# GPT-5.6 Sol vs GPT-6.1 Sol

As of Oct 15, 2026, GPT-5.6 Sol leads GPT-6.1 Sol in 4 of 10 shared categories: General LLM, Reasoning, Long context, and Factuality.

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

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

GPT-5.6 Sol: closed weights.

GPT-6.1 Sol: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, GPT-5.6 Sol leads GPT-6.1 Sol in General LLM at #17 against #18.
- Which to pick, Reasoning: As of Oct 15, 2026, GPT-5.6 Sol leads GPT-6.1 Sol in Reasoning at #12 against #15.
- Which to pick, Science: As of Oct 15, 2026, GPT-6.1 Sol leads GPT-5.6 Sol in Science at #4 against #13.
- Which to pick, Coding: As of Oct 15, 2026, GPT-6.1 Sol leads GPT-5.6 Sol in Coding at #2 against #9.
- Which to pick, Coding › Agentic: As of Oct 15, 2026, GPT-6.1 Sol leads GPT-5.6 Sol in Coding › Agentic at #2 against #9.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, GPT-6.1 Sol leads GPT-5.6 Sol in Coding › Web dev at #4 against #23.
- Which to pick, Long context: As of Oct 15, 2026, GPT-5.6 Sol leads GPT-6.1 Sol in Long context at #13 against #18.
- Which to pick, Vision: As of Oct 15, 2026, GPT-6.1 Sol leads GPT-5.6 Sol in Vision at #1 against #3.
- Which to pick, Factuality: As of Oct 15, 2026, GPT-5.6 Sol leads GPT-6.1 Sol in Factuality at #15 against #33.
- Which to pick, Abstraction (ARC): As of Oct 15, 2026, GPT-6.1 Sol leads GPT-5.6 Sol in Abstraction (ARC) at #1 against #3.

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).

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).