Model comparison
Claude 3 Opus vs Grok-2 (Dec 2024)
Grok-2 (Dec 2024) is the stronger model overall, scoring 33.7 to 29.5 on the Noometry Index.
Last verified . 32 shared benchmarks.
Summary
- They share 32 benchmarks with published results for both. Claude 3 Opus scores higher in 0 categories and Grok-2 (Dec 2024) in 8 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in math, where Grok-2 (Dec 2024) leads 20.8 to 14.8.
- The biggest single-benchmark swing is MATH Level 5: 37.5% for Claude 3 Opus and 63.5% for Grok-2 (Dec 2024).
Side by side
| Claude 3 Opus | Grok-2 (Dec 2024) | |
|---|---|---|
| Provider | Anthropic | xAI |
| Noometry Index | 29.5 | 33.7 |
| Released | 2024-02-29 | 2024-08-13 |
| Weights | Proprietary | Proprietary |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 46 | 34 |
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Category by category
Coding Too close to call
Claude 3 Opus: 32.9 (#267), Grok-2 (Dec 2024): 33.3 (#258)
| Benchmark | Claude 3 Opus | Grok-2 (Dec 2024) |
|---|---|---|
| WeirdML | 19.2% | 22.2% |
| LiveBench Coding | 38.6% | 46.4% |
| LMArena Coding | 1264 | 1287 |
| BigCodeBench Instruct | 45.5% | — |
| BigCodeBench Complete | 57.4% | — |
| HumanEval+ | 77.4% | — |
| MBPP+ | 73.3% | — |
Agentic & Tool Use Not comparable
Claude 3 Opus: 24.6 (#116), Grok-2 (Dec 2024): —
| Benchmark | Claude 3 Opus | Grok-2 (Dec 2024) |
|---|---|---|
| Cybench | 10% | — |
| METR Time Horizons | 29.5% | — |
Reasoning Grok-2 (Dec 2024) leads
Claude 3 Opus: 14.6 (#324), Grok-2 (Dec 2024): 16.9 (#299)
| Benchmark | Claude 3 Opus | Grok-2 (Dec 2024) |
|---|---|---|
| SimpleBench | 23.5% | 22.7% |
| LiveBench Reasoning | 40.6% | 54.8% |
| LMArena Hard Prompts | 1245 | 1272 |
| DTBench | 61.6% | 65.2% |
| LiveBench Data Analysis | 57.9% | 54.5% |
| Epoch Capabilities Index | 126.91 | 130.48 |
| LiveBench | 49.2% | 54.3% |
| Chess Puzzles | 5% | — |
| EnigmaEval | 0.8% | — |
| LMCA | 17% | — |
| ForecastBench | 58.4 | — |
| WinoGrande | 88.5% | — |
Math Grok-2 (Dec 2024) leads
Claude 3 Opus: 14.8 (#299), Grok-2 (Dec 2024): 20.8 (#284)
| Benchmark | Claude 3 Opus | Grok-2 (Dec 2024) |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 4.7% | 11.5% |
| LiveBench Math | 43.6% | 54.9% |
| LMArena Math | 1273 | 1283 |
| MATH Level 5 | 37.5% | 63.5% |
| FrontierMath (Feb 2025 set) | — | 0.7% |
Knowledge Grok-2 (Dec 2024) leads
Claude 3 Opus: 24.5 (#267), Grok-2 (Dec 2024): 29.8 (#233)
| Benchmark | Claude 3 Opus | Grok-2 (Dec 2024) |
|---|---|---|
| GPQA Diamond | 47.2% | 53.8% |
| Confabulations | 22.7% | 20.1% |
| LMArena Expert | 1223 | 1254 |
| SimpleQA Verified | 12.6% | — |
| MMLU | 84.6% | — |
Multimodal Not comparable
Claude 3 Opus: 27.1 (#116), Grok-2 (Dec 2024): —
| Benchmark | Claude 3 Opus | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Vision | 1023 | — |
Multilingual Grok-2 (Dec 2024) leads
Claude 3 Opus: 41.4 (#207), Grok-2 (Dec 2024): 43.1 (#188)
| Benchmark | Claude 3 Opus | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Non-English | 1258 | 1282 |
| LMArena Chinese | 1248 | 1289 |
| LMArena French | 1275 | 1318 |
| LMArena German | 1258 | 1287 |
| LMArena Japanese | 1204 | 1244 |
| LMArena Korean | 1187 | 1237 |
| LMArena Russian | 1280 | 1286 |
| LMArena Spanish | 1246 | 1281 |
Instruction Following Grok-2 (Dec 2024) leads
Claude 3 Opus: 64.1 (#228), Grok-2 (Dec 2024): 66.9 (#202)
| Benchmark | Claude 3 Opus | Grok-2 (Dec 2024) |
|---|---|---|
| LiveBench Instruction Following | 63.9% | 69.6% |
| LMArena Instruction Following | 1248 | 1270 |
Long Context Too close to call
Claude 3 Opus: 38.2 (#202), Grok-2 (Dec 2024): 38.8 (#190)
| Benchmark | Claude 3 Opus | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Longer Query | 1259 | 1276 |
Writing & Preference Grok-2 (Dec 2024) leads
Claude 3 Opus: 47.2 (#213), Grok-2 (Dec 2024): 48.6 (#198)
| Benchmark | Claude 3 Opus | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Text | 1262 | 1305 |
| LMArena Creative Writing | 1235 | 1284 |
| LMArena Multi-Turn | 1275 | 1290 |
| LiveBench Language | 50.4% | 45.6% |
| Short-Story Creative Writing | — | 63.6% |
Frequently asked questions
Is Claude 3 Opus better than Grok-2 (Dec 2024)?
Grok-2 (Dec 2024) is the stronger model overall, scoring 33.7 to 29.5 on the Noometry Index.
Is Claude 3 Opus or Grok-2 (Dec 2024) better for coding?
They score almost the same on coding (32.9 vs 33.3); test both on your own repository before choosing.
How many benchmarks do Claude 3 Opus and Grok-2 (Dec 2024) share?
32 benchmarks have published results for both models. Claude 3 Opus has 46 scored results on Noometry and Grok-2 (Dec 2024) has 34.