# GPT-5 vs Grok-2 (Dec 2024)

> GPT-5 is the stronger model overall, scoring 50.9 to 33.7 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gpt-5-vs-grok-2
- Last updated: 2026-10-10
- Shared benchmarks: 27

## Summary

- They share 27 benchmarks with published results for both. GPT-5 scores higher in 8 categories and Grok-2 (Dec 2024) in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where GPT-5 leads 55.0 to 20.8.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 91.4% for GPT-5 and 11.5% for Grok-2 (Dec 2024).

## Snapshot

| | GPT-5 | Grok-2 (Dec 2024) |
|---|---|---|
| Provider | OpenAI | xAI |
| Noometry Index | 50.9 | 33.7 |
| Rank | 45 | 239 |
| Context | 400K | — |
| Input $/M | $1.25 | — |
| Output $/M | $10 | — |
| Weights | Proprietary | Proprietary |

## Coding

- GPT-5: 50.3 (#47)
- Grok-2 (Dec 2024): 33.3 (#258)

| Benchmark | GPT-5 | Grok-2 (Dec 2024) |
|---|---|---|
| WeirdML | 60.7% | 22.2% |
| LMArena Coding | 1436 | 1287 |
| SWE-bench Verified | 73.6% | — |
| SWE-bench Verified (bash only) | 65% | — |
| Aider Polyglot | 88% | — |
| LMArena WebDev | 1418 | — |
| SciCode | 42.9% | — |
| GSO | 6.9% | — |
| LiveBench Coding | — | 46.4% |
| ALE-Bench | 1,162 | — |
| AlgoTune | 1.67 | — |

## Agentic & Tool Use

- GPT-5: 33.1 (#56)
- Grok-2 (Dec 2024): —

| Benchmark | GPT-5 | Grok-2 (Dec 2024) |
|---|---|---|
| Terminal-Bench | 49.6% | — |
| GDPval | 34.8% | — |
| Remote Labor Index | 1.7% | — |
| DeepResearch Bench | 49.6% | — |
| BALROG | 32.8% | — |
| LMArena Search | 1133 | — |
| METR Time Horizons | 69.6% | — |

## Reasoning

- GPT-5: 38.3 (#64)
- Grok-2 (Dec 2024): 16.9 (#299)

| Benchmark | GPT-5 | Grok-2 (Dec 2024) |
|---|---|---|
| SimpleBench | 56.7% | 22.7% |
| LMArena Hard Prompts | 1416 | 1272 |
| DTBench | 90.7% | 65.2% |
| Epoch Capabilities Index | 150 | 130.48 |
| ARC-AGI-2 | 9.9% | — |
| Kagi LLM Benchmark | 72.7% | — |
| ARC-AGI-1 | 65.7% | — |
| CritPt | 12.6% | — |
| Chess Puzzles | 37% | — |
| EnigmaEval | 10.5% | — |
| EBR-Bench | 12.7% | — |
| LiveBench Reasoning | — | 54.8% |
| Mystery Game Puzzles | 23% | — |
| LiveBench Data Analysis | — | 54.5% |
| LMCA | 40% | — |
| ForecastBench | 61.4 | — |
| LiveBench | — | 54.3% |

## Math

- GPT-5: 55.0 (#44)
- Grok-2 (Dec 2024): 20.8 (#284)

| Benchmark | GPT-5 | Grok-2 (Dec 2024) |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 91.4% | 11.5% |
| LMArena Math | 1407 | 1283 |
| MATH Level 5 | 98.1% | 63.5% |
| FrontierMath (Feb 2025 set) | 32.4% | 0.7% |
| FrontierMath (Tiers 1-3) | 55.4% | — |
| FrontierMath Tier 4 | 22% | — |
| ProofBench | 18% | — |
| Omni-MATH | 64.7% | — |
| LiveBench Math | — | 54.9% |
| FrontierMath Tier 4 (v1) | 12.5% | — |

## Knowledge

- GPT-5: 56.6 (#43)
- Grok-2 (Dec 2024): 29.8 (#233)

| Benchmark | GPT-5 | Grok-2 (Dec 2024) |
|---|---|---|
| GPQA Diamond | 86.2% | 53.8% |
| Confabulations | 10.3% | 20.1% |
| LMArena Expert | 1419 | 1254 |
| Humanity's Last Exam | 25.3% | — |
| SimpleQA Verified | 50.1% | — |
| MMLU-Pro | 86.3% | — |
| Vectara Hallucination Rate | 14.7% | — |
| GPQA (HELM) | 79.2% | — |

## Multimodal

- GPT-5: 46.8 (#13)
- Grok-2 (Dec 2024): —

| Benchmark | GPT-5 | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Vision | 1232 | — |
| GeoBench | 81% | — |
| VPCT | 66% | — |

## Multilingual

- GPT-5: 51.4 (#110)
- Grok-2 (Dec 2024): 43.1 (#188)

| Benchmark | GPT-5 | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Non-English | 1397 | 1282 |
| LMArena Chinese | 1422 | 1289 |
| LMArena French | 1410 | 1318 |
| LMArena German | 1416 | 1287 |
| LMArena Japanese | 1409 | 1244 |
| LMArena Korean | 1360 | 1237 |
| LMArena Russian | 1406 | 1286 |
| LMArena Spanish | 1399 | 1281 |

## Instruction Following

- GPT-5: 73.8 (#113)
- Grok-2 (Dec 2024): 66.9 (#202)

| Benchmark | GPT-5 | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Instruction Following | 1388 | 1270 |
| LiveBench Instruction Following | — | 69.6% |
| IFEval | 87.5% | — |

## Long Context

- GPT-5: 69.5 (#2)
- Grok-2 (Dec 2024): 38.8 (#190)

| Benchmark | GPT-5 | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Longer Query | 1399 | 1276 |
| Fiction.LiveBench | 97.2% | — |

## Writing & Preference

- GPT-5: 63.4 (#65)
- Grok-2 (Dec 2024): 48.6 (#198)

| Benchmark | GPT-5 | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Text | 1406 | 1305 |
| LMArena Creative Writing | 1365 | 1284 |
| Short-Story Creative Writing | 86% | 63.6% |
| LMArena Multi-Turn | 1426 | 1290 |
| EQ-Bench Creative Writing | 1627 | — |
| WildBench | 85.7% | — |
| LiveBench Language | — | 45.6% |

## FAQ

### Is GPT-5 better than Grok-2 (Dec 2024)?

GPT-5 is the stronger model overall, scoring 50.9 to 33.7 on the Noometry Index.

### Is GPT-5 or Grok-2 (Dec 2024) better for coding?

GPT-5 scores higher on coding benchmarks: 50.3 versus 33.3 in the Noometry coding category.

### How many benchmarks do GPT-5 and Grok-2 (Dec 2024) share?

27 benchmarks have published results for both models. GPT-5 has 69 scored results on Noometry and Grok-2 (Dec 2024) has 34.