DeepSeek R1 vs GPT-5.5
As of Oct 15, 2026, DeepSeek R1 leads GPT-5.5 in 0 of 5 shared categories.
DeepSeek R1
It used to be. Was SOTA in General LLM.
GPT-5.5
Close. Near-SOTA in Factuality, rank #5.
| Category | DeepSeek R1 | GPT-5.5 |
|---|---|---|
| General LLM | #153 · Was SOTA · General LLM Margin 81.38297872340425 LMArena leaderboard dataset · Oct 13, 2026 | #22 · Was SOTA · General LLM Margin 11.702127659574472 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #151 · Was SOTA · Reasoning Margin 80.85106382978724 LMArena leaderboard dataset · Oct 13, 2026 | #26 · #26 in Reasoning Margin 14.36170212765957 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #90 · #90 in Science Margin — Epoch AI benchmarking hub · Jan 20, 2025 | #30 · #30 in Science Margin — Epoch AI benchmarking hub · Apr 23, 2026 |
| Coding | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Web dev | — | #48 · #48 in Coding › Web dev Margin 37.6 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #160 · Was SOTA · Long context Margin 85.1063829787234 LMArena leaderboard dataset · Oct 13, 2026 | #26 · Was SOTA · Long context Margin 13.829787234042556 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | — | #10 · Was SOTA · Vision Margin 28.94736842105263 Epoch AI benchmarking hub · Apr 23, 2026 |
| Factuality | — | #5 · Near-SOTA · Factuality Margin 3.4883720930232442 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #77 · #77 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jan 20, 2025 | #7 · #7 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Apr 23, 2026 |
DeepSeek R1: $1.15 per 1M blended tokens.
GPT-5.5: $11.25 per 1M blended tokens.
DeepSeek R1: open weights.
GPT-5.5: closed weights.
General LLM: As of Oct 15, 2026, GPT-5.5 leads DeepSeek R1 in General LLM at #22 against #153.
Reasoning: As of Oct 15, 2026, GPT-5.5 leads DeepSeek R1 in Reasoning at #26 against #151.
Science: As of Oct 15, 2026, GPT-5.5 leads DeepSeek R1 in Science at #30 against #90.
Long context: As of Oct 15, 2026, GPT-5.5 leads DeepSeek R1 in Long context at #26 against #160.
Abstraction (ARC): As of Oct 15, 2026, GPT-5.5 leads DeepSeek R1 in Abstraction (ARC) at #7 against #77.
DeepSeek R1 or GPT-5.5?
As of Oct 15, 2026, DeepSeek R1 leads GPT-5.5 in 0 of 5 shared categories.
DeepSeek R1 or GPT-5.5 for General LLM?
As of Oct 15, 2026, GPT-5.5 leads DeepSeek R1 in General LLM at #22 against #153.
DeepSeek R1 or GPT-5.5 for Reasoning?
As of Oct 15, 2026, GPT-5.5 leads DeepSeek R1 in Reasoning at #26 against #151.
DeepSeek R1 or GPT-5.5 for Science?
As of Oct 15, 2026, GPT-5.5 leads DeepSeek R1 in Science at #30 against #90.