Claude Opus 5 vs DeepSeek R1
As of Oct 15, 2026, Claude Opus 5 leads DeepSeek R1 in 5 of 5 shared categories: General LLM, Reasoning, Science, Long context, and Abstraction (ARC).
Claude Opus 5
Close. Near-SOTA in Factuality, rank #4.
DeepSeek R1
It used to be. Was SOTA in General LLM.
| Category | Claude Opus 5 | DeepSeek R1 |
|---|---|---|
| General LLM | #11 · Was SOTA · General LLM Margin 5.851063829787236 LMArena leaderboard dataset · Oct 13, 2026 | #153 · Was SOTA · General LLM Margin 81.38297872340425 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #9 · Was SOTA · Reasoning Margin 5.319148936170208 LMArena leaderboard dataset · Oct 13, 2026 | #151 · Was SOTA · Reasoning Margin 80.85106382978724 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 | #12 · #12 in Science Margin — Epoch AI benchmarking hub · Jul 24, 2026 | #90 · #90 in Science Margin — Epoch AI benchmarking hub · Jan 20, 2025 |
| Coding | #4 · #4 in Coding Margin 22.727272727272734 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Agentic | #4 · #4 in Coding › Agentic Margin 22.727272727272734 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #6 · Near-SOTA · Coding › Web dev Margin 4 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #9 · Was SOTA · Long context Margin 4.7872340425531945 LMArena leaderboard dataset · Oct 13, 2026 | #160 · Was SOTA · Long context Margin 85.1063829787234 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #12 · #12 in Vision Margin 36.8421052631579 Epoch AI benchmarking hub · Jul 24, 2026 | — |
| Factuality | #4 · Near-SOTA · Factuality Margin 2.9069767441860535 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Abstraction (ARC) | #3 · #3 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 24, 2026 | #77 · #77 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jan 20, 2025 |
Claude Opus 5: $10 per 1M blended tokens.
DeepSeek R1: $1.15 per 1M blended tokens.
Claude Opus 5: closed weights.
DeepSeek R1: open weights.
General LLM: As of Oct 15, 2026, Claude Opus 5 leads DeepSeek R1 in General LLM at #11 against #153.
Reasoning: As of Oct 15, 2026, Claude Opus 5 leads DeepSeek R1 in Reasoning at #9 against #151.
Science: As of Oct 15, 2026, Claude Opus 5 leads DeepSeek R1 in Science at #12 against #90.
Long context: As of Oct 15, 2026, Claude Opus 5 leads DeepSeek R1 in Long context at #9 against #160.
Abstraction (ARC): As of Oct 15, 2026, Claude Opus 5 leads DeepSeek R1 in Abstraction (ARC) at #3 against #77.
Claude Opus 5 or DeepSeek R1?
As of Oct 15, 2026, Claude Opus 5 leads DeepSeek R1 in 5 of 5 shared categories: General LLM, Reasoning, Science, Long context, and Abstraction (ARC).
Claude Opus 5 or DeepSeek R1 for General LLM?
As of Oct 15, 2026, Claude Opus 5 leads DeepSeek R1 in General LLM at #11 against #153.
Claude Opus 5 or DeepSeek R1 for Reasoning?
As of Oct 15, 2026, Claude Opus 5 leads DeepSeek R1 in Reasoning at #9 against #151.
Claude Opus 5 or DeepSeek R1 for Science?
As of Oct 15, 2026, Claude Opus 5 leads DeepSeek R1 in Science at #12 against #90.