# Claude Opus 5 vs GPT-5.6 Sol

As of Oct 15, 2026, Claude Opus 5 leads GPT-5.6 Sol in 8 of 10 shared categories: General LLM, Reasoning, Science, Coding, Coding › Agentic, Coding › Web dev, Long context, and Factuality.

Claude Opus 5: $10 per 1M blended tokens.

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

Claude Opus 5: closed weights.

GPT-5.6 Sol: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Claude Opus 5 leads GPT-5.6 Sol in General LLM at #11 against #17.
- Which to pick, Reasoning: As of Oct 15, 2026, Claude Opus 5 leads GPT-5.6 Sol in Reasoning at #9 against #12.
- Which to pick, Science: As of Oct 15, 2026, Claude Opus 5 leads GPT-5.6 Sol in Science at #12 against #13.
- Which to pick, Coding: As of Oct 15, 2026, Claude Opus 5 leads GPT-5.6 Sol in Coding at #4 against #9.
- Which to pick, Coding › Agentic: As of Oct 15, 2026, Claude Opus 5 leads GPT-5.6 Sol in Coding › Agentic at #4 against #9.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, Claude Opus 5 leads GPT-5.6 Sol in Coding › Web dev at #6 against #23.
- Which to pick, Long context: As of Oct 15, 2026, Claude Opus 5 leads GPT-5.6 Sol in Long context at #9 against #13.
- Which to pick, Vision: As of Oct 15, 2026, GPT-5.6 Sol leads Claude Opus 5 in Vision at #3 against #12.
- Which to pick, Factuality: As of Oct 15, 2026, Claude Opus 5 leads GPT-5.6 Sol in Factuality at #4 against #15.
- Which to pick, Abstraction (ARC): As of Oct 15, 2026, Claude Opus 5 and GPT-5.6 Sol share #3 in Abstraction (ARC).

As of Oct 15, 2026, Claude Opus 5 is near state of the art, rank #4 in Factuality (since Oct 15, 2026; sources LMArena Text factuality; methodology v1.0).

As of Oct 15, 2026, GPT-5.6 Sol is near state of the art, rank #3 in Vision (since Oct 15, 2026; sources GDP.pdf; methodology v1.0).