Model comparison
Grok 3 vs Llama 3-8B
Grok 3 is the stronger model overall, scoring 39.6 to 25.3 on the Noometry Index.
Last verified . 21 shared benchmarks.
MetaSummary
- They share 21 benchmarks with published results for both. Grok 3 scores higher in 7 categories and Llama 3-8B in 1 category; 7 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Grok 3 leads 46.0 to 7.8.
- The biggest single-benchmark swing is MATH Level 5: 88.7% for Grok 3 and 6.1% for Llama 3-8B.
- Llama 3-8B has downloadable open weights; the other is API-only.
Side by side
| Grok 3 | Llama 3-8B | |
|---|---|---|
| Provider | xAI | Meta |
| Noometry Index | 39.6 | 25.3 |
| Released | 2025-04-09 | 2024-04-18 |
| Weights | Proprietary | Open |
| Context window | — | 8K |
| Max output | — | 8K |
| Input $ / M tokens | — | $0.14 |
| Output $ / M tokens | — | $0.14 |
| Results tracked | 40 | 34 |
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Category by category
Coding Grok 3 leads
Grok 3: 41.5 (#113), Llama 3-8B: 30.5 (#285)
| Benchmark | Grok 3 | Llama 3-8B |
|---|---|---|
| LMArena Coding | 1432 | 1152 |
| Aider Polyglot | 53.3% | — |
| WeirdML | 37.2% | — |
| BigCodeBench Instruct | — | 31.9% |
| BigCodeBench Complete | — | 36.9% |
| HumanEval+ | — | 56.7% |
| MBPP+ | — | 54.8% |
Agentic & Tool Use Not comparable
Grok 3: 30.2 (#69), Llama 3-8B: —
| Benchmark | Grok 3 | Llama 3-8B |
|---|---|---|
| BALROG | 29.5% | — |
Reasoning Too close to call
Grok 3: 13.8 (#322), Llama 3-8B: 13.8 (#321)
| Benchmark | Grok 3 | Llama 3-8B |
|---|---|---|
| LMArena Hard Prompts | 1433 | 1133 |
| Epoch Capabilities Index | 138.34 | 116.33 |
| ARC-AGI-2 | 0% | — |
| SimpleBench | 36.1% | — |
| Kagi LLM Benchmark | 61.3% | — |
| ARC-AGI-1 | 5.5% | — |
| Chess Puzzles | — | 0% |
| DTBench | — | 43.9% |
| Adversarial NLI | — | 57.3% |
| ForecastBench | — | 58.6 |
| WinoGrande | — | 75.7% |
Math Grok 3 leads
Grok 3: 36.2 (#122), Llama 3-8B: 8.3 (#317)
| Benchmark | Grok 3 | Llama 3-8B |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 55.6% | 1.9% |
| LMArena Math | 1390 | 1151 |
| MATH Level 5 | 88.7% | 6.1% |
| Omni-MATH | 46.4% | — |
| FrontierMath (Feb 2025 set) | 3.8% | — |
| FrontierMath Tier 4 (v1) | 0% | — |
Knowledge Grok 3 leads
Grok 3: 46.0 (#76), Llama 3-8B: 7.8 (#303)
| Benchmark | Grok 3 | Llama 3-8B |
|---|---|---|
| GPQA Diamond | 75.8% | 26.1% |
| LMArena Expert | 1420 | 1113 |
| MMLU-Pro | 78.8% | — |
| Confabulations | 14.2% | — |
| Vectara Hallucination Rate | 5.8% | — |
| GPQA (HELM) | 65% | — |
| ARC (AI2) Challenge | — | 82.8% |
| MMLU | — | 68.8% |
| OpenBookQA | — | 82.6% |
| TriviaQA | — | 67.7% |
Multilingual Grok 3 leads
Grok 3: 52.5 (#81), Llama 3-8B: 31.0 (#256)
| Benchmark | Grok 3 | Llama 3-8B |
|---|---|---|
| LMArena Non-English | 1411 | 1098 |
| LMArena Chinese | 1448 | 1076 |
| LMArena French | 1460 | 1158 |
| LMArena German | 1431 | 1104 |
| LMArena Japanese | 1389 | 967 |
| LMArena Korean | 1374 | 1003 |
| LMArena Russian | 1416 | 1109 |
| LMArena Spanish | 1417 | 1172 |
Instruction Following Grok 3 leads
Grok 3: 75.2 (#69), Llama 3-8B: 58.7 (#255)
| Benchmark | Grok 3 | Llama 3-8B |
|---|---|---|
| LMArena Instruction Following | 1409 | 1127 |
| IFEval | 88.4% | — |
Long Context Grok 3 leads
Grok 3: 38.7 (#187), Llama 3-8B: 34.2 (#246)
| Benchmark | Grok 3 | Llama 3-8B |
|---|---|---|
| LMArena Longer Query | 1439 | 1128 |
| Fiction.LiveBench | 58.3% | — |
Writing & Preference Grok 3 leads
Grok 3: 56.0 (#136), Llama 3-8B: 37.7 (#251)
| Benchmark | Grok 3 | Llama 3-8B |
|---|---|---|
| LMArena Text | 1426 | 1166 |
| LMArena Creative Writing | 1414 | 1150 |
| LMArena Multi-Turn | 1424 | 1152 |
| Short-Story Creative Writing | 76.4% | — |
| EQ-Bench Creative Writing | 1186 | — |
| WildBench | 84.9% | — |
Frequently asked questions
Is Grok 3 better than Llama 3-8B?
Grok 3 is the stronger model overall, scoring 39.6 to 25.3 on the Noometry Index.
Is Grok 3 or Llama 3-8B better for coding?
Grok 3 scores higher on coding benchmarks: 41.5 versus 30.5 in the Noometry coding category.
How many benchmarks do Grok 3 and Llama 3-8B share?
21 benchmarks have published results for both models. Grok 3 has 40 scored results on Noometry and Llama 3-8B has 34.