Model comparison
Gemini 3 Flash Preview vs Llama 3.1-405B
Gemini 3 Flash Preview is the stronger model overall, scoring 52.3 to 30.7 on the Noometry Index.
Last verified . 24 shared benchmarks.
Google
MetaSummary
- They share 24 benchmarks with published results for both. Gemini 3 Flash Preview scores higher in 9 categories and Llama 3.1-405B in 0 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in math, where Gemini 3 Flash Preview leads 51.7 to 18.4.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 95.6% for Gemini 3 Flash Preview and 9.7% for Llama 3.1-405B.
- Llama 3.1-405B has downloadable open weights; the other is API-only.
Side by side
| Gemini 3 Flash Preview | Llama 3.1-405B | |
|---|---|---|
| Provider | Meta | |
| Noometry Index | 52.3 | 30.7 |
| Released | 2025-12-17 | 2024-07-23 |
| Weights | Proprietary | Open |
| Context window | 1.05M | — |
| Max output | 66K | — |
| Input $ / M tokens | $0.50 | — |
| Output $ / M tokens | $3 | — |
| Results tracked | 59 | 42 |
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Category by category
Coding Gemini 3 Flash Preview leads
Gemini 3 Flash Preview: 50.9 (#42), Llama 3.1-405B: 33.1 (#262)
| Benchmark | Gemini 3 Flash Preview | Llama 3.1-405B |
|---|---|---|
| WeirdML | 61.6% | 21.4% |
| LMArena Coding | 1460 | 1291 |
| SWE-bench Verified | 75.4% | — |
| SWE-bench Verified (bash only) | 75.8% | — |
| LMArena WebDev | 1439 | — |
| SWE-bench Multilingual | 72.7% | — |
| GSO | 9.8% | — |
| ALE-Bench | 1,367 | — |
Agentic & Tool Use Gemini 3 Flash Preview leads
Gemini 3 Flash Preview: 38.7 (#29), Llama 3.1-405B: 21.0 (#140)
| Benchmark | Gemini 3 Flash Preview | Llama 3.1-405B |
|---|---|---|
| Terminal-Bench | 64.3% | — |
| TheAgentCompany | — | 7.4% |
| τ²-bench Airline | 82.5% | — |
| τ²-bench Banking | 27.3% | — |
| τ²-bench Retail | 76.8% | — |
| τ²-bench Telecom | 91.2% | — |
| Cybench | — | 7.5% |
| DeepResearch Bench | 49.8% | — |
| BALROG | 48.1% | — |
| GDP.pdf | 10% | — |
| LMArena Search | 1198 | — |
| Vending-Bench 2 | 3,635 | — |
Reasoning Gemini 3 Flash Preview leads
Gemini 3 Flash Preview: 49.2 (#37), Llama 3.1-405B: 16.8 (#300)
| Benchmark | Gemini 3 Flash Preview | Llama 3.1-405B |
|---|---|---|
| SimpleBench | 61.1% | 23% |
| LMArena Hard Prompts | 1465 | 1269 |
| DTBench | 89.1% | 61.4% |
| Epoch Capabilities Index | 151.8 | 128.75 |
| ForecastBench | 58.5 | 59.9 |
| ARC-AGI-2 | 33.6% | — |
| Kagi LLM Benchmark | — | 45% |
| NYT Connections (extended) | 83.1% | — |
| ARC-AGI-1 | 84.7% | — |
| Chess Puzzles | 40% | — |
| Mystery Game Puzzles | 26% | — |
| LMCA | 43.1% | — |
| BIG-Bench Hard | — | 82.9% |
| HellaSwag | — | 89.2% |
| PIQA | — | 85.9% |
| WinoGrande | — | 89.2% |
Math Gemini 3 Flash Preview leads
Gemini 3 Flash Preview: 51.7 (#55), Llama 3.1-405B: 18.4 (#290)
| Benchmark | Gemini 3 Flash Preview | Llama 3.1-405B |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 95.6% | 9.7% |
