# GPT-5.4 mini vs Grok 3

> GPT-5.4 mini is the stronger model overall, scoring 45.0 to 39.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gpt-5-4-mini-vs-grok-3
- Last updated: 2026-10-10
- Shared benchmarks: 28

## Summary

- They share 28 benchmarks with published results for both. GPT-5.4 mini scores higher in 6 categories and Grok 3 in 3 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where GPT-5.4 mini leads 30.4 to 13.7.
- The biggest single-benchmark swing is ARC-AGI-1: 63.7% for GPT-5.4 mini and 5.5% for Grok 3.

## Snapshot

| | GPT-5.4 mini | Grok 3 |
|---|---|---|
| Provider | OpenAI | xAI |
| Noometry Index | 45.0 | 39.9 |
| Rank | 76 | 157 |
| Context | 400K | — |
| Input $/M | $0.75 | — |
| Output $/M | $4.50 | — |
| Weights | Proprietary | Proprietary |

## Coding

- GPT-5.4 mini: 45.2 (#72)
- Grok 3: 41.9 (#115)

| Benchmark | GPT-5.4 mini | Grok 3 |
|---|---|---|
| WeirdML | 60.3% | 37.2% |
| LMArena Coding | 1438 | 1432 |
| FrontierCode | 27% | — |
| Aider Polyglot | — | 53.3% |
| LMArena WebDev | 1397 | — |
| SciCode | 49.9% | — |
| ALE-Bench | 1,189 | — |

## Agentic & Tool Use

- GPT-5.4 mini: 29.9 (#81)
- Grok 3: 30.5 (#76)

| Benchmark | GPT-5.4 mini | Grok 3 |
|---|---|---|
| DeepResearch Bench | 36.3% | — |
| BALROG | — | 29.5% |

## Reasoning

- GPT-5.4 mini: 30.4 (#85)
- Grok 3: 13.7 (#333)

| Benchmark | GPT-5.4 mini | Grok 3 |
|---|---|---|
| ARC-AGI-2 | 18.9% | 0% |
| Kagi LLM Benchmark | 37.9% | 61.3% |
| ARC-AGI-1 | 63.7% | 5.5% |
| LMArena Hard Prompts | 1424 | 1434 |
| Epoch Capabilities Index | 148.84 | 138.33 |
| SimpleBench | — | 36.1% |
| NYT Connections (extended) | 61.8% | — |
| CritPt | 10% | — |
| Chess Puzzles | 24% | — |
| Thematic Generalization | 61.7% | — |
| Mystery Game Puzzles | 11% | — |
| DTBench | 80% | — |
| LMCA | 40.8% | — |
| ForecastBench | 57 | — |

## Math

- GPT-5.4 mini: 45.5 (#75)
- Grok 3: 38.0 (#145)

| Benchmark | GPT-5.4 mini | Grok 3 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 88.9% | 55.6% |
| LMArena Math | 1419 | 1391 |
| FrontierMath (Feb 2025 set) | 28.3% | 3.8% |
| FrontierMath Tier 4 (v1) | 2.1% | 0% |
| FrontierMath (Tiers 1-3) | 51.2% | — |
| FrontierMath Tier 4 | 9.8% | — |
| ProofBench | 21% | — |
| Omni-MATH | — | 46.4% |
| MATH Level 5 | — | 88.7% |

## Knowledge

- GPT-5.4 mini: 51.5 (#67)
- Grok 3: 46.2 (#82)

| Benchmark | GPT-5.4 mini | Grok 3 |
|---|---|---|
| GPQA Diamond | 86.9% | 75.8% |
| Vectara Hallucination Rate | 5.5% | 5.8% |
| LMArena Expert | 1435 | 1421 |
| SimpleQA Verified | 29.4% | — |
| MMLU-Pro | — | 78.8% |
| Confabulations | — | 14.2% |
| GPQA (HELM) | — | 65% |

## Multimodal

- GPT-5.4 mini: 39.7 (#56)
- Grok 3: —

| Benchmark | GPT-5.4 mini | Grok 3 |
|---|---|---|
| LMArena Vision | 1245 | — |

## Multilingual

- GPT-5.4 mini: 51.9 (#96)
- Grok 3: 52.3 (#87)

| Benchmark | GPT-5.4 mini | Grok 3 |
|---|---|---|
| LMArena Non-English | 1405 | 1410 |
| LMArena Chinese | 1446 | 1448 |
| LMArena French | 1440 | 1460 |
| LMArena German | 1409 | 1431 |
| LMArena Japanese | 1374 | 1387 |
| LMArena Korean | 1368 | 1373 |
| LMArena Russian | 1417 | 1416 |
| LMArena Spanish | 1405 | 1417 |

## Instruction Following

- GPT-5.4 mini: 74.1 (#102)
- Grok 3: 75.0 (#73)

| Benchmark | GPT-5.4 mini | Grok 3 |
|---|---|---|
| LMArena Instruction Following | 1405 | 1409 |
| IFEval | — | 88.4% |

## Long Context

- GPT-5.4 mini: 43.0 (#112)
- Grok 3: 38.7 (#192)

| Benchmark | GPT-5.4 mini | Grok 3 |
|---|---|---|
| LMArena Longer Query | 1407 | 1439 |
| Fiction.LiveBench | — | 58.3% |

## Writing & Preference

- GPT-5.4 mini: 64.0 (#58)
- Grok 3: 55.8 (#141)

| Benchmark | GPT-5.4 mini | Grok 3 |
|---|---|---|
| LMArena Text | 1412 | 1426 |
| LMArena Creative Writing | 1370 | 1414 |
| EQ-Bench Creative Writing | 1665 | 1186 |
| LMArena Multi-Turn | 1429 | 1425 |
| Short-Story Creative Writing | — | 76.4% |
| WildBench | — | 84.9% |

## FAQ

### Is GPT-5.4 mini better than Grok 3?

GPT-5.4 mini is the stronger model overall, scoring 45.0 to 39.9 on the Noometry Index.

### Is GPT-5.4 mini or Grok 3 better for coding?

GPT-5.4 mini scores higher on coding benchmarks: 45.2 versus 41.9 in the Noometry coding category.

### How many benchmarks do GPT-5.4 mini and Grok 3 share?

28 benchmarks have published results for both models. GPT-5.4 mini has 46 scored results on Noometry and Grok 3 has 40.