Claude Opus 4.6 vs GPT-5.1
As of Oct 14, 2026, Claude Opus 4.6 leads GPT-5.1 in 7 of 7 shared categories: General LLM, Reasoning, Math, Science, Coding › Web dev, Long context, and Factuality.
Claude Opus 4.6
Close. Near-SOTA in Reasoning, rank #2.
GPT-5.1
#18 Best current rank: #18 in Math, as of Oct 14, 2026.
| Category | Claude Opus 4.6 | GPT-5.1 |
|---|---|---|
| General LLM | #4 · Near-SOTA · General LLM Margin 2.7210884353741562 LMArena leaderboard dataset · Oct 13, 2026 | #47 · #47 in General LLM Margin 31.972789115646265 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #2 · Near-SOTA · Reasoning Margin 2.0547945205479436 LMArena leaderboard dataset · Oct 13, 2026 | #48 · #48 in Reasoning Margin 33.56164383561644 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #11 · #11 in Math Margin 22.22222222222223 Epoch AI benchmarking hub · Feb 5, 2026 | #18 · #18 in Math Margin 37.77777777777778 Epoch AI benchmarking hub · Nov 13, 2025 |
| Science | #32 · #32 in Science Margin — Epoch AI benchmarking hub · Feb 5, 2026 | #48 · #48 in Science Margin — Epoch AI benchmarking hub · Nov 13, 2025 |
| Coding | #— · Not enough data Margin — Epoch AI benchmarking hub · Feb 5, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Nov 13, 2025 |
| Coding › Web dev | #35 · Was SOTA · Coding › Web dev Margin 31.775700934579433 LMArena leaderboard dataset · Oct 13, 2026 | #75 · #75 in Coding › Web dev Margin 69.1588785046729 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #2 · Near-SOTA · Long context Margin 0.6802721088435391 LMArena leaderboard dataset · Oct 13, 2026 | #54 · #54 in Long context Margin 36.73469387755103 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 2.9850746268656536 LMArena leaderboard dataset · Oct 13, 2026 | #37 · #37 in Factuality Margin 28.358208955223887 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | — | #31 · #31 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Nov 13, 2025 |
Claude Opus 4.6: $10 per 1M blended tokens.
GPT-5.1: $3.4375000000000004 per 1M blended tokens.
Claude Opus 4.6: closed weights.
GPT-5.1: closed weights.
General LLM: As of Oct 14, 2026, Claude Opus 4.6 leads GPT-5.1 in General LLM at #4 against #47.
Reasoning: As of Oct 14, 2026, Claude Opus 4.6 leads GPT-5.1 in Reasoning at #2 against #48.
Math: As of Oct 14, 2026, Claude Opus 4.6 leads GPT-5.1 in Math at #11 against #18.
Science: As of Oct 14, 2026, Claude Opus 4.6 leads GPT-5.1 in Science at #32 against #48.
Coding › Web dev: As of Oct 14, 2026, Claude Opus 4.6 leads GPT-5.1 in Coding › Web dev at #35 against #75.
Long context: As of Oct 14, 2026, Claude Opus 4.6 leads GPT-5.1 in Long context at #2 against #54.
Factuality: As of Oct 14, 2026, Claude Opus 4.6 leads GPT-5.1 in Factuality at #3 against #37.
Claude Opus 4.6 or GPT-5.1?
As of Oct 14, 2026, Claude Opus 4.6 leads GPT-5.1 in 7 of 7 shared categories: General LLM, Reasoning, Math, Science, Coding › Web dev, Long context, and Factuality.
Claude Opus 4.6 or GPT-5.1 for General LLM?
As of Oct 14, 2026, Claude Opus 4.6 leads GPT-5.1 in General LLM at #4 against #47.
Claude Opus 4.6 or GPT-5.1 for Reasoning?
As of Oct 14, 2026, Claude Opus 4.6 leads GPT-5.1 in Reasoning at #2 against #48.
Claude Opus 4.6 or GPT-5.1 for Math?
As of Oct 14, 2026, Claude Opus 4.6 leads GPT-5.1 in Math at #11 against #18.