GPT-5.4 vs Grok 4.3
As of Oct 15, 2026, GPT-5.4 leads Grok 4.3 in 6 of 6 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, and Factuality.
GPT-5.4
It used to be. Was SOTA in General LLM.
Grok 4.3
#32 Best current rank: #32 in Vision, as of Oct 15, 2026.
| Category | GPT-5.4 | Grok 4.3 |
|---|---|---|
| General LLM | #30 · Was SOTA · General LLM Margin 15.957446808510639 LMArena leaderboard dataset · Oct 13, 2026 | #85 · #85 in General LLM Margin 45.212765957446805 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #32 · #32 in Reasoning Margin 17.55319148936171 LMArena leaderboard dataset · Oct 13, 2026 | #96 · #96 in Reasoning Margin 51.59574468085106 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #9 · #9 in Math Margin 17.777777777777757 Epoch AI benchmarking hub · Mar 5, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #16 · #16 in Science Margin — Epoch AI benchmarking hub · Mar 5, 2026 | #41 · #41 in Science Margin — Epoch AI benchmarking hub · Apr 17, 2026 |
| Coding | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Web dev | #60 · #60 in Coding › Web dev Margin 47.2 LMArena leaderboard dataset · Oct 13, 2026 | #95 · #95 in Coding › Web dev Margin 75.2 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #40 · #40 in Long context Margin 21.276595744680847 LMArena leaderboard dataset · Oct 13, 2026 | #94 · #94 in Long context Margin 50 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 | #32 · #32 in Vision Margin 97.36842105263158 Epoch AI benchmarking hub · Apr 17, 2026 |
| Factuality | #6 · Was SOTA · Factuality Margin 4.0697674418604635 LMArena leaderboard dataset · Oct 13, 2026 | #111 · #111 in Factuality Margin 65.11627906976744 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #10 · #10 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Mar 5, 2026 | — |
GPT-5.4: $5.625 per 1M blended tokens.
Grok 4.3: $1.5625000000000002 per 1M blended tokens.
GPT-5.4: closed weights.
Grok 4.3: closed weights.
General LLM: As of Oct 15, 2026, GPT-5.4 leads Grok 4.3 in General LLM at #30 against #85.
Reasoning: As of Oct 15, 2026, GPT-5.4 leads Grok 4.3 in Reasoning at #32 against #96.
Science: As of Oct 15, 2026, GPT-5.4 leads Grok 4.3 in Science at #16 against #41.
Coding › Web dev: As of Oct 15, 2026, GPT-5.4 leads Grok 4.3 in Coding › Web dev at #60 against #95.
Long context: As of Oct 15, 2026, GPT-5.4 leads Grok 4.3 in Long context at #40 against #94.
Factuality: As of Oct 15, 2026, GPT-5.4 leads Grok 4.3 in Factuality at #6 against #111.
GPT-5.4 or Grok 4.3?
As of Oct 15, 2026, GPT-5.4 leads Grok 4.3 in 6 of 6 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, and Factuality.
GPT-5.4 or Grok 4.3 for General LLM?
As of Oct 15, 2026, GPT-5.4 leads Grok 4.3 in General LLM at #30 against #85.
GPT-5.4 or Grok 4.3 for Reasoning?
As of Oct 15, 2026, GPT-5.4 leads Grok 4.3 in Reasoning at #32 against #96.
GPT-5.4 or Grok 4.3 for Science?
As of Oct 15, 2026, GPT-5.4 leads Grok 4.3 in Science at #16 against #41.