GPT-5.6 Luna vs O3 Mini
As of Oct 14, 2026, GPT-5.6 Luna leads O3 Mini in 4 of 5 shared categories: Reasoning, Science, Long context, and Abstraction (ARC).
GPT-5.6 Luna
#16 Best current rank: #16 in Coding, as of Oct 14, 2026.
O3 Mini
It used to be. Was SOTA in Reasoning.
| Category | GPT-5.6 Luna | O3 Mini |
|---|---|---|
| General LLM | #53 · #53 in General LLM Margin 36.054421768707485 LMArena leaderboard dataset · Oct 13, 2026 | #7 · #7 in General LLM Margin — LMArena leaderboard dataset · Apr 16, 2025 |
| Reasoning | #55 · #55 in Reasoning Margin 38.35616438356164 LMArena leaderboard dataset · Oct 13, 2026 | #133 · Was SOTA · Reasoning Margin 91.78082191780823 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 | #25 · #25 in Science Margin — Epoch AI benchmarking hub · Jul 9, 2026 | #76 · #76 in Science Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
| Coding | #16 · #16 in Coding Margin 77.27272727272728 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Agentic | #16 · #16 in Coding › Agentic Margin 77.27272727272728 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #43 · #43 in Coding › Web dev Margin 39.25233644859813 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #65 · #65 in Long context Margin 44.21768707482993 LMArena leaderboard dataset · Oct 13, 2026 | #145 · #145 in Long context Margin 98.63945578231292 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #19 · #19 in Vision Margin 52.63157894736842 Epoch AI benchmarking hub · Jul 9, 2026 | — |
| Factuality | #35 · #35 in Factuality Margin 26.86567164179104 LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
| Abstraction (ARC) | #19 · #19 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 9, 2026 | #51 · #51 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
GPT-5.6 Luna: $0.44999999999999996 per 1M blended tokens.
O3 Mini: $1.9250000000000003 per 1M blended tokens.
GPT-5.6 Luna: closed weights.
O3 Mini: closed weights.
General LLM: As of Oct 14, 2026, O3 Mini leads GPT-5.6 Luna in General LLM at #7 against #53.
Reasoning: As of Oct 14, 2026, GPT-5.6 Luna leads O3 Mini in Reasoning at #55 against #133.
Science: As of Oct 14, 2026, GPT-5.6 Luna leads O3 Mini in Science at #25 against #76.
Long context: As of Oct 14, 2026, GPT-5.6 Luna leads O3 Mini in Long context at #65 against #145.
Abstraction (ARC): As of Oct 14, 2026, GPT-5.6 Luna leads O3 Mini in Abstraction (ARC) at #19 against #51.
GPT-5.6 Luna or O3 Mini?
As of Oct 14, 2026, GPT-5.6 Luna leads O3 Mini in 4 of 5 shared categories: Reasoning, Science, Long context, and Abstraction (ARC).
GPT-5.6 Luna or O3 Mini for General LLM?
As of Oct 14, 2026, O3 Mini leads GPT-5.6 Luna in General LLM at #7 against #53.
GPT-5.6 Luna or O3 Mini for Reasoning?
As of Oct 14, 2026, GPT-5.6 Luna leads O3 Mini in Reasoning at #55 against #133.
GPT-5.6 Luna or O3 Mini for Science?
As of Oct 14, 2026, GPT-5.6 Luna leads O3 Mini in Science at #25 against #76.