GPT-5.4 Pro vs GPT-5.6 Luna
As of Oct 15, 2026, GPT-5.4 Pro leads GPT-5.6 Luna in 2 of 2 shared categories: Science and Abstraction (ARC).
GPT-5.4 Pro
It used to be. Was SOTA in Math.
GPT-5.6 Luna
#16 Best current rank: #16 in Coding, as of Oct 15, 2026.
| Category | GPT-5.4 Pro | GPT-5.6 Luna |
|---|---|---|
| General LLM | — | #66 · #66 in General LLM Margin 35.1063829787234 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #— · Not enough data Margin — Epoch AI benchmarking hub · Mar 5, 2026 | #69 · #69 in Reasoning Margin 37.234042553191486 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #6 · Was SOTA · Math Margin 11.111111111111114 Epoch AI benchmarking hub · Mar 5, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #6 · #6 in Science Margin — Epoch AI benchmarking hub · Mar 5, 2026 | #25 · #25 in Science Margin — Epoch AI benchmarking hub · Jul 9, 2026 |
| Coding | — | #16 · #16 in Coding Margin 77.27272727272728 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | — | #16 · #16 in Coding › Agentic Margin 77.27272727272728 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Web dev | — | #46 · #46 in Coding › Web dev Margin 36 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | — | #80 · #80 in Long context Margin 42.5531914893617 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | — | #19 · #19 in Vision Margin 52.63157894736842 Epoch AI benchmarking hub · Jul 9, 2026 |
| Factuality | #— · Not enough data Margin — Epoch AI benchmarking hub · Mar 5, 2026 | #39 · #39 in Factuality Margin 23.25581395348837 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #8 · #8 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Mar 5, 2026 | #19 · #19 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 9, 2026 |
GPT-5.4 Pro: $67.5 per 1M blended tokens.
GPT-5.6 Luna: $0.44999999999999996 per 1M blended tokens.
GPT-5.4 Pro: closed weights.
GPT-5.6 Luna: closed weights.
Science: As of Oct 15, 2026, GPT-5.4 Pro leads GPT-5.6 Luna in Science at #6 against #25.
Abstraction (ARC): As of Oct 15, 2026, GPT-5.4 Pro leads GPT-5.6 Luna in Abstraction (ARC) at #8 against #19.
GPT-5.4 Pro or GPT-5.6 Luna?
As of Oct 15, 2026, GPT-5.4 Pro leads GPT-5.6 Luna in 2 of 2 shared categories: Science and Abstraction (ARC).
GPT-5.4 Pro or GPT-5.6 Luna for Science?
As of Oct 15, 2026, GPT-5.4 Pro leads GPT-5.6 Luna in Science at #6 against #25.
GPT-5.4 Pro or GPT-5.6 Luna for Abstraction (ARC)?
As of Oct 15, 2026, GPT-5.4 Pro leads GPT-5.6 Luna in Abstraction (ARC) at #8 against #19.