Claude Opus 4.8 vs GPT-5.6 Sol
As of Oct 15, 2026, Claude Opus 4.8 leads GPT-5.6 Sol in 2 of 10 shared categories: Reasoning and Long context.
Claude Opus 4.8
It used to be. Was SOTA in Coding › Web dev.
GPT-5.6 Sol
Close. Near-SOTA in Vision, rank #3.
| Category | Claude Opus 4.8 | GPT-5.6 Sol |
|---|---|---|
| General LLM | #21 · #21 in General LLM Margin 11.170212765957444 LMArena leaderboard dataset · Oct 13, 2026 | #17 · #17 in General LLM Margin 9.042553191489361 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #10 · #10 in Reasoning Margin 5.851063829787236 LMArena leaderboard dataset · Oct 13, 2026 | #12 · #12 in Reasoning Margin 6.914893617021278 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 | #27 · #27 in Science Margin — Epoch AI benchmarking hub · May 28, 2026 | #13 · #13 in Science Margin — Epoch AI benchmarking hub · Jul 9, 2026 |
| Coding | #12 · #12 in Coding Margin 59.09090909090909 Terminal-Bench Harbor Hub · Oct 6, 2026 | #9 · #9 in Coding Margin 45.45454545454545 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | #12 · #12 in Coding › Agentic Margin 59.09090909090909 Terminal-Bench Harbor Hub · Oct 6, 2026 | #9 · #9 in Coding › Agentic Margin 45.45454545454545 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Web dev | #35 · Was SOTA · Coding › Web dev Margin 27.200000000000003 LMArena leaderboard dataset · Oct 13, 2026 | #23 · Was SOTA · Coding › Web dev Margin 17.599999999999994 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #10 · Was SOTA · Long context Margin 5.319148936170208 LMArena leaderboard dataset · Oct 13, 2026 | #13 · #13 in Long context Margin 6.914893617021278 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #13 · #13 in Vision Margin 36.842105263157904 Epoch AI benchmarking hub · May 28, 2026 | #3 · Near-SOTA · Vision Margin 10.526315789473685 Epoch AI benchmarking hub · Jul 9, 2026 |
| Factuality | #24 · #24 in Factuality Margin 14.534883720930239 LMArena leaderboard dataset · Oct 13, 2026 | #15 · #15 in Factuality Margin 9.302325581395351 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #12 · #12 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · May 28, 2026 | #3 · #3 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 9, 2026 |
Claude Opus 4.8: $10 per 1M blended tokens.
GPT-5.6 Sol: $8.000000000000002 per 1M blended tokens.
Claude Opus 4.8: closed weights.
GPT-5.6 Sol: closed weights.
General LLM: As of Oct 15, 2026, GPT-5.6 Sol leads Claude Opus 4.8 in General LLM at #17 against #21.
Reasoning: As of Oct 15, 2026, Claude Opus 4.8 leads GPT-5.6 Sol in Reasoning at #10 against #12.
Science: As of Oct 15, 2026, GPT-5.6 Sol leads Claude Opus 4.8 in Science at #13 against #27.
Coding: As of Oct 15, 2026, GPT-5.6 Sol leads Claude Opus 4.8 in Coding at #9 against #12.
Coding › Agentic: As of Oct 15, 2026, GPT-5.6 Sol leads Claude Opus 4.8 in Coding › Agentic at #9 against #12.
Coding › Web dev: As of Oct 15, 2026, GPT-5.6 Sol leads Claude Opus 4.8 in Coding › Web dev at #23 against #35.
Long context: As of Oct 15, 2026, Claude Opus 4.8 leads GPT-5.6 Sol in Long context at #10 against #13.
Vision: As of Oct 15, 2026, GPT-5.6 Sol leads Claude Opus 4.8 in Vision at #3 against #13.
Factuality: As of Oct 15, 2026, GPT-5.6 Sol leads Claude Opus 4.8 in Factuality at #15 against #24.
Abstraction (ARC): As of Oct 15, 2026, GPT-5.6 Sol leads Claude Opus 4.8 in Abstraction (ARC) at #3 against #12.
Claude Opus 4.8 or GPT-5.6 Sol?
As of Oct 15, 2026, Claude Opus 4.8 leads GPT-5.6 Sol in 2 of 10 shared categories: Reasoning and Long context.
Claude Opus 4.8 or GPT-5.6 Sol for General LLM?
As of Oct 15, 2026, GPT-5.6 Sol leads Claude Opus 4.8 in General LLM at #17 against #21.
Claude Opus 4.8 or GPT-5.6 Sol for Reasoning?
As of Oct 15, 2026, Claude Opus 4.8 leads GPT-5.6 Sol in Reasoning at #10 against #12.
Claude Opus 4.8 or GPT-5.6 Sol for Science?
As of Oct 15, 2026, GPT-5.6 Sol leads Claude Opus 4.8 in Science at #13 against #27.