GPT-5 vs GPT-5.6 Terra
As of Oct 14, 2026, GPT-5 leads GPT-5.6 Terra in 0 of 7 shared categories.
GPT-5
It used to be. Was SOTA in General LLM.
GPT-5.6 Terra
#4 Best recorded rank: #4 in Abstraction (ARC), as of Oct 14, 2026.
| Category | GPT-5 | GPT-5.6 Terra |
|---|---|---|
| General LLM | #76 · Was SOTA · General LLM Margin 51.70068027210884 LMArena leaderboard dataset · Oct 13, 2026 | #35 · #35 in General LLM Margin 23.80952380952381 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #78 · Was SOTA · Reasoning Margin 54.10958904109589 LMArena leaderboard dataset · Oct 13, 2026 | #35 · #35 in Reasoning Margin 24.657534246575338 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #15 · Was SOTA · Math Margin 31.111111111111114 Epoch AI benchmarking hub · Aug 7, 2025 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #54 · #54 in Science Margin — Epoch AI benchmarking hub · Aug 7, 2025 | #15 · #15 in Science Margin — Epoch AI benchmarking hub · Jul 9, 2026 |
| Coding | #— · Not enough data Margin — Epoch AI benchmarking hub · Aug 7, 2025 | #13 · #13 in Coding Margin 63.63636363636363 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | — | #13 · #13 in Coding › Agentic Margin 63.63636363636363 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Web dev | #66 · #66 in Coding › Web dev Margin 60.74766355140187 LMArena leaderboard dataset · Oct 13, 2026 | #42 · #42 in Coding › Web dev Margin 38.3177570093458 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #107 · Was SOTA · Long context Margin 72.78911564625851 LMArena leaderboard dataset · Oct 13, 2026 | #46 · #46 in Long context Margin 31.292517006802726 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 | #11 · #11 in Vision Margin 31.578947368421055 Epoch AI benchmarking hub · Jul 9, 2026 |
| Factuality | #93 · #93 in Factuality Margin 70.14925373134328 LMArena leaderboard dataset · Oct 13, 2026 | #24 · #24 in Factuality Margin 18.656716417910445 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #34 · #34 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Aug 7, 2025 | #4 · #4 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 9, 2026 |
GPT-5: $3.4375000000000004 per 1M blended tokens.
GPT-5.6 Terra: $4.5 per 1M blended tokens.
GPT-5: closed weights.
GPT-5.6 Terra: closed weights.
General LLM: As of Oct 14, 2026, GPT-5.6 Terra leads GPT-5 in General LLM at #35 against #76.
Reasoning: As of Oct 14, 2026, GPT-5.6 Terra leads GPT-5 in Reasoning at #35 against #78.
Science: As of Oct 14, 2026, GPT-5.6 Terra leads GPT-5 in Science at #15 against #54.
Coding › Web dev: As of Oct 14, 2026, GPT-5.6 Terra leads GPT-5 in Coding › Web dev at #42 against #66.
Long context: As of Oct 14, 2026, GPT-5.6 Terra leads GPT-5 in Long context at #46 against #107.
Factuality: As of Oct 14, 2026, GPT-5.6 Terra leads GPT-5 in Factuality at #24 against #93.
Abstraction (ARC): As of Oct 14, 2026, GPT-5.6 Terra leads GPT-5 in Abstraction (ARC) at #4 against #34.
GPT-5 or GPT-5.6 Terra?
As of Oct 14, 2026, GPT-5 leads GPT-5.6 Terra in 0 of 7 shared categories.
GPT-5 or GPT-5.6 Terra for General LLM?
As of Oct 14, 2026, GPT-5.6 Terra leads GPT-5 in General LLM at #35 against #76.
GPT-5 or GPT-5.6 Terra for Reasoning?
As of Oct 14, 2026, GPT-5.6 Terra leads GPT-5 in Reasoning at #35 against #78.
GPT-5 or GPT-5.6 Terra for Science?
As of Oct 14, 2026, GPT-5.6 Terra leads GPT-5 in Science at #15 against #54.