# GPT-4.5 Preview vs GPT-5.6 Sol

As of Oct 14, 2026, GPT-4.5 Preview leads GPT-5.6 Sol in 0 of 5 shared categories.

GPT-4.5 Preview: price per 1M tokens is unset in the catalog.

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

GPT-4.5 Preview: closed weights.

GPT-5.6 Sol: closed weights.

- Which to pick, General LLM: As of Oct 14, 2026, GPT-5.6 Sol leads GPT-4.5 Preview in General LLM at #17 against #62.
- Which to pick, Reasoning: As of Oct 14, 2026, GPT-5.6 Sol leads GPT-4.5 Preview in Reasoning at #12 against #93.
- Which to pick, Science: As of Oct 14, 2026, GPT-5.6 Sol leads GPT-4.5 Preview in Science at #13 against #92.
- Which to pick, Long context: As of Oct 14, 2026, GPT-5.6 Sol leads GPT-4.5 Preview in Long context at #13 against #76.
- Which to pick, Abstraction (ARC): As of Oct 14, 2026, GPT-5.6 Sol leads GPT-4.5 Preview in Abstraction (ARC) at #3 against #83.

As of Oct 14, 2026, GPT-4.5 Preview is a former state-of-the-art holder in General LLM (since Oct 17, 2025; sources LMArena Text (style-controlled, overall); 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).