Claude Opus 4.6 vs GPT-5.6 Sol
As of Oct 14, 2026, Claude Opus 4.6 leads GPT-5.6 Sol in 4 of 6 shared categories: General LLM, Reasoning, Long context, and Factuality.
Claude Opus 4.6
Close. Near-SOTA in Reasoning, rank #2.
GPT-5.6 Sol
Close. Near-SOTA in Vision, rank #3.
| Category | Claude Opus 4.6 | GPT-5.6 Sol |
|---|---|---|
| General LLM | #4 · Near-SOTA · General LLM Margin 2.7210884353741562 LMArena leaderboard dataset · Oct 13, 2026 | #17 · #17 in General LLM Margin 11.564625850340136 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #2 · Near-SOTA · Reasoning Margin 2.0547945205479436 LMArena leaderboard dataset · Oct 13, 2026 | #12 · #12 in Reasoning Margin 8.904109589041099 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #11 · #11 in Math Margin 22.22222222222223 Epoch AI benchmarking hub · Feb 5, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #32 · #32 in Science Margin — Epoch AI benchmarking hub · Feb 5, 2026 | #13 · #13 in Science Margin — Epoch AI benchmarking hub · Jul 9, 2026 |
| Coding | #— · Not enough data Margin — Epoch AI benchmarking hub · Feb 5, 2026 | #9 · #9 in Coding Margin 45.45454545454545 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | — | #9 · #9 in Coding › Agentic Margin 45.45454545454545 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Web dev | #35 · Was SOTA · Coding › Web dev Margin 31.775700934579433 LMArena leaderboard dataset · Oct 13, 2026 | #21 · Was SOTA · Coding › Web dev Margin 18.691588785046733 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #2 · Near-SOTA · Long context Margin 0.6802721088435391 LMArena leaderboard dataset · Oct 13, 2026 | #13 · #13 in Long context Margin 8.84353741496598 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 | #3 · Near-SOTA · Vision Margin 10.526315789473685 Epoch AI benchmarking hub · Jul 9, 2026 |
| Factuality | #3 · Near-SOTA · Factuality Margin 2.9850746268656536 LMArena leaderboard dataset · Oct 13, 2026 | #14 · #14 in Factuality Margin 11.194029850746276 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | — | #3 · #3 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 9, 2026 |
Claude Opus 4.6: $10 per 1M blended tokens.
GPT-5.6 Sol: $8.000000000000002 per 1M blended tokens.
Claude Opus 4.6: closed weights.
GPT-5.6 Sol: closed weights.
General LLM: As of Oct 14, 2026, Claude Opus 4.6 leads GPT-5.6 Sol in General LLM at #4 against #17.
Reasoning: As of Oct 14, 2026, Claude Opus 4.6 leads GPT-5.6 Sol in Reasoning at #2 against #12.
Science: As of Oct 14, 2026, GPT-5.6 Sol leads Claude Opus 4.6 in Science at #13 against #32.
Coding › Web dev: As of Oct 14, 2026, GPT-5.6 Sol leads Claude Opus 4.6 in Coding › Web dev at #21 against #35.
Long context: As of Oct 14, 2026, Claude Opus 4.6 leads GPT-5.6 Sol in Long context at #2 against #13.
Factuality: As of Oct 14, 2026, Claude Opus 4.6 leads GPT-5.6 Sol in Factuality at #3 against #14.
Claude Opus 4.6 or GPT-5.6 Sol?
As of Oct 14, 2026, Claude Opus 4.6 leads GPT-5.6 Sol in 4 of 6 shared categories: General LLM, Reasoning, Long context, and Factuality.
Claude Opus 4.6 or GPT-5.6 Sol for General LLM?
As of Oct 14, 2026, Claude Opus 4.6 leads GPT-5.6 Sol in General LLM at #4 against #17.
Claude Opus 4.6 or GPT-5.6 Sol for Reasoning?
As of Oct 14, 2026, Claude Opus 4.6 leads GPT-5.6 Sol in Reasoning at #2 against #12.
Claude Opus 4.6 or GPT-5.6 Sol for Science?
As of Oct 14, 2026, GPT-5.6 Sol leads Claude Opus 4.6 in Science at #13 against #32.