Claude Opus 5.5 vs GPT-5.2
As of Oct 14, 2026, Claude Opus 5.5 leads GPT-5.2 in 6 of 7 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, Factuality, and Abstraction (ARC).
Claude Opus 5.5
Yes. SOTA in co-SOTA in Reasoning, co-SOTA in Coding, co-SOTA in Coding › Agentic, Coding › Web dev, co-SOTA in Long context and co-SOTA in Factuality.
GPT-5.2
#14 Best current rank: #14 in Math, as of Oct 14, 2026.
| Category | Claude Opus 5.5 | GPT-5.2 |
|---|---|---|
| General LLM | #2 · Near-SOTA · General LLM Margin 1.3605442176870781 LMArena leaderboard dataset · Oct 13, 2026 | #74 · #74 in General LLM Margin 50.34013605442177 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #1 · Co-SOTA · Reasoning Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #70 · #70 in Reasoning Margin 48.63013698630137 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #14 · #14 in Math Margin 28.888888888888886 Epoch AI benchmarking hub · Dec 11, 2025 |
| Science | #31 · #31 in Science Margin — Epoch AI benchmarking hub · Sep 22, 2026 | #26 · #26 in Science Margin — Epoch AI benchmarking hub · Dec 11, 2025 |
| Coding | #1 · Co-SOTA · Coding Margin 0 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Dec 11, 2025 |
| Coding › Agentic | #1 · Co-SOTA · Coding › Agentic Margin 0 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #1 · SOTA · Coding › Web dev Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #67 · #67 in Coding › Web dev Margin 61.6822429906542 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #1 · Co-SOTA · Long context Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #80 · #80 in Long context Margin 54.42176870748299 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #4 · Near-SOTA · Vision Margin 13.15789473684211 Epoch AI benchmarking hub · Sep 22, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #1 · Co-SOTA · Factuality Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #65 · #65 in Factuality Margin 49.25373134328358 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 22, 2026 | #24 · #24 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Dec 11, 2025 |
Claude Opus 5.5: $8.000000000000002 per 1M blended tokens.
GPT-5.2: $4.8125 per 1M blended tokens.
Claude Opus 5.5: closed weights.
GPT-5.2: closed weights.
General LLM: As of Oct 14, 2026, Claude Opus 5.5 leads GPT-5.2 in General LLM at #2 against #74.
Reasoning: As of Oct 14, 2026, Claude Opus 5.5 leads GPT-5.2 in Reasoning at #1 against #70.
Science: As of Oct 14, 2026, GPT-5.2 leads Claude Opus 5.5 in Science at #26 against #31.
Coding › Web dev: As of Oct 14, 2026, Claude Opus 5.5 leads GPT-5.2 in Coding › Web dev at #1 against #67.
Long context: As of Oct 14, 2026, Claude Opus 5.5 leads GPT-5.2 in Long context at #1 against #80.
Factuality: As of Oct 14, 2026, Claude Opus 5.5 leads GPT-5.2 in Factuality at #1 against #65.
Abstraction (ARC): As of Oct 14, 2026, Claude Opus 5.5 leads GPT-5.2 in Abstraction (ARC) at #1 against #24.
Claude Opus 5.5 or GPT-5.2?
As of Oct 14, 2026, Claude Opus 5.5 leads GPT-5.2 in 6 of 7 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, Factuality, and Abstraction (ARC).
Claude Opus 5.5 or GPT-5.2 for General LLM?
As of Oct 14, 2026, Claude Opus 5.5 leads GPT-5.2 in General LLM at #2 against #74.
Claude Opus 5.5 or GPT-5.2 for Reasoning?
As of Oct 14, 2026, Claude Opus 5.5 leads GPT-5.2 in Reasoning at #1 against #70.
Claude Opus 5.5 or GPT-5.2 for Science?
As of Oct 14, 2026, GPT-5.2 leads Claude Opus 5.5 in Science at #26 against #31.