GPT-5.6 Sol vs GPT-6.1 Sol
As of Oct 15, 2026, GPT-5.6 Sol leads GPT-6.1 Sol in 4 of 10 shared categories: General LLM, Reasoning, Long context, and Factuality.
| Category | GPT-5.6 Sol | GPT-6.1 Sol |
|---|---|---|
| General LLM | #17 · #17 in General LLM Margin 9.042553191489361 LMArena leaderboard dataset · Oct 13, 2026 | #18 · #18 in General LLM Margin 9.574468085106389 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #12 · #12 in Reasoning Margin 6.914893617021278 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 | #13 · #13 in Science Margin — Epoch AI benchmarking hub · Jul 9, 2026 | #4 · #4 in Science Margin — Epoch AI benchmarking hub · Sep 29, 2026 |
| Coding | #9 · #9 in Coding Margin 45.45454545454545 Terminal-Bench Harbor Hub · Oct 6, 2026 | #2 · Near-SOTA · Coding Margin 13.63636363636364 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | #9 · #9 in Coding › Agentic Margin 45.45454545454545 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 | #23 · Was SOTA · Coding › Web dev Margin 17.599999999999994 LMArena leaderboard dataset · Oct 13, 2026 | #4 · Near-SOTA · Coding › Web dev Margin 2.4000000000000057 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #13 · #13 in Long context Margin 6.914893617021278 LMArena leaderboard dataset · Oct 13, 2026 | #18 · #18 in Long context Margin 9.574468085106389 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #3 · Near-SOTA · Vision Margin 10.526315789473685 Epoch AI benchmarking hub · Jul 9, 2026 | #1 · Co-SOTA · Vision Margin 0 Epoch AI benchmarking hub · Sep 29, 2026 |
| Factuality | #15 · #15 in Factuality Margin 9.302325581395351 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 9, 2026 | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 29, 2026 |
GPT-5.6 Sol: $8.000000000000002 per 1M blended tokens.
GPT-6.1 Sol: $4.000000000000001 per 1M blended tokens.
GPT-5.6 Sol: closed weights.
GPT-6.1 Sol: closed weights.
General LLM: As of Oct 15, 2026, GPT-5.6 Sol leads GPT-6.1 Sol in General LLM at #17 against #18.
Reasoning: As of Oct 15, 2026, GPT-5.6 Sol leads GPT-6.1 Sol in Reasoning at #12 against #15.
Science: As of Oct 15, 2026, GPT-6.1 Sol leads GPT-5.6 Sol in Science at #4 against #13.
Coding: As of Oct 15, 2026, GPT-6.1 Sol leads GPT-5.6 Sol in Coding at #2 against #9.
Coding › Agentic: As of Oct 15, 2026, GPT-6.1 Sol leads GPT-5.6 Sol in Coding › Agentic at #2 against #9.
Coding › Web dev: As of Oct 15, 2026, GPT-6.1 Sol leads GPT-5.6 Sol in Coding › Web dev at #4 against #23.
Long context: As of Oct 15, 2026, GPT-5.6 Sol leads GPT-6.1 Sol in Long context at #13 against #18.
Vision: As of Oct 15, 2026, GPT-6.1 Sol leads GPT-5.6 Sol in Vision at #1 against #3.
Factuality: As of Oct 15, 2026, GPT-5.6 Sol leads GPT-6.1 Sol in Factuality at #15 against #33.
Abstraction (ARC): As of Oct 15, 2026, GPT-6.1 Sol leads GPT-5.6 Sol in Abstraction (ARC) at #1 against #3.
GPT-5.6 Sol or GPT-6.1 Sol?
As of Oct 15, 2026, GPT-5.6 Sol leads GPT-6.1 Sol in 4 of 10 shared categories: General LLM, Reasoning, Long context, and Factuality.
GPT-5.6 Sol or GPT-6.1 Sol for General LLM?
As of Oct 15, 2026, GPT-5.6 Sol leads GPT-6.1 Sol in General LLM at #17 against #18.
GPT-5.6 Sol or GPT-6.1 Sol for Reasoning?
As of Oct 15, 2026, GPT-5.6 Sol leads GPT-6.1 Sol in Reasoning at #12 against #15.
GPT-5.6 Sol or GPT-6.1 Sol for Science?
As of Oct 15, 2026, GPT-6.1 Sol leads GPT-5.6 Sol in Science at #4 against #13.