# DeepSeek R1 0528 vs O3 Mini

As of Oct 15, 2026, DeepSeek R1 0528 leads O3 Mini in 2 of 5 shared categories: Reasoning and Long context.

DeepSeek R1 0528: $0.9125000000000001 per 1M blended tokens.

O3 Mini: $1.9250000000000003 per 1M blended tokens.

DeepSeek R1 0528: open weights.

O3 Mini: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, O3 Mini leads DeepSeek R1 0528 in General LLM at #10 against #119.
- Which to pick, Reasoning: As of Oct 15, 2026, DeepSeek R1 0528 leads O3 Mini in Reasoning at #127 against #172.
- Which to pick, Science: As of Oct 15, 2026, O3 Mini leads DeepSeek R1 0528 in Science at #76 against #78.
- Which to pick, Long context: As of Oct 15, 2026, DeepSeek R1 0528 leads O3 Mini in Long context at #150 against #186.
- Which to pick, Abstraction (ARC): As of Oct 15, 2026, O3 Mini leads DeepSeek R1 0528 in Abstraction (ARC) at #51 against #70.

As of Oct 15, 2026, DeepSeek R1 0528 is a former state-of-the-art holder in General LLM (since Aug 7, 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).