Claude Opus 5 vs GPT-6.1 Sol
As of Oct 15, 2026, Claude Opus 5 leads GPT-6.1 Sol in 4 of 10 shared categories: General LLM, Reasoning, Long context, and Factuality.
| Category | Claude Opus 5 | GPT-6.1 Sol |
|---|---|---|
| General LLM | #11 · Was SOTA · General LLM Margin 5.851063829787236 LMArena leaderboard dataset · Oct 13, 2026 | #18 · #18 in General LLM Margin 9.574468085106389 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #9 · Was SOTA · Reasoning Margin 5.319148936170208 LMArena leaderboard dataset · Oct 13, 2026 | #15 · #15 in Reasoning Margin 8.510638297872347 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 | #12 · #12 in Science Margin — Epoch AI benchmarking hub · Jul 24, 2026 | #4 · #4 in Science Margin — Epoch AI benchmarking hub · Sep 29, 2026 |
| Coding | #4 · #4 in Coding Margin 22.727272727272734 Terminal-Bench Harbor Hub · Oct 6, 2026 | #2 · Near-SOTA · Coding Margin 13.63636363636364 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | #4 · #4 in Coding › Agentic Margin 22.727272727272734 Terminal-Bench Harbor Hub · Oct 6, 2026 | #2 · Near-SOTA · Coding › Agentic Margin 13.63636363636364 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Web dev | #6 · Near-SOTA · Coding › Web dev Margin 4 LMArena leaderboard dataset · Oct 13, 2026 | #4 · Near-SOTA · Coding › Web dev Margin 2.4000000000000057 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #9 · Was SOTA · Long context Margin 4.7872340425531945 LMArena leaderboard dataset · Oct 13, 2026 | #18 · #18 in Long context Margin 9.574468085106389 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #12 · #12 in Vision Margin 36.8421052631579 Epoch AI benchmarking hub · Jul 24, 2026 | #1 · Co-SOTA · Vision Margin 0 Epoch AI benchmarking hub · Sep 29, 2026 |
| Factuality | #4 · Near-SOTA · Factuality Margin 2.9069767441860535 LMArena leaderboard dataset · Oct 13, 2026 | #33 · #33 in Factuality Margin 19.767441860465127 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #3 · #3 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 24, 2026 | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 29, 2026 |
Claude Opus 5: $10 per 1M blended tokens.
GPT-6.1 Sol: $4.000000000000001 per 1M blended tokens.
Claude Opus 5: closed weights.
GPT-6.1 Sol: closed weights.
General LLM: As of Oct 15, 2026, Claude Opus 5 leads GPT-6.1 Sol in General LLM at #11 against #18.
Reasoning: As of Oct 15, 2026, Claude Opus 5 leads GPT-6.1 Sol in Reasoning at #9 against #15.
Science: As of Oct 15, 2026, GPT-6.1 Sol leads Claude Opus 5 in Science at #4 against #12.
Coding: As of Oct 15, 2026, GPT-6.1 Sol leads Claude Opus 5 in Coding at #2 against #4.
Coding › Agentic: As of Oct 15, 2026, GPT-6.1 Sol leads Claude Opus 5 in Coding › Agentic at #2 against #4.
Coding › Web dev: As of Oct 15, 2026, GPT-6.1 Sol leads Claude Opus 5 in Coding › Web dev at #4 against #6.
Long context: As of Oct 15, 2026, Claude Opus 5 leads GPT-6.1 Sol in Long context at #9 against #18.
Vision: As of Oct 15, 2026, GPT-6.1 Sol leads Claude Opus 5 in Vision at #1 against #12.
Factuality: As of Oct 15, 2026, Claude Opus 5 leads GPT-6.1 Sol in Factuality at #4 against #33.
Abstraction (ARC): As of Oct 15, 2026, GPT-6.1 Sol leads Claude Opus 5 in Abstraction (ARC) at #1 against #3.
Claude Opus 5 or GPT-6.1 Sol?
As of Oct 15, 2026, Claude Opus 5 leads GPT-6.1 Sol in 4 of 10 shared categories: General LLM, Reasoning, Long context, and Factuality.
Claude Opus 5 or GPT-6.1 Sol for General LLM?
As of Oct 15, 2026, Claude Opus 5 leads GPT-6.1 Sol in General LLM at #11 against #18.
Claude Opus 5 or GPT-6.1 Sol for Reasoning?
As of Oct 15, 2026, Claude Opus 5 leads GPT-6.1 Sol in Reasoning at #9 against #15.
Claude Opus 5 or GPT-6.1 Sol for Science?
As of Oct 15, 2026, GPT-6.1 Sol leads Claude Opus 5 in Science at #4 against #12.