GPT-5.5 vs GPT-5 Nano
As of Oct 14, 2026, GPT-5.5 leads GPT-5 Nano in 2 of 2 shared categories: Science and Abstraction (ARC).
GPT-5.5
It used to be. Was SOTA in General LLM.
GPT-5 Nano
#72 Best recorded rank: #72 in Abstraction (ARC), as of Oct 14, 2026.
| Category | GPT-5.5 | GPT-5 Nano |
|---|---|---|
| General LLM | #21 · Was SOTA · General LLM Margin 14.285714285714292 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Reasoning | #25 · #25 in Reasoning Margin 17.808219178082197 LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Aug 7, 2025 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | — |
| Science | #30 · #30 in Science Margin — Epoch AI benchmarking hub · Apr 23, 2026 | #89 · #89 in Science Margin — Epoch AI benchmarking hub · Aug 7, 2025 |
| Coding | #— · 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 | — |
| 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 | #— · Not enough data Margin — Epoch AI benchmarking hub · Aug 7, 2025 |
| Abstraction (ARC) | #7 · #7 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Apr 23, 2026 | #72 · #72 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Aug 7, 2025 |
GPT-5.5: $11.25 per 1M blended tokens.
GPT-5 Nano: $0.1375 per 1M blended tokens.
GPT-5.5: closed weights.
GPT-5 Nano: closed weights.
Science: As of Oct 14, 2026, GPT-5.5 leads GPT-5 Nano in Science at #30 against #89.
Abstraction (ARC): As of Oct 14, 2026, GPT-5.5 leads GPT-5 Nano in Abstraction (ARC) at #7 against #72.
GPT-5.5 or GPT-5 Nano?
As of Oct 14, 2026, GPT-5.5 leads GPT-5 Nano in 2 of 2 shared categories: Science and Abstraction (ARC).
GPT-5.5 or GPT-5 Nano for Science?
As of Oct 14, 2026, GPT-5.5 leads GPT-5 Nano in Science at #30 against #89.
GPT-5.5 or GPT-5 Nano for Abstraction (ARC)?
As of Oct 14, 2026, GPT-5.5 leads GPT-5 Nano in Abstraction (ARC) at #7 against #72.