Claude Opus 5.5 vs DeepSeek V3.2 Exp
As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Exp 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 Exp
It used to be. Was SOTA in Reasoning.
| Category | Claude Opus 5.5 | DeepSeek V3.2 Exp |
|---|---|---|
| General LLM | #2 · Near-SOTA · General LLM Margin 1.3605442176870781 LMArena leaderboard dataset · Oct 13, 2026 | #91 · #91 in General LLM Margin 61.904761904761905 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #1 · Co-SOTA · Reasoning Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #81 · #81 in Reasoning Margin 56.16438356164384 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 | #98 · #98 in Coding › Web dev Margin 90.65420560747664 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #1 · Co-SOTA · Long context Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #81 · Was SOTA · Long context Margin 55.10204081632653 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 | #73 · #73 in Factuality Margin 55.223880597014926 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 Exp: $0.30500000000000005 per 1M blended tokens.
Claude Opus 5.5: closed weights.
DeepSeek V3.2 Exp: open weights.
General LLM: As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Exp in General LLM at #2 against #91.
Reasoning: As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Exp in Reasoning at #1 against #81.
Coding › Web dev: As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Exp in Coding › Web dev at #1 against #98.
Long context: As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Exp in Long context at #1 against #81.
Factuality: As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Exp in Factuality at #1 against #73.
Claude Opus 5.5 · DeepSeek V3.2 Exp
Claude Opus 5.5 or DeepSeek V3.2 Exp?
As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Exp in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Opus 5.5 or DeepSeek V3.2 Exp for General LLM?
As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Exp in General LLM at #2 against #91.
Claude Opus 5.5 or DeepSeek V3.2 Exp for Reasoning?
As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Exp in Reasoning at #1 against #81.
Claude Opus 5.5 or DeepSeek V3.2 Exp for Coding › Web dev?
As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Exp in Coding › Web dev at #1 against #98.