# Gemini 3 Pro vs Grok 4.3

> Gemini 3 Pro is the stronger model overall, scoring 54.8 to 43.8 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-3-pro-vs-grok-4-3
- Last updated: 2026-10-10
- Shared benchmarks: 31

## Summary

- They share 31 benchmarks with published results for both. Gemini 3 Pro scores higher in 10 categories and Grok 4.3 in 0 categories; 10 gaps are clear of the uncertainty.
- The widest gap is in multimodal, where Gemini 3 Pro leads 57.6 to 31.6.
- The biggest single-benchmark swing is NYT Connections (extended): 94.4% for Gemini 3 Pro and 55.2% for Grok 4.3.

## Snapshot

| | Gemini 3 Pro | Grok 4.3 |
|---|---|---|
| Provider | Google | xAI |
| Noometry Index | 54.8 | 43.8 |
| Rank | 28 | 86 |
| Context | — | 1M |
| Input $/M | — | $1.25 |
| Output $/M | — | $2.50 |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini 3 Pro: 51.6 (#39)
- Grok 4.3: 41.6 (#121)

| Benchmark | Gemini 3 Pro | Grok 4.3 |
|---|---|---|
| LMArena WebDev | 1440 | 1357 |
| WeirdML | 69.9% | 49.9% |
| LMArena Coding | 1481 | 1415 |
| ALE-Bench | 1,177 | 944.17 |
| SWE-bench Verified | 72.9% | — |
| SWE-bench Verified (bash only) | 74.2% | — |
| SWE-bench Multilingual | 68.7% | — |
| SciCode | — | 47.3% |
| GSO | 18.6% | — |
| AlgoTune | 1.83 | — |

## Agentic & Tool Use

- Gemini 3 Pro: 40.6 (#23)
- Grok 4.3: 27.7 (#99)

| Benchmark | Gemini 3 Pro | Grok 4.3 |
|---|---|---|
| LMArena Search | 1207 | 1165 |
| Vending-Bench 2 | 5,478 | 35.26 |
| Terminal-Bench | 69.4% | — |
| Berkeley Function Calling Leaderboard | 72.5% | — |
| GDPval | 40.3% | — |
| Remote Labor Index | 1.3% | — |
| τ²-bench Airline | 80.5% | — |
| τ²-bench Banking | 18% | — |
| τ²-bench Retail | 75.9% | — |
| τ²-bench Telecom | 91% | — |
| DeepResearch Bench | 46.3% | — |
| BALROG | 58.1% | — |
| GDP.pdf | — | 8% |
| METR Time Horizons | 71% | — |

## Reasoning

- Gemini 3 Pro: 52.5 (#31)
- Grok 4.3: 35.9 (#68)

| Benchmark | Gemini 3 Pro | Grok 4.3 |
|---|---|---|
| NYT Connections (extended) | 94.4% | 55.2% |
| CritPt | 6.9% | 8% |
| Chess Puzzles | 31% | 25% |
| LMArena Hard Prompts | 1480 | 1396 |
| Epoch Capabilities Index | 152.92 | 149.16 |
| ForecastBench | 61.2 | 60.3 |
| ARC-AGI-2 | 31.1% | — |
| SimpleBench | 76.4% | — |
| Kagi LLM Benchmark | 80.1% | — |
| ARC-AGI-1 | 75% | — |
| EnigmaEval | 18.2% | — |
| DTBench | — | 90.7% |
| LMCA | — | 38.3% |

## Math

- Gemini 3 Pro: 49.9 (#59)
- Grok 4.3: 46.0 (#74)

| Benchmark | Gemini 3 Pro | Grok 4.3 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 91.4% | 93.3% |
| ProofBench | 20% | 11% |
| LMArena Math | 1476 | 1388 |
| FrontierMath (Tiers 1-3) | — | 42.8% |
| FrontierMath Tier 4 | — | 14.6% |
| MathArena Final-Answer Competitions | 67% | — |
| Omni-MATH | 55.5% | — |
| FrontierMath (Feb 2025 set) | 37.6% | — |
| FrontierMath Tier 4 (v1) | 18.8% | — |

## Knowledge

- Gemini 3 Pro: 64.4 (#16)
- Grok 4.3: 52.5 (#62)

| Benchmark | Gemini 3 Pro | Grok 4.3 |
|---|---|---|
| GPQA Diamond | 92.6% | 88.8% |
| LMArena Expert | 1475 | 1385 |
| Humanity's Last Exam | 37.5% | — |
| SimpleQA Verified | — | 33.2% |
| MMLU-Pro | 90.3% | — |
| Vectara Hallucination Rate | 13.6% | — |
| GPQA (HELM) | 80.3% | — |

## Multimodal

- Gemini 3 Pro: 57.6 (#2)
- Grok 4.3: 31.6 (#104)

| Benchmark | Gemini 3 Pro | Grok 4.3 |
|---|---|---|
| LMArena Vision | 1305 | 1229 |
| GeoBench | 84% | — |
| VPCT | 91% | — |
| Blueprint-Bench 2 | — | 0% |
| LMArena Document | 1434 | — |

## Multilingual

- Gemini 3 Pro: 56.9 (#16)
- Grok 4.3: 50.5 (#120)

| Benchmark | Gemini 3 Pro | Grok 4.3 |
|---|---|---|
| LMArena Non-English | 1474 | 1385 |
| LMArena Chinese | 1523 | 1422 |
| LMArena French | 1492 | 1412 |
| LMArena German | 1515 | 1395 |
| LMArena Japanese | 1510 | 1379 |
| LMArena Korean | 1448 | 1356 |
| LMArena Russian | 1493 | 1399 |
| LMArena Spanish | 1470 | 1398 |

## Instruction Following

- Gemini 3 Pro: 76.3 (#45)
- Grok 4.3: 72.1 (#140)

| Benchmark | Gemini 3 Pro | Grok 4.3 |
|---|---|---|
| LMArena Instruction Following | 1458 | 1366 |
| IFEval | 87.7% | — |

## Long Context

- Gemini 3 Pro: 44.0 (#79)
- Grok 4.3: 42.5 (#123)

| Benchmark | Gemini 3 Pro | Grok 4.3 |
|---|---|---|
| LMArena Longer Query | 1471 | 1393 |
| CL-bench | 15.8% | — |

## Writing & Preference

- Gemini 3 Pro: 66.4 (#35)
- Grok 4.3: 58.5 (#118)

| Benchmark | Gemini 3 Pro | Grok 4.3 |
|---|---|---|
| LMArena Text | 1479 | 1397 |
| LMArena Creative Writing | 1482 | 1380 |
| LMArena Multi-Turn | 1484 | 1406 |
| EQ-Bench Creative Writing | 1525 | — |
| WildBench | 85.9% | — |
| EQ-Bench 4 | — | 1075 |

## FAQ

### Is Gemini 3 Pro better than Grok 4.3?

Gemini 3 Pro is the stronger model overall, scoring 54.8 to 43.8 on the Noometry Index.

### Is Gemini 3 Pro or Grok 4.3 better for coding?

Gemini 3 Pro scores higher on coding benchmarks: 51.6 versus 41.6 in the Noometry coding category.

### How many benchmarks do Gemini 3 Pro and Grok 4.3 share?

31 benchmarks have published results for both models. Gemini 3 Pro has 67 scored results on Noometry and Grok 4.3 has 40.