# GPT-4O Mini vs Llama 3.1 405B Instruct

As of Oct 15, 2026, GPT-4O Mini leads Llama 3.1 405B Instruct in 0 of 2 shared categories.

GPT-4O Mini: $0.26249999999999996 per 1M blended tokens.

Llama 3.1 405B Instruct: price per 1M tokens is unset in the catalog.

GPT-4O Mini: closed weights.

Llama 3.1 405B Instruct: open weights.

- Which to pick, General LLM: As of Oct 15, 2026, Llama 3.1 405B Instruct leads GPT-4O Mini in General LLM at #5 against #11.
- Which to pick, Science: As of Oct 15, 2026, Llama 3.1 405B Instruct leads GPT-4O Mini in Science at #124 against #161.

As of Oct 15, 2026, GPT-4O Mini is ranked #11 in General LLM (since Oct 15, 2026; sources LMArena Text (style-controlled, overall); methodology v1.0).

As of Oct 15, 2026, Llama 3.1 405B Instruct is a former state-of-the-art holder in General LLM (since Aug 28, 2024; sources LMArena Text (style-controlled, overall); methodology v1.0).