Claude Opus 5 vs GPT-5.4
As of Oct 14, 2026, Claude Opus 5 leads GPT-5.4 in 7 of 7 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, Factuality, and Abstraction (ARC).
Claude Opus 5
Close. Near-SOTA in Factuality, rank #4.
GPT-5.4
It used to be. Was SOTA in General LLM.
| Category | Claude Opus 5 | GPT-5.4 |
|---|---|---|
| General LLM | #11 · Was SOTA · General LLM Margin 7.482993197278915 LMArena leaderboard dataset · Oct 13, 2026 | #28 · Was SOTA · General LLM Margin 19.04761904761905 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #9 · Was SOTA · Reasoning Margin 6.849315068493155 LMArena leaderboard dataset · Oct 13, 2026 | #29 · #29 in Reasoning Margin 20.54794520547945 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #9 · #9 in Math Margin 17.777777777777757 Epoch AI benchmarking hub · Mar 5, 2026 |
| Science | #12 · #12 in Science Margin — Epoch AI benchmarking hub · Jul 24, 2026 | #16 · #16 in Science Margin — Epoch AI benchmarking hub · Mar 5, 2026 |
| Coding | #4 · #4 in Coding Margin 22.727272727272734 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Mar 5, 2026 |
| Coding › Agentic | #4 · #4 in Coding › Agentic Margin 22.727272727272734 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #6 · Was SOTA · Coding › Web dev Margin 4.672897196261687 LMArena leaderboard dataset · Oct 13, 2026 | #55 · #55 in Coding › Web dev Margin 50.467289719626166 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #9 · Was SOTA · Long context Margin 6.122448979591837 LMArena leaderboard dataset · Oct 13, 2026 | #34 · #34 in Long context Margin 23.12925170068027 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #12 · #12 in Vision Margin 36.8421052631579 Epoch AI benchmarking hub · Jul 24, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #4 · Near-SOTA · Factuality Margin 3.731343283582092 LMArena leaderboard dataset · Oct 13, 2026 | #6 · Was SOTA · Factuality Margin 5.22388059701494 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #3 · #3 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 24, 2026 | #10 · #10 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Mar 5, 2026 |
Claude Opus 5: $10 per 1M blended tokens.
GPT-5.4: $5.625 per 1M blended tokens.
Claude Opus 5: closed weights.
GPT-5.4: closed weights.
General LLM: As of Oct 14, 2026, Claude Opus 5 leads GPT-5.4 in General LLM at #11 against #28.
Reasoning: As of Oct 14, 2026, Claude Opus 5 leads GPT-5.4 in Reasoning at #9 against #29.
Science: As of Oct 14, 2026, Claude Opus 5 leads GPT-5.4 in Science at #12 against #16.
Coding › Web dev: As of Oct 14, 2026, Claude Opus 5 leads GPT-5.4 in Coding › Web dev at #6 against #55.
Long context: As of Oct 14, 2026, Claude Opus 5 leads GPT-5.4 in Long context at #9 against #34.
Factuality: As of Oct 14, 2026, Claude Opus 5 leads GPT-5.4 in Factuality at #4 against #6.
Abstraction (ARC): As of Oct 14, 2026, Claude Opus 5 leads GPT-5.4 in Abstraction (ARC) at #3 against #10.
Claude Opus 5 or GPT-5.4?
As of Oct 14, 2026, Claude Opus 5 leads GPT-5.4 in 7 of 7 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, Factuality, and Abstraction (ARC).
Claude Opus 5 or GPT-5.4 for General LLM?
As of Oct 14, 2026, Claude Opus 5 leads GPT-5.4 in General LLM at #11 against #28.
Claude Opus 5 or GPT-5.4 for Reasoning?
As of Oct 14, 2026, Claude Opus 5 leads GPT-5.4 in Reasoning at #9 against #29.
Claude Opus 5 or GPT-5.4 for Science?
As of Oct 14, 2026, Claude Opus 5 leads GPT-5.4 in Science at #12 against #16.