GPT-5.4 Pro vs Grok 4.1
GPT-5.4 Pro 
Grok 4.1 Verdict
- GPT-5.4 Pro leads on quality: 64.3 vs 57.4.
- GPT-5.4 Pro is stronger in instruction following, knowledge, multimodal, reasoning.
- Grok 4.1 (thinking) is stronger in agents & tools, coding, human preference, maths.
- Grok 4.1 (thinking) is 43× cheaper ($1.56 vs $67.50 per 1M blended).
| Metric | GPT-5.4 Pro | Grok 4.1 (thinking) |
|---|---|---|
| BenchLeader Index | 64.3 | 57.4 |
| Instruction following score | 67.3 | – |
| Knowledge score | 73.6 | 57.2 |
| Multimodal score | 69.8 | 53.2 |
| Reasoning score | 75.3 | 58.9 |
| Agents & tools score | – | 78.3 |
| Coding score | – | 47.5 |
| Human preference score | – | 66.4 |
| Maths score | – | 48.3 |
| Blended price $/M | $67.50 | $1.56 |
| Output speed | 1 tok/s | – |
| Time to first answer | 6.3 s | – |
| Context window | 1.1M | 2M |
| Humanity's Last Exam | 44.3% | – |
| SimpleBench | 74.1% | 56.0% |
| ProofBench | – | 4.0% |
| Epoch Capabilities Index | 158.9 | – |
| LMArena Text | – | 1465 |
| LMArena Hard Prompts | – | 1477 |
| LMArena Coding | – | 1499 |
| LMArena WebDev | – | 1240 |
| LMArena Vision | – | 1199 |
| AIME (Vals) | – | 91.9% |
| LiveCodeBench | – | 80.6% |
| MMLU-Pro | – | 84.2% |
| LegalBench | – | 82.5% |
| CorpFin | – | 66.0% |
| TaxEval | – | 73.1% |
| MedQA | – | 92.1% |
| MGSM | – | 89.5% |
| SWE-bench (Vals) | – | 41.4% |
| GPQA Diamond (Vals) | – | 84.3% |
| AIME 2026 | – | 94.2% |
| HMMT February 2026 | – | 86.4% |
| MathArena Apex | – | 5.2% |
| MultiChallenge | 69.2% | – |
| VISTA | 53.9% | – |
| MultiNRC | 62.3% | – |
| TutorBench | 56.6% | – |
| BFCL Overall | – | 69.6% |
Data as of 2026-09-13. Best configuration of each model; every score links to its source on the model pages.
GPT-5.4 Pro vs Grok 4.1: questions
- Is GPT-5.4 Pro better than Grok 4.1?
- GPT-5.4 Pro leads on quality: 64.3 vs 57.4. The BenchLeader Index combines every independent quality benchmark; GPT-5.4 Pro is ahead overall as of 2026-09-13, but check the category scores for your use.
- Which is cheaper, GPT-5.4 Pro or Grok 4.1?
- Grok 4.1 is cheaper: $1.56 against $67.50 per million tokens, blended at three input tokens per output token.
- Which has the larger context window?
- Grok 4.1 accepts more context: 2M against 1.1M tokens.