# DeepSeek V3 vs O3 Mini

As of Oct 15, 2026, DeepSeek V3 leads O3 Mini in 1 of 3 shared categories: Long context.

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

O3 Mini: $1.9250000000000003 per 1M blended tokens.

DeepSeek V3: open weights.

O3 Mini: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, O3 Mini leads DeepSeek V3 in General LLM at #10 against #12.
- Which to pick, Science: As of Oct 15, 2026, O3 Mini leads DeepSeek V3 in Science at #76 against #114.
- Which to pick, Long context: As of Oct 15, 2026, DeepSeek V3 leads O3 Mini in Long context at #185 against #186.

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, O3 Mini is a former state-of-the-art holder in Reasoning (since Feb 9, 2025; sources LMArena Text (style-controlled, hard prompts); methodology v1.0).