Claude Opus 5.5 vs DeepSeek V3.2
As of Oct 15, 2026, Claude Opus 5.5 leads DeepSeek V3.2 in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Opus 5.5
Yes. SOTA in co-SOTA in Reasoning, co-SOTA in Coding, co-SOTA in Coding › Agentic, Coding › Web dev, co-SOTA in Long context and co-SOTA in Factuality.
DeepSeek V3.2
#71 Best current rank: #71 in Factuality, as of Oct 15, 2026.
| Category | Claude Opus 5.5 | DeepSeek V3.2 |
|---|---|---|
| General LLM | #2 · Near-SOTA · General LLM Margin 1.3605442176870781 LMArena leaderboard dataset · Oct 13, 2026 | #85 · #85 in General LLM Margin 57.82312925170068 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #1 · Co-SOTA · Reasoning Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #79 · #79 in Reasoning Margin 54.794520547945204 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 | #31 · #31 in Science Margin — Epoch AI benchmarking hub · Sep 22, 2026 | — |
| Coding | #1 · Co-SOTA · Coding Margin 0 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Agentic | #1 · Co-SOTA · Coding › Agentic Margin 0 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #1 · SOTA · Coding › Web dev Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #93 · #93 in Coding › Web dev Margin 85.98130841121495 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #1 · Co-SOTA · Long context Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #82 · #82 in Long context Margin 55.78231292517007 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #4 · Near-SOTA · Vision Margin 13.15789473684211 Epoch AI benchmarking hub · Sep 22, 2026 | — |
| Factuality | #1 · Co-SOTA · Factuality Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #71 · #71 in Factuality Margin 53.7313432835821 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 22, 2026 | — |
Claude Opus 5.5: $8.000000000000002 per 1M blended tokens.
DeepSeek V3.2: $0.39425 per 1M blended tokens.
Claude Opus 5.5: closed weights.
DeepSeek V3.2: open weights.
General LLM: As of Oct 15, 2026, Claude Opus 5.5 leads DeepSeek V3.2 in General LLM at #2 against #85.
Reasoning: As of Oct 15, 2026, Claude Opus 5.5 leads DeepSeek V3.2 in Reasoning at #1 against #79.
Coding › Web dev: As of Oct 15, 2026, Claude Opus 5.5 leads DeepSeek V3.2 in Coding › Web dev at #1 against #93.
Long context: As of Oct 15, 2026, Claude Opus 5.5 leads DeepSeek V3.2 in Long context at #1 against #82.
Factuality: As of Oct 15, 2026, Claude Opus 5.5 leads DeepSeek V3.2 in Factuality at #1 against #71.
Claude Opus 5.5 · DeepSeek V3.2
Claude Opus 5.5 or DeepSeek V3.2?
As of Oct 15, 2026, Claude Opus 5.5 leads DeepSeek V3.2 in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Opus 5.5 or DeepSeek V3.2 for General LLM?
As of Oct 15, 2026, Claude Opus 5.5 leads DeepSeek V3.2 in General LLM at #2 against #85.
Claude Opus 5.5 or DeepSeek V3.2 for Reasoning?
As of Oct 15, 2026, Claude Opus 5.5 leads DeepSeek V3.2 in Reasoning at #1 against #79.
Claude Opus 5.5 or DeepSeek V3.2 for Coding › Web dev?
As of Oct 15, 2026, Claude Opus 5.5 leads DeepSeek V3.2 in Coding › Web dev at #1 against #93.