# GPT-5.5 vs Trinity Large Thinking

As of Oct 14, 2026, GPT-5.5 leads Trinity Large Thinking in 4 of 4 shared categories: General LLM, Reasoning, Coding › Web dev, and Factuality.

GPT-5.5: $11.25 per 1M blended tokens.

Trinity Large Thinking: $0.3875 per 1M blended tokens.

GPT-5.5: closed weights.

Trinity Large Thinking: open weights.

- Which to pick, General LLM: As of Oct 14, 2026, GPT-5.5 leads Trinity Large Thinking in General LLM at #21 against #145.
- Which to pick, Reasoning: As of Oct 14, 2026, GPT-5.5 leads Trinity Large Thinking in Reasoning at #25 against #142.
- Which to pick, Coding › Web dev: As of Oct 14, 2026, GPT-5.5 leads Trinity Large Thinking in Coding › Web dev at #44 against #103.
- Which to pick, Factuality: As of Oct 14, 2026, GPT-5.5 leads Trinity Large Thinking in Factuality at #5 against #119.

As of Oct 14, 2026, GPT-5.5 is a former state-of-the-art holder in General LLM (since Apr 28, 2026; sources LMArena Text (style-controlled, overall); methodology v1.0).

As of Oct 14, 2026, Trinity Large Thinking is ranked #103 in Coding › Web dev (since Oct 14, 2026; sources LMArena WebDev; methodology v1.0).