GPT-5.6 Terra vs GPT-6 Sol
As of Oct 15, 2026, GPT-5.6 Terra leads GPT-6 Sol in 5 of 10 shared categories: General LLM, Reasoning, Long context, Factuality, and Abstraction (ARC).
GPT-5.6 Terra
#4 Best recorded rank: #4 in Abstraction (ARC), as of Oct 15, 2026.
GPT-6 Sol
#5 Best current rank: #5 in Coding, as of Oct 15, 2026.
| Category | GPT-5.6 Terra | GPT-6 Sol |
|---|---|---|
| General LLM | #44 · #44 in General LLM Margin 23.40425531914893 LMArena leaderboard dataset · Oct 13, 2026 | #54 · #54 in General LLM Margin 28.723404255319153 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #41 · #41 in Reasoning Margin 22.34042553191489 LMArena leaderboard dataset · Oct 13, 2026 | #49 · #49 in Reasoning Margin 26.59574468085107 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 | #8 · #8 in Science Margin — Epoch AI benchmarking hub · Sep 22, 2026 |
| Coding | #13 · #13 in Coding Margin 63.63636363636363 Terminal-Bench Harbor Hub · Oct 6, 2026 | #5 · #5 in Coding Margin 27.272727272727266 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | #13 · #13 in Coding › Agentic Margin 63.63636363636363 Terminal-Bench Harbor Hub · Oct 6, 2026 | #5 · #5 in Coding › Agentic Margin 27.272727272727266 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Web dev | #44 · #44 in Coding › Web dev Margin 34.400000000000006 LMArena leaderboard dataset · Oct 13, 2026 | #7 · #7 in Coding › Web dev Margin 4.799999999999997 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #54 · #54 in Long context Margin 28.723404255319153 LMArena leaderboard dataset · Oct 13, 2026 | #57 · #57 in Long context Margin 30.31914893617021 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #11 · #11 in Vision Margin 31.578947368421055 Epoch AI benchmarking hub · Jul 9, 2026 | #9 · #9 in Vision Margin 26.315789473684205 Epoch AI benchmarking hub · Sep 22, 2026 |
| Factuality | #28 · #28 in Factuality Margin 16.860465116279073 LMArena leaderboard dataset · Oct 13, 2026 | #88 · #88 in Factuality Margin 51.74418604651162 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #4 · #4 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 9, 2026 | #6 · #6 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 22, 2026 |
GPT-5.6 Terra: $4.5 per 1M blended tokens.
GPT-6 Sol: $4.000000000000001 per 1M blended tokens.
GPT-5.6 Terra: closed weights.
GPT-6 Sol: closed weights.
General LLM: As of Oct 15, 2026, GPT-5.6 Terra leads GPT-6 Sol in General LLM at #44 against #54.
Reasoning: As of Oct 15, 2026, GPT-5.6 Terra leads GPT-6 Sol in Reasoning at #41 against #49.
Science: As of Oct 15, 2026, GPT-6 Sol leads GPT-5.6 Terra in Science at #8 against #15.
Coding: As of Oct 15, 2026, GPT-6 Sol leads GPT-5.6 Terra in Coding at #5 against #13.
Coding › Agentic: As of Oct 15, 2026, GPT-6 Sol leads GPT-5.6 Terra in Coding › Agentic at #5 against #13.
Coding › Web dev: As of Oct 15, 2026, GPT-6 Sol leads GPT-5.6 Terra in Coding › Web dev at #7 against #44.
Long context: As of Oct 15, 2026, GPT-5.6 Terra leads GPT-6 Sol in Long context at #54 against #57.
Vision: As of Oct 15, 2026, GPT-6 Sol leads GPT-5.6 Terra in Vision at #9 against #11.
Factuality: As of Oct 15, 2026, GPT-5.6 Terra leads GPT-6 Sol in Factuality at #28 against #88.
Abstraction (ARC): As of Oct 15, 2026, GPT-5.6 Terra leads GPT-6 Sol in Abstraction (ARC) at #4 against #6.
GPT-5.6 Terra or GPT-6 Sol?
As of Oct 15, 2026, GPT-5.6 Terra leads GPT-6 Sol in 5 of 10 shared categories: General LLM, Reasoning, Long context, Factuality, and Abstraction (ARC).
GPT-5.6 Terra or GPT-6 Sol for General LLM?
As of Oct 15, 2026, GPT-5.6 Terra leads GPT-6 Sol in General LLM at #44 against #54.
GPT-5.6 Terra or GPT-6 Sol for Reasoning?
As of Oct 15, 2026, GPT-5.6 Terra leads GPT-6 Sol in Reasoning at #41 against #49.
GPT-5.6 Terra or GPT-6 Sol for Science?
As of Oct 15, 2026, GPT-6 Sol leads GPT-5.6 Terra in Science at #8 against #15.