# DeepSeek R1 0528 vs GPT-5.5

As of Oct 14, 2026, DeepSeek R1 0528 leads GPT-5.5 in 0 of 5 shared categories.

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

GPT-5.5: $11.25 per 1M blended tokens.

DeepSeek R1 0528: open weights.

GPT-5.5: closed weights.

- Which to pick, General LLM: As of Oct 14, 2026, GPT-5.5 leads DeepSeek R1 0528 in General LLM at #21 against #92.
- Which to pick, Reasoning: As of Oct 14, 2026, GPT-5.5 leads DeepSeek R1 0528 in Reasoning at #25 against #98.
- Which to pick, Science: As of Oct 14, 2026, GPT-5.5 leads DeepSeek R1 0528 in Science at #30 against #78.
- Which to pick, Long context: As of Oct 14, 2026, GPT-5.5 leads DeepSeek R1 0528 in Long context at #23 against #114.
- Which to pick, Abstraction (ARC): As of Oct 14, 2026, GPT-5.5 leads DeepSeek R1 0528 in Abstraction (ARC) at #7 against #70.

As of Oct 14, 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 14, 2026, GPT-5.5 is a former state-of-the-art holder in General LLM (since Apr 28, 2026; sources LMArena Text (style-controlled, overall); methodology v1.0).