Claude Opus 4.6 vs GPT-5.4
As of Oct 15, 2026, Claude Opus 4.6 leads GPT-5.4 in 5 of 7 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Opus 4.6
Close. Near-SOTA in Reasoning, rank #2.
GPT-5.4
It used to be. Was SOTA in General LLM.
| Category | Claude Opus 4.6 | GPT-5.4 |
|---|---|---|
| General LLM | #4 · Near-SOTA · General LLM Margin 2.1276595744680833 LMArena leaderboard dataset · Oct 13, 2026 | #30 · Was SOTA · General LLM Margin 15.957446808510639 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #2 · Near-SOTA · Reasoning Margin 1.5957446808510696 LMArena leaderboard dataset · Oct 13, 2026 | #32 · #32 in Reasoning Margin 17.55319148936171 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #11 · #11 in Math Margin 22.22222222222223 Epoch AI benchmarking hub · Feb 5, 2026 | #9 · #9 in Math Margin 17.777777777777757 Epoch AI benchmarking hub · Mar 5, 2026 |
| Science | #32 · #32 in Science Margin — Epoch AI benchmarking hub · Feb 5, 2026 | #16 · #16 in Science Margin — Epoch AI benchmarking hub · Mar 5, 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 | #37 · Was SOTA · Coding › Web dev Margin 28.799999999999997 LMArena leaderboard dataset · Oct 13, 2026 | #60 · #60 in Coding › Web dev Margin 47.2 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #2 · Near-SOTA · Long context Margin 0.5319148936170421 LMArena leaderboard dataset · Oct 13, 2026 | #40 · #40 in Long context Margin 21.276595744680847 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #3 · Near-SOTA · Factuality Margin 2.3255813953488342 LMArena leaderboard dataset · Oct 13, 2026 | #6 · Was SOTA · Factuality Margin 4.0697674418604635 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | — | #10 · #10 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Mar 5, 2026 |
Claude Opus 4.6: $10 per 1M blended tokens.
GPT-5.4: $5.625 per 1M blended tokens.
Claude Opus 4.6: closed weights.
GPT-5.4: closed weights.
General LLM: As of Oct 15, 2026, Claude Opus 4.6 leads GPT-5.4 in General LLM at #4 against #30.
Reasoning: As of Oct 15, 2026, Claude Opus 4.6 leads GPT-5.4 in Reasoning at #2 against #32.
Math: As of Oct 15, 2026, GPT-5.4 leads Claude Opus 4.6 in Math at #9 against #11.
Science: As of Oct 15, 2026, GPT-5.4 leads Claude Opus 4.6 in Science at #16 against #32.
Coding › Web dev: As of Oct 15, 2026, Claude Opus 4.6 leads GPT-5.4 in Coding › Web dev at #37 against #60.
Long context: As of Oct 15, 2026, Claude Opus 4.6 leads GPT-5.4 in Long context at #2 against #40.
Factuality: As of Oct 15, 2026, Claude Opus 4.6 leads GPT-5.4 in Factuality at #3 against #6.
Claude Opus 4.6 or GPT-5.4?
As of Oct 15, 2026, Claude Opus 4.6 leads GPT-5.4 in 5 of 7 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Opus 4.6 or GPT-5.4 for General LLM?
As of Oct 15, 2026, Claude Opus 4.6 leads GPT-5.4 in General LLM at #4 against #30.
Claude Opus 4.6 or GPT-5.4 for Reasoning?
As of Oct 15, 2026, Claude Opus 4.6 leads GPT-5.4 in Reasoning at #2 against #32.
Claude Opus 4.6 or GPT-5.4 for Math?
As of Oct 15, 2026, GPT-5.4 leads Claude Opus 4.6 in Math at #9 against #11.