# GPT-5.5 vs Mimo V2.5 Pro

As of Oct 14, 2026, GPT-5.5 leads Mimo V2.5 Pro in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.

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

Mimo V2.5 Pro: $0.54375 per 1M blended tokens.

GPT-5.5: closed weights.

Mimo V2.5 Pro: open weights.

- Which to pick, General LLM: As of Oct 14, 2026, GPT-5.5 leads Mimo V2.5 Pro in General LLM at #21 against #34.
- Which to pick, Reasoning: As of Oct 14, 2026, GPT-5.5 leads Mimo V2.5 Pro in Reasoning at #25 against #31.
- Which to pick, Coding › Web dev: As of Oct 14, 2026, GPT-5.5 leads Mimo V2.5 Pro in Coding › Web dev at #44 against #51.
- Which to pick, Long context: As of Oct 14, 2026, GPT-5.5 leads Mimo V2.5 Pro in Long context at #23 against #24.
- Which to pick, Factuality: As of Oct 14, 2026, GPT-5.5 leads Mimo V2.5 Pro in Factuality at #5 against #28.

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, Mimo V2.5 Pro is ranked #24 in Long context (since Oct 14, 2026; sources LMArena Text (style-controlled, longer query); methodology v1.0).