Claude Opus 5.5 vs DeepSeek V3.2 Thinking
As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Thinking 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 Thinking
#79 Best current rank: #79 in Long context, as of Oct 14, 2026.
| Category | Claude Opus 5.5 | DeepSeek V3.2 Thinking |
|---|---|---|
| General LLM | #2 · Near-SOTA · General LLM Margin 1.3605442176870781 LMArena leaderboard dataset · Oct 13, 2026 | #89 · #89 in General LLM Margin 60.54421768707483 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #1 · Co-SOTA · Reasoning Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #85 · #85 in Reasoning Margin 58.9041095890411 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 | #81 · #81 in Coding › Web dev Margin 74.76635514018692 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #1 · Co-SOTA · Long context Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #79 · #79 in Long context Margin 53.74149659863946 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 | #79 · #79 in Factuality Margin 59.70149253731344 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 Thinking: price per 1M tokens is unset in the catalog.
Claude Opus 5.5: closed weights.
DeepSeek V3.2 Thinking: open weights.
General LLM: As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Thinking in General LLM at #2 against #89.
Reasoning: As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Thinking in Reasoning at #1 against #85.
Coding › Web dev: As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Thinking in Coding › Web dev at #1 against #81.
Long context: As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Thinking in Long context at #1 against #79.
Factuality: As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Thinking in Factuality at #1 against #79.
Claude Opus 5.5 · DeepSeek V3.2 Thinking
Claude Opus 5.5 or DeepSeek V3.2 Thinking?
As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Thinking in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Opus 5.5 or DeepSeek V3.2 Thinking for General LLM?
As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Thinking in General LLM at #2 against #89.
Claude Opus 5.5 or DeepSeek V3.2 Thinking for Reasoning?
As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Thinking in Reasoning at #1 against #85.
Claude Opus 5.5 or DeepSeek V3.2 Thinking for Coding › Web dev?
As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Thinking in Coding › Web dev at #1 against #81.