Claude Sonnet 4.5 vs GPT-5.4 Pro
As of Oct 14, 2026, Claude Sonnet 4.5 leads GPT-5.4 Pro in 0 of 3 shared categories.
Claude Sonnet 4.5
It used to be. Was SOTA in General LLM.
GPT-5.4 Pro
It used to be. Was SOTA in Math.
| Category | Claude Sonnet 4.5 | GPT-5.4 Pro |
|---|---|---|
| General LLM | #49 · Was SOTA · General LLM Margin 33.33333333333333 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Reasoning | #40 · Was SOTA · Reasoning Margin 28.082191780821915 LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Mar 5, 2026 |
| Math | #25 · #25 in Math Margin 53.333333333333336 Epoch AI benchmarking hub · Sep 29, 2025 | #6 · Was SOTA · Math Margin 11.111111111111114 Epoch AI benchmarking hub · Mar 5, 2026 |
| Science | #82 · #82 in Science Margin — Epoch AI benchmarking hub · Sep 29, 2025 | #6 · #6 in Science Margin — Epoch AI benchmarking hub · Mar 5, 2026 |
| Coding | #— · Not enough data Margin — Epoch AI benchmarking hub · Sep 29, 2025 | — |
| Coding › Web dev | #78 · Was SOTA · Coding › Web dev Margin 71.96261682242991 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #29 · Was SOTA · Long context Margin 19.72789115646259 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Factuality | #50 · #50 in Factuality Margin 38.059701492537314 LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Mar 5, 2026 |
| Abstraction (ARC) | #66 · #66 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 29, 2025 | #8 · #8 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Mar 5, 2026 |
Claude Sonnet 4.5: $6 per 1M blended tokens.
GPT-5.4 Pro: $67.5 per 1M blended tokens.
Claude Sonnet 4.5: closed weights.
GPT-5.4 Pro: closed weights.
Math: As of Oct 14, 2026, GPT-5.4 Pro leads Claude Sonnet 4.5 in Math at #6 against #25.
Science: As of Oct 14, 2026, GPT-5.4 Pro leads Claude Sonnet 4.5 in Science at #6 against #82.
Abstraction (ARC): As of Oct 14, 2026, GPT-5.4 Pro leads Claude Sonnet 4.5 in Abstraction (ARC) at #8 against #66.
Claude Sonnet 4.5 · GPT-5.4 Pro
Claude Sonnet 4.5 or GPT-5.4 Pro?
As of Oct 14, 2026, Claude Sonnet 4.5 leads GPT-5.4 Pro in 0 of 3 shared categories.
Claude Sonnet 4.5 or GPT-5.4 Pro for Math?
As of Oct 14, 2026, GPT-5.4 Pro leads Claude Sonnet 4.5 in Math at #6 against #25.
Claude Sonnet 4.5 or GPT-5.4 Pro for Science?
As of Oct 14, 2026, GPT-5.4 Pro leads Claude Sonnet 4.5 in Science at #6 against #82.
Claude Sonnet 4.5 or GPT-5.4 Pro for Abstraction (ARC)?
As of Oct 14, 2026, GPT-5.4 Pro leads Claude Sonnet 4.5 in Abstraction (ARC) at #8 against #66.