Model comparison
GPT-5.4 Pro vs Grok 4
GPT-5.4 Pro is the stronger model overall, scoring 58.8 to 47.8 on the Noometry Index.
Last verified . 9 shared benchmarks.
Summary
- They share 9 benchmarks with published results for both. GPT-5.4 Pro scores higher in 3 categories and Grok 4 in 1 category; 4 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where GPT-5.4 Pro leads 71.0 to 36.9.
- The biggest single-benchmark swing is ARC-AGI-2: 83.3% for GPT-5.4 Pro and 16% for Grok 4.
Side by side
| GPT-5.4 Pro | Grok 4 | |
|---|---|---|
| Provider | OpenAI | xAI |
| Noometry Index | 58.8 | 47.8 |
| Released | 2026-03-05 | 2025-07-09 |
| Weights | Proprietary | Proprietary |
| Context window | 1.05M | — |
| Max output | 128K | — |
| Input $ / M tokens | $30 | — |
| Output $ / M tokens | $180 | — |
| Results tracked | 16 | 48 |
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Category by category
Coding Grok 4 leads
GPT-5.4 Pro: 42.6 (#89), Grok 4: 49.9 (#44)
| Benchmark | GPT-5.4 Pro | Grok 4 |
|---|---|---|
| WeirdML | 57.4% | 45.7% |
| Aider Polyglot | — | 79.6% |
| LMArena Coding | — | 1408 |
Agentic & Tool Use Not comparable
GPT-5.4 Pro: —, Grok 4: 32.1 (#62)
| Benchmark | GPT-5.4 Pro | Grok 4 |
|---|---|---|
| Terminal-Bench | — | 27.2% |
| Berkeley Function Calling Leaderboard | — | 63% |
| GDPval | — | 21.1% |
| Cybench | — | 43% |
| DeepResearch Bench | — | 47.3% |
| BALROG | — | 43.6% |
| LMArena Search | — | 1142 |
| METR Time Horizons | — | 66.6% |
Reasoning GPT-5.4 Pro leads
GPT-5.4 Pro: 71.0 (#10), Grok 4: 36.9 (#59)
| Benchmark | GPT-5.4 Pro | Grok 4 |
|---|---|---|
| ARC-AGI-2 | 83.3% | 16% |
| SimpleBench | 74.1% | 60.5% |
| ARC-AGI-1 | 94.5% | 66.7% |
| Chess Puzzles | 58.6% | 28% |
| Epoch Capabilities Index | 159.12 | 146.46 |
| Kagi LLM Benchmark | — | 73.6% |
| CritPt | 30% | — |
| EnigmaEval | 23.8% | — |
| LMArena Hard Prompts | — | 1409 |
| ForecastBench | — | 60.9 |
Math GPT-5.4 Pro leads
GPT-5.4 Pro: 72.0 (#17), Grok 4: 46.5 (#58)
| Benchmark | GPT-5.4 Pro | Grok 4 |
|---|---|---|
| FrontierMath (Feb 2025 set) | 50% | 19.7% |
| FrontierMath Tier 4 (v1) | 37.5% | 2.1% |
| FrontierMath (Tiers 1-3) | 82.5% | — |
| FrontierMath Tier 4 | 58.5% | — |
| OTIS Mock AIME 2024-2025 | — | 84% |
| Omni-MATH | — | 60.3% |
| LMArena Math | — | 1422 |
Knowledge GPT-5.4 Pro leads
GPT-5.4 Pro: 68.3 (#6), Grok 4: 53.7 (#50)
| Benchmark | GPT-5.4 Pro | Grok 4 |
|---|---|---|
| GPQA Diamond | 94.6% | 87% |
| Humanity's Last Exam | 44.3% | — |
| SimpleQA Verified | 46.3% | — |
| MMLU-Pro | — | 85.1% |
| Confabulations | — | 12.4% |
| Vectara Hallucination Rate | 8.3% | — |
| GPQA (HELM) | — | 72.7% |
| LMArena Expert | — | 1417 |
Multimodal Not comparable
GPT-5.4 Pro: —, Grok 4: 33.1 (#89)
| Benchmark | GPT-5.4 Pro | Grok 4 |
|---|---|---|
| LMArena Vision | — | 1211 |
| GeoBench | — | 45% |
Multilingual Not comparable
GPT-5.4 Pro: —, Grok 4: 52.0 (#98)
| Benchmark | GPT-5.4 Pro | Grok 4 |
|---|---|---|
| LMArena Non-English | — | 1403 |
| LMArena Chinese | — | 1428 |
| LMArena French | — | 1418 |
| LMArena German | — | 1429 |
| LMArena Japanese | — | 1396 |
| LMArena Korean | — | 1376 |
| LMArena Russian | — | 1409 |
| LMArena Spanish | — | 1419 |
Instruction Following Not comparable
GPT-5.4 Pro: —, Grok 4: 79.4 (#4)
| Benchmark | GPT-5.4 Pro | Grok 4 |
|---|---|---|
| IFEval | — | 94.9% |
| LMArena Instruction Following | — | 1387 |
Long Context Not comparable
GPT-5.4 Pro: —, Grok 4: 63.1 (#4)
| Benchmark | GPT-5.4 Pro | Grok 4 |
|---|---|---|
| Fiction.LiveBench | — | 94.4% |
| LMArena Longer Query | — | 1409 |
Writing & Preference Not comparable
GPT-5.4 Pro: —, Grok 4: 58.7 (#111)
| Benchmark | GPT-5.4 Pro | Grok 4 |
|---|---|---|
| LMArena Text | — | 1412 |
| LMArena Creative Writing | — | 1397 |
| Short-Story Creative Writing | — | 76.9% |
| WildBench | — | 79.7% |
| LMArena Multi-Turn | — | 1416 |
Frequently asked questions
Is GPT-5.4 Pro better than Grok 4?
GPT-5.4 Pro is the stronger model overall, scoring 58.8 to 47.8 on the Noometry Index.
Is GPT-5.4 Pro or Grok 4 better for coding?
Grok 4 scores higher on coding benchmarks: 49.9 versus 42.6 in the Noometry coding category.
How many benchmarks do GPT-5.4 Pro and Grok 4 share?
9 benchmarks have published results for both models. GPT-5.4 Pro has 16 scored results on Noometry and Grok 4 has 48.