Model comparison
Gemma 4 12B vs Nemotron Ultra 253B
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: Gemma 4 12B #137 (Estimated); Nemotron Ultra 253B #150 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Gemma 4 12B and Nemotron Ultra 253B share 11 comparable benchmark results. 0 of 8 categories are comparable. 12 results are unique to Gemma 4 12B; 0 to Nemotron Ultra 253B.
Updated July 23, 2026- Shared results
- 11
- Gemma 4 12B only
- 12
- Nemotron Ultra 253B only
- 0
- Comparable categories
- 0 / 8
Benchmark data for Gemma 4 12B and Nemotron Ultra 253B 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.
Gemma 4 12B has the larger context window at 256K, 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 | Gemma 4 12B | Δ | Nemotron Ultra 253B |
|---|---|---|---|
| Reasoning | Gemma 4 12B43.4 | MarginNo overlap | Nemotron Ultra 253BNot measured |
| Knowledge | Gemma 4 12B77.5 | MarginNo overlap | Nemotron Ultra 253BNot measured |
| Math | Gemma 4 12B77.5 | MarginNo overlap | Nemotron Ultra 253BNot measured |
| Multimodal | Gemma 4 12B69.1 | MarginNo overlap | Nemotron Ultra 253BNot measured |
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Gemma 4 12B | Nemotron Ultra 253B | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Gemma 4 12BNot available | Nemotron Ultra 253B$0 input / $0 output | A complete price comparison is not available. |
| Generation speedtokens per second | Gemma 4 12BNot available | Nemotron Ultra 253BNot available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Gemma 4 12BNot available | Nemotron Ultra 253BNot available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Gemma 4 12B256K | Nemotron Ultra 253B32K | Gemma 4 12B lists the larger context window. |
Benchmark Deep Dive
Agentic1 benchmarks
| Benchmark | Gemma 4 12B | Nemotron Ultra 253B | Result |
|---|---|---|---|
| τ²-bench resultsSource | 36.3% | 11.4% | Gemma 4 12B leads |
Coding1 benchmarks
| Benchmark | Gemma 4 12B | Nemotron Ultra 253B | Result |
|---|---|---|---|
| AA-SciCodeSource | 38.2% | 34.7% | Gemma 4 12B leads |
Reasoning4 benchmarks
Knowledge11 benchmarks
| Benchmark | Gemma 4 12B | Nemotron Ultra 253B | Result |
|---|---|---|---|
| GPQASource | 78.8% | — | Not comparable |
| GPQA-DSource | 78.8% | — | Not comparable |
| MMLU-ProSource | 77.2% | — | Not comparable |
| HLE w/o toolsSource | 5.2% | — | Not comparable |
| MMMLUSource | 83.4% | — | Not comparable |
| Artificial Analysis Intelligence IndexSource | 22.0% | 9.1% | Gemma 4 12B leads |
| AA-GPQA DiamondSource | 75.3% | 72.8% | Gemma 4 12B leads |
| AA-HLESource | 14.8% | 8.1% | Gemma 4 12B leads |
| AA-Omniscience IndexSource | -51.9% | -45.5% | Nemotron Ultra 253B leads |
| AA-Omniscience AccuracySource | 16.0% | 19.9% | Nemotron Ultra 253B leads |
| AA-Omniscience Hallucination RateSource | 80.8% | 81.7% | Gemma 4 12B leads |
Math1 benchmarks
| Benchmark | Gemma 4 12B | Nemotron Ultra 253B | Result |
|---|---|---|---|
| AIME26Source | 77.5% | — | Not comparable |
Multimodal4 benchmarks
Inst. Following1 benchmarks
| Benchmark | Gemma 4 12B | Nemotron Ultra 253B | Result |
|---|---|---|---|
| AA-IFBenchSource | 73.5% | 38.2% | Gemma 4 12B leads |
Frequently Asked Questions (3)
Can I compare Gemma 4 12B and Nemotron Ultra 253B 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 Gemma 4 12B and Nemotron Ultra 253B today?
Nemotron Ultra 253B: $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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