GPT-5.4 Nano vs GPT-5.5
As of Oct 15, 2026, GPT-5.4 Nano leads GPT-5.5 in 0 of 6 shared categories.
GPT-5.4 Nano
#43 Best recorded rank: #43 in Abstraction (ARC), as of Oct 15, 2026.
GPT-5.5
Close. Near-SOTA in Factuality, rank #5.
| Category | GPT-5.4 Nano | GPT-5.5 |
|---|---|---|
| General LLM | #149 · #149 in General LLM Margin 79.25531914893617 LMArena leaderboard dataset · Oct 13, 2026 | #22 · Was SOTA · General LLM Margin 11.702127659574472 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #143 · #143 in Reasoning Margin 76.59574468085106 LMArena leaderboard dataset · Oct 13, 2026 | #26 · #26 in Reasoning Margin 14.36170212765957 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 | #73 · #73 in Science Margin — Epoch AI benchmarking hub · Mar 17, 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 | — | #48 · #48 in Coding › Web dev Margin 37.6 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #157 · #157 in Long context Margin 83.51063829787233 LMArena leaderboard dataset · Oct 13, 2026 | #26 · Was SOTA · Long context Margin 13.829787234042556 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 | #10 · Was SOTA · Vision Margin 28.94736842105263 Epoch AI benchmarking hub · Apr 23, 2026 |
| Factuality | #126 · #126 in Factuality Margin 73.83720930232558 LMArena leaderboard dataset · Oct 13, 2026 | #5 · Near-SOTA · Factuality Margin 3.4883720930232442 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #43 · #43 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Mar 17, 2026 | #7 · #7 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Apr 23, 2026 |
GPT-5.4 Nano: $0.4625 per 1M blended tokens.
GPT-5.5: $11.25 per 1M blended tokens.
GPT-5.4 Nano: closed weights.
GPT-5.5: closed weights.
General LLM: As of Oct 15, 2026, GPT-5.5 leads GPT-5.4 Nano in General LLM at #22 against #149.
Reasoning: As of Oct 15, 2026, GPT-5.5 leads GPT-5.4 Nano in Reasoning at #26 against #143.
Science: As of Oct 15, 2026, GPT-5.5 leads GPT-5.4 Nano in Science at #30 against #73.
Long context: As of Oct 15, 2026, GPT-5.5 leads GPT-5.4 Nano in Long context at #26 against #157.
Factuality: As of Oct 15, 2026, GPT-5.5 leads GPT-5.4 Nano in Factuality at #5 against #126.
Abstraction (ARC): As of Oct 15, 2026, GPT-5.5 leads GPT-5.4 Nano in Abstraction (ARC) at #7 against #43.
GPT-5.4 Nano or GPT-5.5?
As of Oct 15, 2026, GPT-5.4 Nano leads GPT-5.5 in 0 of 6 shared categories.
GPT-5.4 Nano or GPT-5.5 for General LLM?
As of Oct 15, 2026, GPT-5.5 leads GPT-5.4 Nano in General LLM at #22 against #149.
GPT-5.4 Nano or GPT-5.5 for Reasoning?
As of Oct 15, 2026, GPT-5.5 leads GPT-5.4 Nano in Reasoning at #26 against #143.
GPT-5.4 Nano or GPT-5.5 for Science?
As of Oct 15, 2026, GPT-5.5 leads GPT-5.4 Nano in Science at #30 against #73.