GPT-5.5 vs GPT-6 Sol
As of Oct 14, 2026, GPT-5.5 leads GPT-6 Sol in 4 of 8 shared categories: General LLM, Reasoning, Long context, and Factuality.
GPT-5.5
It used to be. Was SOTA in General LLM.
GPT-6 Sol
#5 Best current rank: #5 in Coding, as of Oct 14, 2026.
| Category | GPT-5.5 | GPT-6 Sol |
|---|---|---|
| General LLM | #21 · Was SOTA · General LLM Margin 14.285714285714292 LMArena leaderboard dataset · Oct 13, 2026 | #43 · #43 in General LLM Margin 29.25170068027211 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #25 · #25 in Reasoning Margin 17.808219178082197 LMArena leaderboard dataset · Oct 13, 2026 | #39 · #39 in Reasoning Margin 27.397260273972606 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #30 · #30 in Science Margin — Epoch AI benchmarking hub · Apr 23, 2026 | #8 · #8 in Science Margin — Epoch AI benchmarking hub · Sep 22, 2026 |
| Coding | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #5 · #5 in Coding Margin 27.272727272727266 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | — | #5 · #5 in Coding › Agentic Margin 27.272727272727266 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Web dev | #44 · #44 in Coding › Web dev Margin 40.18691588785047 LMArena leaderboard dataset · Oct 13, 2026 | #7 · #7 in Coding › Web dev Margin 5.607476635514018 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #23 · Was SOTA · Long context Margin 15.646258503401356 LMArena leaderboard dataset · Oct 13, 2026 | #49 · #49 in Long context Margin 33.33333333333333 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #10 · Was SOTA · Vision Margin 28.94736842105263 Epoch AI benchmarking hub · Apr 23, 2026 | #9 · #9 in Vision Margin 26.315789473684205 Epoch AI benchmarking hub · Sep 22, 2026 |
| Factuality | #5 · Was SOTA · Factuality Margin 4.477611940298502 LMArena leaderboard dataset · Oct 13, 2026 | #70 · #70 in Factuality Margin 52.985074626865675 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #7 · #7 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Apr 23, 2026 | #6 · #6 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 22, 2026 |
GPT-5.5: $11.25 per 1M blended tokens.
GPT-6 Sol: $4.000000000000001 per 1M blended tokens.
GPT-5.5: closed weights.
GPT-6 Sol: closed weights.
General LLM: As of Oct 14, 2026, GPT-5.5 leads GPT-6 Sol in General LLM at #21 against #43.
Reasoning: As of Oct 14, 2026, GPT-5.5 leads GPT-6 Sol in Reasoning at #25 against #39.
Science: As of Oct 14, 2026, GPT-6 Sol leads GPT-5.5 in Science at #8 against #30.
Coding › Web dev: As of Oct 14, 2026, GPT-6 Sol leads GPT-5.5 in Coding › Web dev at #7 against #44.
Long context: As of Oct 14, 2026, GPT-5.5 leads GPT-6 Sol in Long context at #23 against #49.
Vision: As of Oct 14, 2026, GPT-6 Sol leads GPT-5.5 in Vision at #9 against #10.
Factuality: As of Oct 14, 2026, GPT-5.5 leads GPT-6 Sol in Factuality at #5 against #70.
Abstraction (ARC): As of Oct 14, 2026, GPT-6 Sol leads GPT-5.5 in Abstraction (ARC) at #6 against #7.
GPT-5.5 or GPT-6 Sol?
As of Oct 14, 2026, GPT-5.5 leads GPT-6 Sol in 4 of 8 shared categories: General LLM, Reasoning, Long context, and Factuality.
GPT-5.5 or GPT-6 Sol for General LLM?
As of Oct 14, 2026, GPT-5.5 leads GPT-6 Sol in General LLM at #21 against #43.
GPT-5.5 or GPT-6 Sol for Reasoning?
As of Oct 14, 2026, GPT-5.5 leads GPT-6 Sol in Reasoning at #25 against #39.
GPT-5.5 or GPT-6 Sol for Science?
As of Oct 14, 2026, GPT-6 Sol leads GPT-5.5 in Science at #8 against #30.