Claude Sonnet 4.5 vs GPT-5.6 Sol
As of Oct 14, 2026, Claude Sonnet 4.5 leads GPT-5.6 Sol in 0 of 7 shared categories.
Claude Sonnet 4.5
It used to be. Was SOTA in General LLM.
GPT-5.6 Sol
Close. Near-SOTA in Vision, rank #3.
| Category | Claude Sonnet 4.5 | GPT-5.6 Sol |
|---|---|---|
| General LLM | #49 · Was SOTA · General LLM Margin 33.33333333333333 LMArena leaderboard dataset · Oct 13, 2026 | #17 · #17 in General LLM Margin 11.564625850340136 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #40 · Was SOTA · Reasoning Margin 28.082191780821915 LMArena leaderboard dataset · Oct 13, 2026 | #12 · #12 in Reasoning Margin 8.904109589041099 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #25 · #25 in Math Margin 53.333333333333336 Epoch AI benchmarking hub · Sep 29, 2025 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #82 · #82 in Science Margin — Epoch AI benchmarking hub · Sep 29, 2025 | #13 · #13 in Science Margin — Epoch AI benchmarking hub · Jul 9, 2026 |
| Coding | #— · Not enough data Margin — Epoch AI benchmarking hub · Sep 29, 2025 | #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 | #78 · Was SOTA · Coding › Web dev Margin 71.96261682242991 LMArena leaderboard dataset · Oct 13, 2026 | #21 · Was SOTA · Coding › Web dev Margin 18.691588785046733 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #29 · Was SOTA · Long context Margin 19.72789115646259 LMArena leaderboard dataset · Oct 13, 2026 | #13 · #13 in Long context Margin 8.84353741496598 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | — | #3 · Near-SOTA · Vision Margin 10.526315789473685 Epoch AI benchmarking hub · Jul 9, 2026 |
| Factuality | #50 · #50 in Factuality Margin 38.059701492537314 LMArena leaderboard dataset · Oct 13, 2026 | #14 · #14 in Factuality Margin 11.194029850746276 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #66 · #66 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 29, 2025 | #3 · #3 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 9, 2026 |
Claude Sonnet 4.5: $6 per 1M blended tokens.
GPT-5.6 Sol: $8.000000000000002 per 1M blended tokens.
Claude Sonnet 4.5: closed weights.
GPT-5.6 Sol: closed weights.
General LLM: As of Oct 14, 2026, GPT-5.6 Sol leads Claude Sonnet 4.5 in General LLM at #17 against #49.
Reasoning: As of Oct 14, 2026, GPT-5.6 Sol leads Claude Sonnet 4.5 in Reasoning at #12 against #40.
Science: As of Oct 14, 2026, GPT-5.6 Sol leads Claude Sonnet 4.5 in Science at #13 against #82.
Coding › Web dev: As of Oct 14, 2026, GPT-5.6 Sol leads Claude Sonnet 4.5 in Coding › Web dev at #21 against #78.
Long context: As of Oct 14, 2026, GPT-5.6 Sol leads Claude Sonnet 4.5 in Long context at #13 against #29.
Factuality: As of Oct 14, 2026, GPT-5.6 Sol leads Claude Sonnet 4.5 in Factuality at #14 against #50.
Abstraction (ARC): As of Oct 14, 2026, GPT-5.6 Sol leads Claude Sonnet 4.5 in Abstraction (ARC) at #3 against #66.
Claude Sonnet 4.5 · GPT-5.6 Sol
Claude Sonnet 4.5 or GPT-5.6 Sol?
As of Oct 14, 2026, Claude Sonnet 4.5 leads GPT-5.6 Sol in 0 of 7 shared categories.
Claude Sonnet 4.5 or GPT-5.6 Sol for General LLM?
As of Oct 14, 2026, GPT-5.6 Sol leads Claude Sonnet 4.5 in General LLM at #17 against #49.
Claude Sonnet 4.5 or GPT-5.6 Sol for Reasoning?
As of Oct 14, 2026, GPT-5.6 Sol leads Claude Sonnet 4.5 in Reasoning at #12 against #40.
Claude Sonnet 4.5 or GPT-5.6 Sol for Science?
As of Oct 14, 2026, GPT-5.6 Sol leads Claude Sonnet 4.5 in Science at #13 against #82.