Model comparison
Gemini 3.8 Flash vs Llama 3.1 Nemotron 51b Instruct
Gemini 3.8 Flash is the stronger model overall, scoring 61.8 to 35.9 on the Noometry Index.
Last verified . 12 shared benchmarks.
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NVIDIASummary
- They share 12 benchmarks with published results for both. Gemini 3.8 Flash scores higher in 8 categories and Llama 3.1 Nemotron 51b Instruct in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Gemini 3.8 Flash leads 76.9 to 23.5.
- Llama 3.1 Nemotron 51b Instruct has downloadable open weights; the other is API-only.
Side by side
| Gemini 3.8 Flash | Llama 3.1 Nemotron 51b Instruct | |
|---|---|---|
| Provider | NVIDIA | |
| Noometry Index | 61.8 | 35.9 |
| Released | 2026-09-02 | — |
| Weights | Proprietary | Open |
| Context window | 1.05M | — |
| Max output | 66K | — |
| Input $ / M tokens | $0.75 | — |
| Output $ / M tokens | $3.75 | — |
| Results tracked | 50 | 12 |
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Category by category
Coding Gemini 3.8 Flash leads
Gemini 3.8 Flash: 59.2 (#15), Llama 3.1 Nemotron 51b Instruct: 35.6 (#222)
| Benchmark | Gemini 3.8 Flash | Llama 3.1 Nemotron 51b Instruct |
|---|---|---|
| LMArena Coding | 1510 | 1223 |
| DeepSWE | 73.8% | — |
| FrontierCode | 41.2% | — |
| CursorBench | 39.6% | — |
| LMArena WebDev | 1584 | — |
| FrontierSWE | 19.6% | — |
| SciCode | 56.6% | — |
| WeirdML | 84.8% | — |
| ALE-Bench | 1,270 | — |
Agentic & Tool Use Not comparable
Gemini 3.8 Flash: 41.8 (#21), Llama 3.1 Nemotron 51b Instruct: —
| Benchmark | Gemini 3.8 Flash | Llama 3.1 Nemotron 51b Instruct |
|---|---|---|
| APEX-Agents | 64.3% | — |
| Remote Labor Index | 5.8% | — |
| GDP.pdf | 23.4% | — |
| Vending-Bench 2 | 5,094 | — |
Reasoning Gemini 3.8 Flash leads
Gemini 3.8 Flash: 76.9 (#5), Llama 3.1 Nemotron 51b Instruct: 23.5 (#177)
| Benchmark | Gemini 3.8 Flash | Llama 3.1 Nemotron 51b Instruct |
|---|---|---|
| LMArena Hard Prompts | 1508 | 1203 |
| ARC-AGI-2 | 89.2% | — |
| NYT Connections (extended) | 97.4% | — |
| ARC-AGI-1 | 98.5% | — |
| CritPt | 18.3% | — |
| Chess Puzzles | 61% | — |
| Mystery Game Puzzles | 47% | — |
| DTBench | 95.7% | — |
| LMCA | 52.9% | — |
| Surface Evolver Bench | 76.9% | — |
| Epoch Capabilities Index | 156.71 | — |
Math Gemini 3.8 Flash leads
Gemini 3.8 Flash: 65.3 (#28), Llama 3.1 Nemotron 51b Instruct: 34.6 (#193)
| Benchmark | Gemini 3.8 Flash | Llama 3.1 Nemotron 51b Instruct |
|---|---|---|
| LMArena Math | 1528 | 1230 |
| FrontierMath (Tiers 1-3) | 68.4% | — |
| FrontierMath Tier 4 | 22% | — |
| OTIS Mock AIME 2024-2025 | 98.9% | — |
| ProofBench | 48% | — |
Knowledge Gemini 3.8 Flash leads
Gemini 3.8 Flash: 74.8 (#2), Llama 3.1 Nemotron 51b Instruct: 31.9 (#218)
| Benchmark | Gemini 3.8 Flash | Llama 3.1 Nemotron 51b Instruct |
|---|---|---|
| LMArena Expert | 1524 | 1167 |
| GPQA Diamond | 95.4% | — |
| Humanity's Last Exam | 44.5% | — |
| SimpleQA Verified | 69.7% | — |
Multimodal Not comparable
Gemini 3.8 Flash: 40.7 (#45), Llama 3.1 Nemotron 51b Instruct: —
| Benchmark | Gemini 3.8 Flash | Llama 3.1 Nemotron 51b Instruct |
|---|---|---|
| LMArena Vision | 1314 | — |
| Blueprint-Bench 2 | 38.6% | — |
| Furniture Assembly | 31.7% | — |
Multilingual Gemini 3.8 Flash leads
Gemini 3.8 Flash: 58.0 (#5), Llama 3.1 Nemotron 51b Instruct: 36.1 (#241)
| Benchmark | Gemini 3.8 Flash | Llama 3.1 Nemotron 51b Instruct |
|---|---|---|
| LMArena Non-English | 1491 | 1181 |
| LMArena Chinese | 1554 | 1180 |
| LMArena Russian | 1515 | 1187 |
| LMArena French | 1498 | — |
| LMArena German | 1493 | — |
| LMArena Japanese | 1502 | — |
| LMArena Korean | 1459 | — |
| LMArena Spanish | 1485 | — |
Instruction Following Gemini 3.8 Flash leads
Gemini 3.8 Flash: 78.0 (#13), Llama 3.1 Nemotron 51b Instruct: 62.9 (#233)
| Benchmark | Gemini 3.8 Flash | Llama 3.1 Nemotron 51b Instruct |
|---|---|---|
| LMArena Instruction Following | 1490 | 1201 |
Long Context Gemini 3.8 Flash leads
Gemini 3.8 Flash: 46.3 (#24), Llama 3.1 Nemotron 51b Instruct: 36.5 (#230)
| Benchmark | Gemini 3.8 Flash | Llama 3.1 Nemotron 51b Instruct |
|---|---|---|
| LMArena Longer Query | 1508 | 1205 |
Writing & Preference Gemini 3.8 Flash leads
Gemini 3.8 Flash: 72.2 (#15), Llama 3.1 Nemotron 51b Instruct: 43.4 (#229)
| Benchmark | Gemini 3.8 Flash | Llama 3.1 Nemotron 51b Instruct |
|---|---|---|
| LMArena Text | 1499 | 1228 |
| LMArena Creative Writing | 1492 | 1213 |
| LMArena Multi-Turn | 1501 | 1227 |
| EQ-Bench Creative Writing | 1748 | — |
Frequently asked questions
Is Gemini 3.8 Flash better than Llama 3.1 Nemotron 51b Instruct?
Gemini 3.8 Flash is the stronger model overall, scoring 61.8 to 35.9 on the Noometry Index.
Is Gemini 3.8 Flash or Llama 3.1 Nemotron 51b Instruct better for coding?
Gemini 3.8 Flash scores higher on coding benchmarks: 59.2 versus 35.6 in the Noometry coding category.
How many benchmarks do Gemini 3.8 Flash and Llama 3.1 Nemotron 51b Instruct share?
12 benchmarks have published results for both models. Gemini 3.8 Flash has 50 scored results on Noometry and Llama 3.1 Nemotron 51b Instruct has 12.