# GPT-5.4 vs GPT-6.1 Sol

As of Oct 15, 2026, GPT-5.4 leads GPT-6.1 Sol in 1 of 7 shared categories: Factuality.

GPT-5.4: $5.625 per 1M blended tokens.

GPT-6.1 Sol: $4.000000000000001 per 1M blended tokens.

GPT-5.4: closed weights.

GPT-6.1 Sol: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, GPT-6.1 Sol leads GPT-5.4 in General LLM at #18 against #28.
- Which to pick, Reasoning: As of Oct 15, 2026, GPT-6.1 Sol leads GPT-5.4 in Reasoning at #15 against #29.
- Which to pick, Science: As of Oct 15, 2026, GPT-6.1 Sol leads GPT-5.4 in Science at #4 against #16.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, GPT-6.1 Sol leads GPT-5.4 in Coding › Web dev at #4 against #55.
- Which to pick, Long context: As of Oct 15, 2026, GPT-6.1 Sol leads GPT-5.4 in Long context at #17 against #34.
- Which to pick, Factuality: As of Oct 15, 2026, GPT-5.4 leads GPT-6.1 Sol in Factuality at #6 against #29.
- Which to pick, Abstraction (ARC): As of Oct 15, 2026, GPT-6.1 Sol leads GPT-5.4 in Abstraction (ARC) at #1 against #10.

As of Oct 15, 2026, GPT-5.4 is a former state-of-the-art holder in General LLM (since Apr 10, 2026; sources LMArena Text (style-controlled, overall); methodology v1.0).

As of Oct 15, 2026, GPT-6.1 Sol is tied for state of the art in Vision (since Sep 30, 2026; sources GDP.pdf; methodology v1.0).