GPT-5.6 Terra vs O1
As of Oct 15, 2026, GPT-5.6 Terra leads O1 in 5 of 5 shared categories: General LLM, Reasoning, Science, Long context, and Abstraction (ARC).
GPT-5.6 Terra
#4 Best recorded rank: #4 in Abstraction (ARC), as of Oct 15, 2026.
O1
It used to be. Was SOTA in General LLM.
| Category | GPT-5.6 Terra | O1 |
|---|---|---|
| General LLM | #35 · #35 in General LLM Margin 23.80952380952381 LMArena leaderboard dataset · Oct 13, 2026 | #112 · Was SOTA · General LLM Margin 76.19047619047619 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #35 · #35 in Reasoning Margin 24.657534246575338 LMArena leaderboard dataset · Oct 13, 2026 | #117 · Was SOTA · Reasoning Margin 80.82191780821918 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #34 · #34 in Math Margin 75.55555555555556 Epoch AI benchmarking hub · Dec 17, 2024 |
| Science | #15 · #15 in Science Margin — Epoch AI benchmarking hub · Jul 9, 2026 | #77 · #77 in Science Margin — Epoch AI benchmarking hub · Dec 17, 2024 |
| 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 | #108 · Was SOTA · Long context Margin 73.46938775510205 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #11 · #11 in Vision Margin 31.578947368421055 Epoch AI benchmarking hub · Jul 9, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #24 · #24 in Factuality Margin 18.656716417910445 LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Dec 17, 2024 |
| Abstraction (ARC) | #4 · #4 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 9, 2026 | #57 · #57 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Dec 17, 2024 |
GPT-5.6 Terra: $4.5 per 1M blended tokens.
O1: $26.25 per 1M blended tokens.
GPT-5.6 Terra: closed weights.
O1: closed weights.
General LLM: As of Oct 15, 2026, GPT-5.6 Terra leads O1 in General LLM at #35 against #112.
Reasoning: As of Oct 15, 2026, GPT-5.6 Terra leads O1 in Reasoning at #35 against #117.
Science: As of Oct 15, 2026, GPT-5.6 Terra leads O1 in Science at #15 against #77.
Long context: As of Oct 15, 2026, GPT-5.6 Terra leads O1 in Long context at #46 against #108.
Abstraction (ARC): As of Oct 15, 2026, GPT-5.6 Terra leads O1 in Abstraction (ARC) at #4 against #57.
GPT-5.6 Terra or O1?
As of Oct 15, 2026, GPT-5.6 Terra leads O1 in 5 of 5 shared categories: General LLM, Reasoning, Science, Long context, and Abstraction (ARC).
GPT-5.6 Terra or O1 for General LLM?
As of Oct 15, 2026, GPT-5.6 Terra leads O1 in General LLM at #35 against #112.
GPT-5.6 Terra or O1 for Reasoning?
As of Oct 15, 2026, GPT-5.6 Terra leads O1 in Reasoning at #35 against #117.
GPT-5.6 Terra or O1 for Science?
As of Oct 15, 2026, GPT-5.6 Terra leads O1 in Science at #15 against #77.