# GPT-5.4 vs Mimo V2.6 Pro

As of Oct 15, 2026, GPT-5.4 leads Mimo V2.6 Pro in 1 of 5 shared categories: Factuality.

GPT-5.4: $5.625 per 1M blended tokens.

Mimo V2.6 Pro: $0.54375 per 1M blended tokens.

GPT-5.4: closed weights.

Mimo V2.6 Pro: open weights.

- Which to pick, General LLM: As of Oct 15, 2026, Mimo V2.6 Pro leads GPT-5.4 in General LLM at #22 against #28.
- Which to pick, Reasoning: As of Oct 15, 2026, Mimo V2.6 Pro leads GPT-5.4 in Reasoning at #21 against #29.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, Mimo V2.6 Pro leads GPT-5.4 in Coding › Web dev at #16 against #55.
- Which to pick, Long context: As of Oct 15, 2026, Mimo V2.6 Pro leads GPT-5.4 in Long context at #18 against #34.
- Which to pick, Factuality: As of Oct 15, 2026, GPT-5.4 leads Mimo V2.6 Pro in Factuality at #6 against #8.

As of Oct 15, 2026, GPT-5.4 is a former state-of-the-art holder in General LLM (since Apr 10, 2026; sources LMArena Text (style-controlled, overall); methodology v1.0).

As of Oct 15, 2026, Mimo V2.6 Pro is tied for state of the art in General LLM (since Oct 13, 2026; sources LMArena Text (style-controlled, overall); methodology v1.0).