# Claude Opus 5.5 vs GPT-5.6 Sol

As of Oct 14, 2026, Claude Opus 5.5 leads GPT-5.6 Sol in 8 of 10 shared categories: General LLM, Reasoning, Coding, Coding › Agentic, Coding › Web dev, Long context, Factuality, and Abstraction (ARC).

Claude Opus 5.5: $8.000000000000002 per 1M blended tokens.

GPT-5.6 Sol: $8.000000000000002 per 1M blended tokens.

Claude Opus 5.5: closed weights.

GPT-5.6 Sol: closed weights.

- Which to pick, General LLM: As of Oct 14, 2026, Claude Opus 5.5 leads GPT-5.6 Sol in General LLM at #2 against #17.
- Which to pick, Reasoning: As of Oct 14, 2026, Claude Opus 5.5 leads GPT-5.6 Sol in Reasoning at #1 against #12.
- Which to pick, Science: As of Oct 14, 2026, GPT-5.6 Sol leads Claude Opus 5.5 in Science at #13 against #31.
- Which to pick, Coding: As of Oct 14, 2026, Claude Opus 5.5 leads GPT-5.6 Sol in Coding at #1 against #9.
- Which to pick, Coding › Agentic: As of Oct 14, 2026, Claude Opus 5.5 leads GPT-5.6 Sol in Coding › Agentic at #1 against #9.
- Which to pick, Coding › Web dev: As of Oct 14, 2026, Claude Opus 5.5 leads GPT-5.6 Sol in Coding › Web dev at #1 against #21.
- Which to pick, Long context: As of Oct 14, 2026, Claude Opus 5.5 leads GPT-5.6 Sol in Long context at #1 against #13.
- Which to pick, Vision: As of Oct 14, 2026, GPT-5.6 Sol leads Claude Opus 5.5 in Vision at #3 against #4.
- Which to pick, Factuality: As of Oct 14, 2026, Claude Opus 5.5 leads GPT-5.6 Sol in Factuality at #1 against #14.
- Which to pick, Abstraction (ARC): As of Oct 14, 2026, Claude Opus 5.5 leads GPT-5.6 Sol in Abstraction (ARC) at #1 against #3.

As of Oct 14, 2026, Claude Opus 5.5 is tied for state of the art in Reasoning (since Oct 2, 2026; sources LMArena Text (style-controlled, hard prompts); methodology v1.0).

As of Oct 14, 2026, GPT-5.6 Sol is near state of the art, rank #3 in Vision (since Oct 14, 2026; sources GDP.pdf; methodology v1.0).