Gemini 3.1 Pro Preview vs GPT-5.5
As of Oct 14, 2026, Gemini 3.1 Pro Preview leads GPT-5.5 in 5 of 8 shared categories: General LLM, Reasoning, Science, Long context, and Abstraction (ARC).
Gemini 3.1 Pro Preview
Yes. Yes on Math (best per dollar). Not the overall leader.
GPT-5.5
It used to be. Was SOTA in General LLM.
| Category | Gemini 3.1 Pro Preview | GPT-5.5 |
|---|---|---|
| General LLM | #15 · Was SOTA · General LLM Margin 10.204081632653057 LMArena leaderboard dataset · Oct 13, 2026 | #21 · Was SOTA · General LLM Margin 14.285714285714292 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #14 · Was SOTA · Reasoning Margin 10.273972602739732 LMArena leaderboard dataset · Oct 13, 2026 | #25 · #25 in Reasoning Margin 17.808219178082197 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #3 · Near-SOTA · Math Margin 4.444444444444443 Epoch AI benchmarking hub · Feb 19, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #7 · #7 in Science Margin — Epoch AI benchmarking hub · Feb 19, 2026 | #30 · #30 in Science Margin — Epoch AI benchmarking hub · Apr 23, 2026 |
| Coding | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Web dev | #58 · #58 in Coding › Web dev Margin 53.271028037383175 LMArena leaderboard dataset · Oct 13, 2026 | #44 · #44 in Coding › Web dev Margin 40.18691588785047 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #12 · Was SOTA · Long context Margin 8.163265306122454 LMArena leaderboard dataset · Oct 13, 2026 | #23 · Was SOTA · Long context Margin 15.646258503401356 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #25 · Was SOTA · Vision Margin 68.42105263157896 Epoch AI benchmarking hub · Feb 19, 2026 | #10 · Was SOTA · Vision Margin 28.94736842105263 Epoch AI benchmarking hub · Apr 23, 2026 |
| Factuality | #18 · #18 in Factuality Margin 14.179104477611943 LMArena leaderboard dataset · Oct 13, 2026 | #5 · Was SOTA · Factuality Margin 4.477611940298502 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #2 · #2 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Feb 19, 2026 | #7 · #7 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Apr 23, 2026 |
Gemini 3.1 Pro Preview: $4.5 per 1M blended tokens.
GPT-5.5: $11.25 per 1M blended tokens.
Gemini 3.1 Pro Preview: closed weights.
GPT-5.5: closed weights.
General LLM: As of Oct 14, 2026, Gemini 3.1 Pro Preview leads GPT-5.5 in General LLM at #15 against #21.
Reasoning: As of Oct 14, 2026, Gemini 3.1 Pro Preview leads GPT-5.5 in Reasoning at #14 against #25.
Science: As of Oct 14, 2026, Gemini 3.1 Pro Preview leads GPT-5.5 in Science at #7 against #30.
Coding › Web dev: As of Oct 14, 2026, GPT-5.5 leads Gemini 3.1 Pro Preview in Coding › Web dev at #44 against #58.
Long context: As of Oct 14, 2026, Gemini 3.1 Pro Preview leads GPT-5.5 in Long context at #12 against #23.
Vision: As of Oct 14, 2026, GPT-5.5 leads Gemini 3.1 Pro Preview in Vision at #10 against #25.
Factuality: As of Oct 14, 2026, GPT-5.5 leads Gemini 3.1 Pro Preview in Factuality at #5 against #18.
Abstraction (ARC): As of Oct 14, 2026, Gemini 3.1 Pro Preview leads GPT-5.5 in Abstraction (ARC) at #2 against #7.
Gemini 3.1 Pro Preview · GPT-5.5
Gemini 3.1 Pro Preview or GPT-5.5?
As of Oct 14, 2026, Gemini 3.1 Pro Preview leads GPT-5.5 in 5 of 8 shared categories: General LLM, Reasoning, Science, Long context, and Abstraction (ARC).
Gemini 3.1 Pro Preview or GPT-5.5 for General LLM?
As of Oct 14, 2026, Gemini 3.1 Pro Preview leads GPT-5.5 in General LLM at #15 against #21.
Gemini 3.1 Pro Preview or GPT-5.5 for Reasoning?
As of Oct 14, 2026, Gemini 3.1 Pro Preview leads GPT-5.5 in Reasoning at #14 against #25.
Gemini 3.1 Pro Preview or GPT-5.5 for Science?
As of Oct 14, 2026, Gemini 3.1 Pro Preview leads GPT-5.5 in Science at #7 against #30.