GPT-5.6 Terra vs O3 Mini
As of Oct 14, 2026, GPT-5.6 Terra leads O3 Mini in 4 of 5 shared categories: Reasoning, Science, Long context, and Abstraction (ARC).
GPT-5.6 Terra
#4 Best recorded rank: #4 in Abstraction (ARC), as of Oct 14, 2026.
O3 Mini
It used to be. Was SOTA in Reasoning.
| Category | GPT-5.6 Terra | O3 Mini |
|---|---|---|
| General LLM | #35 · #35 in General LLM Margin 23.80952380952381 LMArena leaderboard dataset · Oct 13, 2026 | #7 · #7 in General LLM Margin — LMArena leaderboard dataset · Apr 16, 2025 |
| Reasoning | #35 · #35 in Reasoning Margin 24.657534246575338 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 | #15 · #15 in Science Margin — Epoch AI benchmarking hub · Jul 9, 2026 | #76 · #76 in Science Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
| Coding | #13 · #13 in Coding Margin 63.63636363636363 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Agentic | #13 · #13 in Coding › Agentic Margin 63.63636363636363 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #42 · #42 in Coding › Web dev Margin 38.3177570093458 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #46 · #46 in Long context Margin 31.292517006802726 LMArena leaderboard dataset · Oct 13, 2026 | #145 · #145 in Long context Margin 98.63945578231292 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #11 · #11 in Vision Margin 31.578947368421055 Epoch AI benchmarking hub · Jul 9, 2026 | — |
| Factuality | #24 · #24 in Factuality Margin 18.656716417910445 LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
| Abstraction (ARC) | #4 · #4 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 Terra: $4.5 per 1M blended tokens.
O3 Mini: $1.9250000000000003 per 1M blended tokens.
GPT-5.6 Terra: closed weights.
O3 Mini: closed weights.
General LLM: As of Oct 14, 2026, O3 Mini leads GPT-5.6 Terra in General LLM at #7 against #35.
Reasoning: As of Oct 14, 2026, GPT-5.6 Terra leads O3 Mini in Reasoning at #35 against #133.
Science: As of Oct 14, 2026, GPT-5.6 Terra leads O3 Mini in Science at #15 against #76.
Long context: As of Oct 14, 2026, GPT-5.6 Terra leads O3 Mini in Long context at #46 against #145.
Abstraction (ARC): As of Oct 14, 2026, GPT-5.6 Terra leads O3 Mini in Abstraction (ARC) at #4 against #51.
GPT-5.6 Terra or O3 Mini?
As of Oct 14, 2026, GPT-5.6 Terra leads O3 Mini in 4 of 5 shared categories: Reasoning, Science, Long context, and Abstraction (ARC).
GPT-5.6 Terra or O3 Mini for General LLM?
As of Oct 14, 2026, O3 Mini leads GPT-5.6 Terra in General LLM at #7 against #35.
GPT-5.6 Terra or O3 Mini for Reasoning?
As of Oct 14, 2026, GPT-5.6 Terra leads O3 Mini in Reasoning at #35 against #133.
GPT-5.6 Terra or O3 Mini for Science?
As of Oct 14, 2026, GPT-5.6 Terra leads O3 Mini in Science at #15 against #76.