# DeepSeek V3 vs Llama 3.1 405B Instruct

As of Oct 15, 2026, DeepSeek V3 leads Llama 3.1 405B Instruct in 1 of 2 shared categories: Science.

DeepSeek V3: price per 1M tokens is unset in the catalog.

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

DeepSeek V3: open weights.

Llama 3.1 405B Instruct: open weights.

- Which to pick, General LLM: As of Oct 15, 2026, Llama 3.1 405B Instruct leads DeepSeek V3 in General LLM at #5 against #12.
- Which to pick, Science: As of Oct 15, 2026, DeepSeek V3 leads Llama 3.1 405B Instruct in Science at #114 against #124.

As of Oct 15, 2026, DeepSeek V3 is a former state-of-the-art holder in General LLM (since Jan 5, 2025; 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).