| LMArena Math | 1473 | 1281 |
| FrontierMath (Tiers 1-3) | 51.2% | — |
| FrontierMath Tier 4 | 17.1% | — |
| MathArena Final-Answer Competitions | 67.6% | — |
| ProofBench | 15% | — |
| Omni-MATH | — | 24.9% |
| MATH Level 5 | — | 49.8% |
| FrontierMath (Feb 2025 set) | 35.6% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |
Knowledge Gemini 3 Flash Preview leads
Gemini 3 Flash Preview: 58.8 (#33), Llama 3.1-405B: 30.4 (#227)
| Benchmark | Gemini 3 Flash Preview | Llama 3.1-405B |
|---|---|---|
| GPQA Diamond | 89.4% | 50.9% |
| LMArena Expert | 1462 | 1243 |
| SimpleQA Verified | 66.8% | — |
| MMLU-Pro | — | 72.3% |
| Confabulations | — | 17.6% |
| Vectara Hallucination Rate | 13.5% | — |
| GPQA (HELM) | — | 52.2% |
| ARC (AI2) Challenge | — | 95.3% |
| MMLU | — | 84.5% |
| TriviaQA | — | 82.7% |
Multimodal Not comparable
Gemini 3 Flash Preview: 45.5 (#16), Llama 3.1-405B: —
| Benchmark | Gemini 3 Flash Preview | Llama 3.1-405B |
|---|---|---|
| LMArena Vision | 1285 | — |
| GeoBench | 88% | — |
| VPCT | 72.6% | — |
| Blueprint-Bench 2 | 0% | — |
| LMArena Document | 1413 | — |
Multilingual Gemini 3 Flash Preview leads
Gemini 3 Flash Preview: 55.7 (#27), Llama 3.1-405B: 40.7 (#214)
| Benchmark | Gemini 3 Flash Preview | Llama 3.1-405B |
|---|---|---|
| LMArena Non-English | 1458 | 1248 |
| LMArena Chinese | 1511 | 1242 |
| LMArena French | 1477 | 1279 |
| LMArena German | 1497 | 1252 |
| LMArena Japanese | 1489 | 1208 |
| LMArena Korean | 1443 | 1184 |
| LMArena Russian | 1480 | 1265 |
| LMArena Spanish | 1469 | 1260 |
Instruction Following Gemini 3 Flash Preview leads
Gemini 3 Flash Preview: 75.7 (#56), Llama 3.1-405B: 65.9 (#214)
| Benchmark | Gemini 3 Flash Preview | Llama 3.1-405B |
|---|---|---|
| LMArena Instruction Following | 1437 | 1259 |
| IFEval | — | 81.1% |
Long Context Gemini 3 Flash Preview leads
Gemini 3 Flash Preview: 44.4 (#67), Llama 3.1-405B: 38.4 (#197)
| Benchmark | Gemini 3 Flash Preview | Llama 3.1-405B |
|---|---|---|
| LMArena Longer Query | 1452 | 1266 |
Writing & Preference Gemini 3 Flash Preview leads
Gemini 3 Flash Preview: 65.5 (#45), Llama 3.1-405B: 38.9 (#251)
| Benchmark | Gemini 3 Flash Preview | Llama 3.1-405B |
|---|---|---|
| LMArena Text | 1466 | 1284 |
| LMArena Creative Writing | 1457 | 1262 |
| LMArena Multi-Turn | 1471 | 1297 |
| EQ-Bench Creative Writing | — | 870 |
| WildBench | — | 78.3% |
Frequently asked questions
Is Gemini 3 Flash Preview better than Llama 3.1-405B?
Gemini 3 Flash Preview is the stronger model overall, scoring 52.3 to 30.7 on the Noometry Index.
Is Gemini 3 Flash Preview or Llama 3.1-405B better for coding?
Gemini 3 Flash Preview scores higher on coding benchmarks: 50.9 versus 33.1 in the Noometry coding category.
How many benchmarks do Gemini 3 Flash Preview and Llama 3.1-405B share?
24 benchmarks have published results for both models. Gemini 3 Flash Preview has 59 scored results on Noometry and Llama 3.1-405B has 42.