Claude Sonnet 4.5 20250929 vs GPT-5.6 Terra
As of Oct 14, 2026, Claude Sonnet 4.5 20250929 leads GPT-5.6 Terra in 0 of 2 shared categories.
Claude Sonnet 4.5 20250929
#36 Best recorded rank: #36 in Abstraction (ARC), as of Oct 14, 2026.
GPT-5.6 Terra
#4 Best recorded rank: #4 in Abstraction (ARC), as of Oct 14, 2026.
| Category | Claude Sonnet 4.5 20250929 | GPT-5.6 Terra |
|---|---|---|
| General LLM | — | #35 · #35 in General LLM Margin 23.80952380952381 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #— · Not enough data Margin — Epoch AI benchmarking hub · Sep 29, 2025 | #35 · #35 in Reasoning Margin 24.657534246575338 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | — | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #66 · #66 in Science Margin — Epoch AI benchmarking hub · Sep 29, 2025 | #15 · #15 in Science Margin — Epoch AI benchmarking hub · Jul 9, 2026 |
| Coding | — | #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 | — | #46 · #46 in Long context Margin 31.292517006802726 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | — | #11 · #11 in Vision Margin 31.578947368421055 Epoch AI benchmarking hub · Jul 9, 2026 |
| Factuality | #— · Not enough data Margin — Epoch AI benchmarking hub · Sep 29, 2025 | #24 · #24 in Factuality Margin 18.656716417910445 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #36 · #36 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 29, 2025 | #4 · #4 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 9, 2026 |
Claude Sonnet 4.5 20250929: price per 1M tokens is unset in the catalog.
GPT-5.6 Terra: $4.5 per 1M blended tokens.
Claude Sonnet 4.5 20250929: closed weights.
GPT-5.6 Terra: closed weights.
Science: As of Oct 14, 2026, GPT-5.6 Terra leads Claude Sonnet 4.5 20250929 in Science at #15 against #66.
Abstraction (ARC): As of Oct 14, 2026, GPT-5.6 Terra leads Claude Sonnet 4.5 20250929 in Abstraction (ARC) at #4 against #36.
Claude Sonnet 4.5 20250929 · GPT-5.6 Terra
Claude Sonnet 4.5 20250929 or GPT-5.6 Terra?
As of Oct 14, 2026, Claude Sonnet 4.5 20250929 leads GPT-5.6 Terra in 0 of 2 shared categories.
Claude Sonnet 4.5 20250929 or GPT-5.6 Terra for Science?
As of Oct 14, 2026, GPT-5.6 Terra leads Claude Sonnet 4.5 20250929 in Science at #15 against #66.
Claude Sonnet 4.5 20250929 or GPT-5.6 Terra for Abstraction (ARC)?
As of Oct 14, 2026, GPT-5.6 Terra leads Claude Sonnet 4.5 20250929 in Abstraction (ARC) at #4 against #36.