Gemini 3 Pro vs GPT-5.5 Instant
As of Oct 14, 2026, Gemini 3 Pro leads GPT-5.5 Instant in 4 of 4 shared categories: General LLM, Reasoning, Long context, and Factuality.
Gemini 3 Pro
It used to be. Was SOTA in General LLM.
GPT-5.5 Instant
#31 Best current rank: #31 in General LLM, as of Oct 14, 2026.
| Category | Gemini 3 Pro | GPT-5.5 Instant |
|---|---|---|
| General LLM | #16 · Was SOTA · General LLM Margin 10.884353741496597 LMArena leaderboard dataset · Oct 13, 2026 | #31 · #31 in General LLM Margin 21.088435374149654 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #22 · Was SOTA · Reasoning Margin 15.753424657534254 LMArena leaderboard dataset · Oct 13, 2026 | #33 · #33 in Reasoning Margin 23.28767123287672 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 | — | #65 · #65 in Science Margin — Epoch AI benchmarking hub · May 5, 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 | #59 · Was SOTA · Coding › Web dev Margin 54.205607476635514 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #21 · Was SOTA · Long context Margin 14.285714285714292 LMArena leaderboard dataset · Oct 13, 2026 | #39 · #39 in Long context Margin 26.530612244897952 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 | #10 · Was SOTA · Factuality Margin 8.208955223880594 LMArena leaderboard dataset · Oct 13, 2026 | #64 · #64 in Factuality Margin 48.507462686567166 LMArena leaderboard dataset · Oct 13, 2026 |
Gemini 3 Pro: price per 1M tokens is unset in the catalog.
GPT-5.5 Instant: price per 1M tokens is unset in the catalog.
Gemini 3 Pro: closed weights.
GPT-5.5 Instant: closed weights.
General LLM: As of Oct 14, 2026, Gemini 3 Pro leads GPT-5.5 Instant in General LLM at #16 against #31.
Reasoning: As of Oct 14, 2026, Gemini 3 Pro leads GPT-5.5 Instant in Reasoning at #22 against #33.
Long context: As of Oct 14, 2026, Gemini 3 Pro leads GPT-5.5 Instant in Long context at #21 against #39.
Factuality: As of Oct 14, 2026, Gemini 3 Pro leads GPT-5.5 Instant in Factuality at #10 against #64.
Gemini 3 Pro · GPT-5.5 Instant
Gemini 3 Pro or GPT-5.5 Instant?
As of Oct 14, 2026, Gemini 3 Pro leads GPT-5.5 Instant in 4 of 4 shared categories: General LLM, Reasoning, Long context, and Factuality.
Gemini 3 Pro or GPT-5.5 Instant for General LLM?
As of Oct 14, 2026, Gemini 3 Pro leads GPT-5.5 Instant in General LLM at #16 against #31.
Gemini 3 Pro or GPT-5.5 Instant for Reasoning?
As of Oct 14, 2026, Gemini 3 Pro leads GPT-5.5 Instant in Reasoning at #22 against #33.
Gemini 3 Pro or GPT-5.5 Instant for Long context?
As of Oct 14, 2026, Gemini 3 Pro leads GPT-5.5 Instant in Long context at #21 against #39.