GPT-5.6 Terra vs Grok 4.5
As of Oct 15, 2026, GPT-5.6 Terra leads Grok 4.5 in 7 of 10 shared categories: General LLM, Reasoning, Coding, Coding › Agentic, Vision, Factuality, and Abstraction (ARC).
GPT-5.6 Terra
#4 Best recorded rank: #4 in Abstraction (ARC), as of Oct 15, 2026.
Grok 4.5
#14 Best recorded rank: #14 in Science, as of Oct 15, 2026.
| Category | GPT-5.6 Terra | Grok 4.5 |
|---|---|---|
| General LLM | #44 · #44 in General LLM Margin 23.40425531914893 LMArena leaderboard dataset · Oct 13, 2026 | #45 · #45 in General LLM Margin 23.93617021276596 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #41 · #41 in Reasoning Margin 22.34042553191489 LMArena leaderboard dataset · Oct 13, 2026 | #44 · #44 in Reasoning Margin 23.93617021276596 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 | #14 · #14 in Science Margin — Epoch AI benchmarking hub · Jul 8, 2026 |
| Coding | #13 · #13 in Coding Margin 63.63636363636363 Terminal-Bench Harbor Hub · Oct 6, 2026 | #19 · #19 in Coding Margin 95.45454545454545 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | #13 · #13 in Coding › Agentic Margin 63.63636363636363 Terminal-Bench Harbor Hub · Oct 6, 2026 | #19 · #19 in Coding › Agentic Margin 95.45454545454545 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 | #36 · #36 in Coding › Web dev Margin 28 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #54 · #54 in Long context Margin 28.723404255319153 LMArena leaderboard dataset · Oct 13, 2026 | #41 · #41 in Long context Margin 21.808510638297875 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #11 · #11 in Vision Margin 31.578947368421055 Epoch AI benchmarking hub · Jul 9, 2026 | #29 · #29 in Vision Margin 86.84210526315789 Epoch AI benchmarking hub · Jul 8, 2026 |
| Factuality | #28 · #28 in Factuality Margin 16.860465116279073 LMArena leaderboard dataset · Oct 13, 2026 | #30 · #30 in Factuality Margin 18.023255813953483 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #4 · #4 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 9, 2026 | #21 · #21 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 8, 2026 |
GPT-5.6 Terra: $4.5 per 1M blended tokens.
Grok 4.5: $3 per 1M blended tokens.
GPT-5.6 Terra: closed weights.
Grok 4.5: closed weights.
General LLM: As of Oct 15, 2026, GPT-5.6 Terra leads Grok 4.5 in General LLM at #44 against #45.
Reasoning: As of Oct 15, 2026, GPT-5.6 Terra leads Grok 4.5 in Reasoning at #41 against #44.
Science: As of Oct 15, 2026, Grok 4.5 leads GPT-5.6 Terra in Science at #14 against #15.
Coding: As of Oct 15, 2026, GPT-5.6 Terra leads Grok 4.5 in Coding at #13 against #19.
Coding › Agentic: As of Oct 15, 2026, GPT-5.6 Terra leads Grok 4.5 in Coding › Agentic at #13 against #19.
Coding › Web dev: As of Oct 15, 2026, Grok 4.5 leads GPT-5.6 Terra in Coding › Web dev at #36 against #44.
Long context: As of Oct 15, 2026, Grok 4.5 leads GPT-5.6 Terra in Long context at #41 against #54.
Vision: As of Oct 15, 2026, GPT-5.6 Terra leads Grok 4.5 in Vision at #11 against #29.
Factuality: As of Oct 15, 2026, GPT-5.6 Terra leads Grok 4.5 in Factuality at #28 against #30.
Abstraction (ARC): As of Oct 15, 2026, GPT-5.6 Terra leads Grok 4.5 in Abstraction (ARC) at #4 against #21.
GPT-5.6 Terra or Grok 4.5?
As of Oct 15, 2026, GPT-5.6 Terra leads Grok 4.5 in 7 of 10 shared categories: General LLM, Reasoning, Coding, Coding › Agentic, Vision, Factuality, and Abstraction (ARC).
GPT-5.6 Terra or Grok 4.5 for General LLM?
As of Oct 15, 2026, GPT-5.6 Terra leads Grok 4.5 in General LLM at #44 against #45.
GPT-5.6 Terra or Grok 4.5 for Reasoning?
As of Oct 15, 2026, GPT-5.6 Terra leads Grok 4.5 in Reasoning at #41 against #44.
GPT-5.6 Terra or Grok 4.5 for Science?
As of Oct 15, 2026, Grok 4.5 leads GPT-5.6 Terra in Science at #14 against #15.