# GPT-5.5 Instant vs GPT-6.1 Sol

As of Oct 14, 2026, GPT-5.5 Instant leads GPT-6.1 Sol in 0 of 5 shared categories.

GPT-5.5 Instant: price per 1M tokens is unset in the catalog.

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

GPT-5.5 Instant: closed weights.

GPT-6.1 Sol: closed weights.

- Which to pick, General LLM: As of Oct 14, 2026, GPT-6.1 Sol leads GPT-5.5 Instant in General LLM at #18 against #31.
- Which to pick, Reasoning: As of Oct 14, 2026, GPT-6.1 Sol leads GPT-5.5 Instant in Reasoning at #15 against #33.
- Which to pick, Science: As of Oct 14, 2026, GPT-6.1 Sol leads GPT-5.5 Instant in Science at #4 against #65.
- Which to pick, Long context: As of Oct 14, 2026, GPT-6.1 Sol leads GPT-5.5 Instant in Long context at #17 against #39.
- Which to pick, Factuality: As of Oct 14, 2026, GPT-6.1 Sol leads GPT-5.5 Instant in Factuality at #29 against #64.

As of Oct 14, 2026, GPT-5.5 Instant is ranked #31 in General LLM (since Oct 14, 2026; sources LMArena Text (style-controlled, overall); methodology v1.0).

As of Oct 14, 2026, GPT-6.1 Sol is tied for state of the art in Vision (since Sep 30, 2026; sources GDP.pdf; methodology v1.0).