Claude Opus 4 vs GPT-5.6 Terra
As of Oct 14, 2026, Claude Opus 4 leads GPT-5.6 Terra in 0 of 5 shared categories.
Claude Opus 4
It used to be. Was SOTA in Reasoning.
GPT-5.6 Terra
#4 Best recorded rank: #4 in Abstraction (ARC), as of Oct 14, 2026.
| Category | Claude Opus 4 | GPT-5.6 Terra |
|---|---|---|
| General LLM | #102 · #102 in General LLM Margin 69.38775510204081 LMArena leaderboard dataset · Oct 13, 2026 | #35 · #35 in General LLM Margin 23.80952380952381 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #97 · Was SOTA · Reasoning Margin 67.12328767123287 LMArena leaderboard dataset · Oct 13, 2026 | #35 · #35 in Reasoning Margin 24.657534246575338 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #29 · #29 in Math Margin 62.22222222222222 Epoch AI benchmarking hub · May 22, 2025 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #91 · #91 in Science Margin — Epoch AI benchmarking hub · May 22, 2025 | #15 · #15 in Science Margin — Epoch AI benchmarking hub · Jul 9, 2026 |
| Coding | #— · Not enough data Margin — Epoch AI benchmarking hub · May 22, 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 | — | #42 · #42 in Coding › Web dev Margin 38.3177570093458 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #70 · #70 in Long context Margin 47.61904761904762 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 | — | #24 · #24 in Factuality Margin 18.656716417910445 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #69 · #69 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · May 22, 2025 | #4 · #4 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 9, 2026 |
Claude Opus 4: price per 1M tokens is unset in the catalog.
GPT-5.6 Terra: $4.5 per 1M blended tokens.
Claude Opus 4: closed weights.
GPT-5.6 Terra: closed weights.
General LLM: As of Oct 14, 2026, GPT-5.6 Terra leads Claude Opus 4 in General LLM at #35 against #102.
Reasoning: As of Oct 14, 2026, GPT-5.6 Terra leads Claude Opus 4 in Reasoning at #35 against #97.
Science: As of Oct 14, 2026, GPT-5.6 Terra leads Claude Opus 4 in Science at #15 against #91.
Long context: As of Oct 14, 2026, GPT-5.6 Terra leads Claude Opus 4 in Long context at #46 against #70.
Abstraction (ARC): As of Oct 14, 2026, GPT-5.6 Terra leads Claude Opus 4 in Abstraction (ARC) at #4 against #69.
Claude Opus 4 or GPT-5.6 Terra?
As of Oct 14, 2026, Claude Opus 4 leads GPT-5.6 Terra in 0 of 5 shared categories.
Claude Opus 4 or GPT-5.6 Terra for General LLM?
As of Oct 14, 2026, GPT-5.6 Terra leads Claude Opus 4 in General LLM at #35 against #102.
Claude Opus 4 or GPT-5.6 Terra for Reasoning?
As of Oct 14, 2026, GPT-5.6 Terra leads Claude Opus 4 in Reasoning at #35 against #97.
Claude Opus 4 or GPT-5.6 Terra for Science?
As of Oct 14, 2026, GPT-5.6 Terra leads Claude Opus 4 in Science at #15 against #91.