GPT-5.5 vs GPT-5.5 Instant
As of Oct 14, 2026, GPT-5.5 leads GPT-5.5 Instant in 5 of 5 shared categories: General LLM, Reasoning, Science, Long context, and Factuality.
GPT-5.5
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 | GPT-5.5 | GPT-5.5 Instant |
|---|---|---|
| General LLM | #21 · Was SOTA · General LLM Margin 14.285714285714292 LMArena leaderboard dataset · Oct 13, 2026 | #31 · #31 in General LLM Margin 21.088435374149654 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #25 · #25 in Reasoning Margin 17.808219178082197 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 | #30 · #30 in Science Margin — Epoch AI benchmarking hub · Apr 23, 2026 | #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 | #44 · #44 in Coding › Web dev Margin 40.18691588785047 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #23 · Was SOTA · Long context Margin 15.646258503401356 LMArena leaderboard dataset · Oct 13, 2026 | #39 · #39 in Long context Margin 26.530612244897952 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #10 · Was SOTA · Vision Margin 28.94736842105263 Epoch AI benchmarking hub · Apr 23, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #5 · Was SOTA · Factuality Margin 4.477611940298502 LMArena leaderboard dataset · Oct 13, 2026 | #64 · #64 in Factuality Margin 48.507462686567166 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #7 · #7 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Apr 23, 2026 | — |
GPT-5.5: $11.25 per 1M blended tokens.
GPT-5.5 Instant: price per 1M tokens is unset in the catalog.
GPT-5.5: closed weights.
GPT-5.5 Instant: closed weights.
General LLM: As of Oct 14, 2026, GPT-5.5 leads GPT-5.5 Instant in General LLM at #21 against #31.
Reasoning: As of Oct 14, 2026, GPT-5.5 leads GPT-5.5 Instant in Reasoning at #25 against #33.
Science: As of Oct 14, 2026, GPT-5.5 leads GPT-5.5 Instant in Science at #30 against #65.
Long context: As of Oct 14, 2026, GPT-5.5 leads GPT-5.5 Instant in Long context at #23 against #39.
Factuality: As of Oct 14, 2026, GPT-5.5 leads GPT-5.5 Instant in Factuality at #5 against #64.
GPT-5.5 or GPT-5.5 Instant?
As of Oct 14, 2026, GPT-5.5 leads GPT-5.5 Instant in 5 of 5 shared categories: General LLM, Reasoning, Science, Long context, and Factuality.
GPT-5.5 or GPT-5.5 Instant for General LLM?
As of Oct 14, 2026, GPT-5.5 leads GPT-5.5 Instant in General LLM at #21 against #31.
GPT-5.5 or GPT-5.5 Instant for Reasoning?
As of Oct 14, 2026, GPT-5.5 leads GPT-5.5 Instant in Reasoning at #25 against #33.
GPT-5.5 or GPT-5.5 Instant for Science?
As of Oct 14, 2026, GPT-5.5 leads GPT-5.5 Instant in Science at #30 against #65.