# GPT-5.5 Instant vs GPT-6 Sol

As of Oct 14, 2026, GPT-5.5 Instant leads GPT-6 Sol in 4 of 5 shared categories: General LLM, Reasoning, Long context, and Factuality.

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

GPT-6 Sol: $4.000000000000001 per 1M blended tokens.

GPT-5.5 Instant: closed weights.

GPT-6 Sol: closed weights.

- Which to pick, General LLM: As of Oct 14, 2026, GPT-5.5 Instant leads GPT-6 Sol in General LLM at #31 against #43.
- Which to pick, Reasoning: As of Oct 14, 2026, GPT-5.5 Instant leads GPT-6 Sol in Reasoning at #33 against #39.
- Which to pick, Science: As of Oct 14, 2026, GPT-6 Sol leads GPT-5.5 Instant in Science at #8 against #65.
- Which to pick, Long context: As of Oct 14, 2026, GPT-5.5 Instant leads GPT-6 Sol in Long context at #39 against #49.
- Which to pick, Factuality: As of Oct 14, 2026, GPT-5.5 Instant leads GPT-6 Sol in Factuality at #64 against #70.

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 Sol is ranked #5 in Coding (since Oct 14, 2026; sources Terminal-Bench 4.0; methodology v1.0).