Claude Opus 4.6 vs GPT-6 Luna
As of Oct 14, 2026, Claude Opus 4.6 leads GPT-6 Luna in 5 of 6 shared categories: General LLM, Reasoning, Science, Long context, and Factuality.
Claude Opus 4.6
Close. Near-SOTA in Reasoning, rank #2.
GPT-6 Luna
Yes. Yes on Coding (best per dollar); Coding › Agentic (best per dollar). Not the overall leader.
| Category | Claude Opus 4.6 | GPT-6 Luna |
|---|---|---|
| General LLM | #4 · Near-SOTA · General LLM Margin 2.7210884353741562 LMArena leaderboard dataset · Oct 13, 2026 | #65 · #65 in General LLM Margin 44.21768707482993 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #2 · Near-SOTA · Reasoning Margin 2.0547945205479436 LMArena leaderboard dataset · Oct 13, 2026 | #61 · #61 in Reasoning Margin 42.465753424657535 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #11 · #11 in Math Margin 22.22222222222223 Epoch AI benchmarking hub · Feb 5, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #32 · #32 in Science Margin — Epoch AI benchmarking hub · Feb 5, 2026 | #33 · #33 in Science Margin — Epoch AI benchmarking hub · Sep 22, 2026 |
| Coding | #— · Not enough data Margin — Epoch AI benchmarking hub · Feb 5, 2026 | #17 · #17 in Coding Margin 81.81818181818181 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | — | #17 · #17 in Coding › Agentic Margin 81.81818181818181 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Web dev | #35 · Was SOTA · Coding › Web dev Margin 31.775700934579433 LMArena leaderboard dataset · Oct 13, 2026 | #29 · #29 in Coding › Web dev Margin 26.168224299065415 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #2 · Near-SOTA · Long context Margin 0.6802721088435391 LMArena leaderboard dataset · Oct 13, 2026 | #61 · #61 in Long context Margin 41.49659863945578 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 | #17 · #17 in Vision Margin 47.36842105263158 Epoch AI benchmarking hub · Sep 22, 2026 |
| Factuality | #3 · Near-SOTA · Factuality Margin 2.9850746268656536 LMArena leaderboard dataset · Oct 13, 2026 | #39 · #39 in Factuality Margin 29.85074626865672 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | — | #22 · #22 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 22, 2026 |
Claude Opus 4.6: $10 per 1M blended tokens.
GPT-6 Luna: $0.19999999999999998 per 1M blended tokens.
Claude Opus 4.6: closed weights.
GPT-6 Luna: closed weights.
General LLM: As of Oct 14, 2026, Claude Opus 4.6 leads GPT-6 Luna in General LLM at #4 against #65.
Reasoning: As of Oct 14, 2026, Claude Opus 4.6 leads GPT-6 Luna in Reasoning at #2 against #61.
Science: As of Oct 14, 2026, Claude Opus 4.6 leads GPT-6 Luna in Science at #32 against #33.
Coding › Web dev: As of Oct 14, 2026, GPT-6 Luna leads Claude Opus 4.6 in Coding › Web dev at #29 against #35.
Long context: As of Oct 14, 2026, Claude Opus 4.6 leads GPT-6 Luna in Long context at #2 against #61.
Factuality: As of Oct 14, 2026, Claude Opus 4.6 leads GPT-6 Luna in Factuality at #3 against #39.
Claude Opus 4.6 or GPT-6 Luna?
As of Oct 14, 2026, Claude Opus 4.6 leads GPT-6 Luna in 5 of 6 shared categories: General LLM, Reasoning, Science, Long context, and Factuality.
Claude Opus 4.6 or GPT-6 Luna for General LLM?
As of Oct 14, 2026, Claude Opus 4.6 leads GPT-6 Luna in General LLM at #4 against #65.
Claude Opus 4.6 or GPT-6 Luna for Reasoning?
As of Oct 14, 2026, Claude Opus 4.6 leads GPT-6 Luna in Reasoning at #2 against #61.
Claude Opus 4.6 or GPT-6 Luna for Science?
As of Oct 14, 2026, Claude Opus 4.6 leads GPT-6 Luna in Science at #32 against #33.