Compare · 2026-10-14

GPT-5.6 Sol vs Grok 4.3

As of Oct 14, 2026, GPT-5.6 Sol leads Grok 4.3 in 7 of 7 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, Vision, and Factuality.

CategoryGPT-5.6 SolGrok 4.3
General LLM
#17 · #17 in General LLM
Margin 11.564625850340136
LMArena leaderboard dataset · Oct 13, 2026
#67 · #67 in General LLM
Margin 45.57823129251701
LMArena leaderboard dataset · Oct 13, 2026
Reasoning
#12 · #12 in Reasoning
Margin 8.904109589041099
LMArena leaderboard dataset · Oct 13, 2026
#75 · #75 in Reasoning
Margin 52.054794520547944
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
#41 · #41 in Science
Margin —
Epoch AI benchmarking hub · Apr 17, 2026
Coding
#9 · #9 in Coding
Margin 45.45454545454545
Terminal-Bench Harbor Hub · Oct 6, 2026
#— · Not enough data
Margin —
LMArena leaderboard dataset · Oct 13, 2026
Coding › Agentic
#9 · #9 in Coding › Agentic
Margin 45.45454545454545
Terminal-Bench Harbor Hub · Oct 6, 2026
—
Coding › Web dev
#21 · Was SOTA · Coding › Web dev
Margin 18.691588785046733
LMArena leaderboard dataset · Oct 13, 2026
#85 · #85 in Coding › Web dev
Margin 78.50467289719626
LMArena leaderboard dataset · Oct 13, 2026
Long context
#13 · #13 in Long context
Margin 8.84353741496598
LMArena leaderboard dataset · Oct 13, 2026
#77 · #77 in Long context
Margin 52.38095238095237
LMArena leaderboard dataset · Oct 13, 2026
Vision
#3 · Near-SOTA · Vision
Margin 10.526315789473685
Epoch AI benchmarking hub · Jul 9, 2026
#32 · #32 in Vision
Margin 97.36842105263158
Epoch AI benchmarking hub · Apr 17, 2026
Factuality
#14 · #14 in Factuality
Margin 11.194029850746276
LMArena leaderboard dataset · Oct 13, 2026
#87 · #87 in Factuality
Margin 65.67164179104478
LMArena leaderboard dataset · Oct 13, 2026
Abstraction (ARC)
#3 · #3 in Abstraction (ARC)
Margin —
Epoch AI benchmarking hub · Jul 9, 2026
—
Price per 1M tokens

GPT-5.6 Sol: $4.000000000000001 per 1M blended tokens.

Grok 4.3: $1.5625000000000002 per 1M blended tokens.

Open weights

GPT-5.6 Sol: closed weights.

Grok 4.3: closed weights.

Which to pick

General LLM: As of Oct 14, 2026, GPT-5.6 Sol leads Grok 4.3 in General LLM at #17 against #67.

Reasoning: As of Oct 14, 2026, GPT-5.6 Sol leads Grok 4.3 in Reasoning at #12 against #75.

Science: As of Oct 14, 2026, GPT-5.6 Sol leads Grok 4.3 in Science at #13 against #41.

Coding › Web dev: As of Oct 14, 2026, GPT-5.6 Sol leads Grok 4.3 in Coding › Web dev at #21 against #85.

Long context: As of Oct 14, 2026, GPT-5.6 Sol leads Grok 4.3 in Long context at #13 against #77.

Vision: As of Oct 14, 2026, GPT-5.6 Sol leads Grok 4.3 in Vision at #3 against #32.

Factuality: As of Oct 14, 2026, GPT-5.6 Sol leads Grok 4.3 in Factuality at #14 against #87.

GPT-5.6 Sol · Grok 4.3

GPT-5.6 Sol or Grok 4.3?

As of Oct 14, 2026, GPT-5.6 Sol leads Grok 4.3 in 7 of 7 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, Vision, and Factuality.

GPT-5.6 Sol or Grok 4.3 for General LLM?

As of Oct 14, 2026, GPT-5.6 Sol leads Grok 4.3 in General LLM at #17 against #67.

GPT-5.6 Sol or Grok 4.3 for Reasoning?

As of Oct 14, 2026, GPT-5.6 Sol leads Grok 4.3 in Reasoning at #12 against #75.

GPT-5.6 Sol or Grok 4.3 for Science?

As of Oct 14, 2026, GPT-5.6 Sol leads Grok 4.3 in Science at #13 against #41.