Claude Sonnet 4.5 vs GPT-5.4
As of Oct 14, 2026, Claude Sonnet 4.5 leads GPT-5.4 in 1 of 8 shared categories: Long context.
Claude Sonnet 4.5
It used to be. Was SOTA in General LLM.
GPT-5.4
It used to be. Was SOTA in General LLM.
| Category | Claude Sonnet 4.5 | GPT-5.4 |
|---|---|---|
| General LLM | #49 · Was SOTA · General LLM Margin 33.33333333333333 LMArena leaderboard dataset · Oct 13, 2026 | #28 · Was SOTA · General LLM Margin 19.04761904761905 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #40 · Was SOTA · Reasoning Margin 28.082191780821915 LMArena leaderboard dataset · Oct 13, 2026 | #29 · #29 in Reasoning Margin 20.54794520547945 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #25 · #25 in Math Margin 53.333333333333336 Epoch AI benchmarking hub · Sep 29, 2025 | #9 · #9 in Math Margin 17.777777777777757 Epoch AI benchmarking hub · Mar 5, 2026 |
| Science | #82 · #82 in Science Margin — Epoch AI benchmarking hub · Sep 29, 2025 | #16 · #16 in Science Margin — Epoch AI benchmarking hub · Mar 5, 2026 |
| Coding | #— · Not enough data Margin — Epoch AI benchmarking hub · Sep 29, 2025 | #— · Not enough data Margin — Epoch AI benchmarking hub · Mar 5, 2026 |
| Coding › Web dev | #78 · Was SOTA · Coding › Web dev Margin 71.96261682242991 LMArena leaderboard dataset · Oct 13, 2026 | #55 · #55 in Coding › Web dev Margin 50.467289719626166 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #29 · Was SOTA · Long context Margin 19.72789115646259 LMArena leaderboard dataset · Oct 13, 2026 | #34 · #34 in Long context Margin 23.12925170068027 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | — | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #50 · #50 in Factuality Margin 38.059701492537314 LMArena leaderboard dataset · Oct 13, 2026 | #6 · Was SOTA · Factuality Margin 5.22388059701494 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #66 · #66 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 29, 2025 | #10 · #10 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Mar 5, 2026 |
Claude Sonnet 4.5: $6 per 1M blended tokens.
GPT-5.4: $5.625 per 1M blended tokens.
Claude Sonnet 4.5: closed weights.
GPT-5.4: closed weights.
General LLM: As of Oct 14, 2026, GPT-5.4 leads Claude Sonnet 4.5 in General LLM at #28 against #49.
Reasoning: As of Oct 14, 2026, GPT-5.4 leads Claude Sonnet 4.5 in Reasoning at #29 against #40.
Math: As of Oct 14, 2026, GPT-5.4 leads Claude Sonnet 4.5 in Math at #9 against #25.
Science: As of Oct 14, 2026, GPT-5.4 leads Claude Sonnet 4.5 in Science at #16 against #82.
Coding › Web dev: As of Oct 14, 2026, GPT-5.4 leads Claude Sonnet 4.5 in Coding › Web dev at #55 against #78.
Long context: As of Oct 14, 2026, Claude Sonnet 4.5 leads GPT-5.4 in Long context at #29 against #34.
Factuality: As of Oct 14, 2026, GPT-5.4 leads Claude Sonnet 4.5 in Factuality at #6 against #50.
Abstraction (ARC): As of Oct 14, 2026, GPT-5.4 leads Claude Sonnet 4.5 in Abstraction (ARC) at #10 against #66.
Claude Sonnet 4.5 or GPT-5.4?
As of Oct 14, 2026, Claude Sonnet 4.5 leads GPT-5.4 in 1 of 8 shared categories: Long context.
Claude Sonnet 4.5 or GPT-5.4 for General LLM?
As of Oct 14, 2026, GPT-5.4 leads Claude Sonnet 4.5 in General LLM at #28 against #49.
Claude Sonnet 4.5 or GPT-5.4 for Reasoning?
As of Oct 14, 2026, GPT-5.4 leads Claude Sonnet 4.5 in Reasoning at #29 against #40.
Claude Sonnet 4.5 or GPT-5.4 for Math?
As of Oct 14, 2026, GPT-5.4 leads Claude Sonnet 4.5 in Math at #9 against #25.