultra 253BNot measured | MarginNo overlap | Qwen3.6-27B89.2 |
| Multimodal | Nemotron Ultra 253BNot measured | MarginNo overlap | Qwen3.6-27B76.7 |
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Nemotron Ultra 253B | Qwen3.6-27B | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Nemotron Ultra 253B$0 input / $0 output | Qwen3.6-27B$0 input / $0 output | Listed prices are equal. |
| Generation speedtokens per second | Nemotron Ultra 253BNot available | Qwen3.6-27BNot available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Nemotron Ultra 253BNot available | Qwen3.6-27BNot available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Nemotron Ultra 253B32K | Qwen3.6-27B262K | Qwen3.6-27B lists the larger context window. |
Benchmark Deep Dive
Agentic10 benchmarks
| Benchmark | Nemotron Ultra 253B | Qwen3.6-27B | Result |
|---|---|---|---|
| τ²-bench resultsSource | 11.4% | 94.2% | Qwen3.6-27B leads |
| Terminal-Bench 2.0Source | — | 59.3% | Not comparable |
| Claw-EvalSource | — | 72.4% | Not comparable |
| QwenClawBenchSource | — | 53.4% | Not comparable |
| QwenWebBenchSource | — | 1487 | Not comparable |
| AndroidWorldSource | — | 70.3% | Not comparable |
| AA Agentic IndexSource | — | 27.0% | Not comparable |
| GDPval-AASource | — | 32.0% | Not comparable |
| GDPval-AASource | — | 1140 | Not comparable |
| Gert LabsSource | — | 54.84% | Not comparable |
Coding8 benchmarks
| Benchmark | Nemotron Ultra 253B | Qwen3.6-27B | Result |
|---|---|---|---|
| AA-SciCodeSource | 34.7% | 39.8% | Qwen3.6-27B leads |
| SWE-bench VerifiedSource | — | 77.2% | Not comparable |
| SWE MultilingualSource | — | 71.3% | Not comparable |
| SWE-bench ProSource | — | 53.5% | Not comparable |
| Terminal-Bench 2.0Source | — | 59.3% | Not comparable |
| LiveCodeBenchSource | — | 83.9% | Not comparable |
| NL2RepoSource | — | 36.2% | Not comparable |
| AA Coding IndexSource | — | 53.7% | Not comparable |
Reasoning2 benchmarks
Knowledge12 benchmarks
| Benchmark | Nemotron Ultra 253B | Qwen3.6-27B | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | 9.1% | 37.0% | Qwen3.6-27B leads |
| AA-GPQA DiamondSource | 72.8% | 84.2% | Qwen3.6-27B leads |
| AA-HLESource | 8.1% | 21.6% | Qwen3.6-27B leads |
| AA-Omniscience IndexSource | -45.5% | -19.8% | Qwen3.6-27B leads |
| AA-Omniscience AccuracySource | 19.9% | 19.2% | Nemotron Ultra 253B leads |
| AA-Omniscience Hallucination RateSource | 81.7% | 48.3% | Qwen3.6-27B leads |
| MMLU-ProSource | — | 86.2% | Not comparable |
| MMLU-ReduxSource | — | 93.5% | Not comparable |
| SuperGPQASource | — | 66% | Not comparable |
| C-EvalSource | — | 91.4% | Not comparable |
| GPQASource | — | 87.8% | Not comparable |
| HLESource | — | 24% | Not comparable |
Math5 benchmarks
Multimodal16 benchmarks
| Benchmark | Nemotron Ultra 253B | Qwen3.6-27B | Result |
|---|---|---|---|
| MMMUSource | — | 82.9% | Not comparable |
| MMMU-ProSource | — | 75.8% | Not comparable |
| RealWorldQASource | — | 84.1% | Not comparable |
| DynaMathSource | — | 85.6% | Not comparable |
| MStarSource | — | 81.4% | Not comparable |
| SimpleVQASource | — | 56.1% | Not comparable |
| CharXivSource | — | 78.4% | Not comparable |
| CC-OCRSource | — | 81.2% | Not comparable |
| CountBenchSource | — | 97.8% | Not comparable |
| RefCOCO (avg)Source | — | 92.5% | Not comparable |
| ERQASource | — | 62.5% | Not comparable |
| Video-MME (with subtitle)Source | — | 87.7% | Not comparable |
| VideoMMMUSource | — | 84.4% | Not comparable |
| MLVU (M-Avg)Source | — | 86.6% | Not comparable |
| V*Source | — | 94.7% | Not comparable |
| AA-MMMU-ProSource | — | 74.6% | Not comparable |
Inst. Following1 benchmarks
| Benchmark | Nemotron Ultra 253B | Qwen3.6-27B | Result |
|---|---|---|---|
| AA-IFBenchSource | 38.2% | 67.6% | Qwen3.6-27B leads |
Frequently Asked Questions (3)
Can I compare Nemotron Ultra 253B and Qwen3.6-27B 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 Nemotron Ultra 253B and Qwen3.6-27B today?
Nemotron Ultra 253B: $0.00 input / $0.00 output per 1M tokens Qwen3.6-27B: $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.
Self-host vs API cost
Estimates at 50,000 req/day · 1000 tokens/req average.
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