Claude Opus 5.5 vs DeepSeek V3.2 Exp Thinking
As of Oct 15, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Exp Thinking in 4 of 4 shared categories: General LLM, Reasoning, Long context, and Factuality.
Claude Opus 5.5
Yes. SOTA in Reasoning (tied), Coding (tied), Coding › Agentic (tied), Coding › Web dev, Long context (tied), and Factuality (tied).
DeepSeek V3.2 Exp Thinking
#68 Best current rank: #68 in Factuality, as of Oct 15, 2026.
| Category | Claude Opus 5.5 | DeepSeek V3.2 Exp Thinking |
|---|---|---|
| General LLM | #2 · Near-SOTA · General LLM Margin 1.0638297872340416 LMArena leaderboard dataset · Oct 13, 2026 | #111 · #111 in General LLM Margin 59.04255319148936 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #1 · Co-SOTA · Reasoning Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #109 · #109 in Reasoning Margin 58.51063829787234 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 | — |
| Long context | #1 · Co-SOTA · Long context Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #111 · #111 in Long context Margin 59.04255319148936 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 | #68 · #68 in Factuality Margin 40.116279069767444 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 Thinking: price per 1M tokens is unset in the catalog.
Claude Opus 5.5: closed weights.
DeepSeek V3.2 Exp Thinking: open weights.
General LLM: As of Oct 15, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Exp Thinking in General LLM at #2 against #111.
Reasoning: As of Oct 15, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Exp Thinking in Reasoning at #1 against #109.
Long context: As of Oct 15, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Exp Thinking in Long context at #1 against #111.
Factuality: As of Oct 15, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Exp Thinking in Factuality at #1 against #68.
Claude Opus 5.5 · DeepSeek V3.2 Exp Thinking
Claude Opus 5.5 or DeepSeek V3.2 Exp Thinking?
As of Oct 15, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Exp Thinking in 4 of 4 shared categories: General LLM, Reasoning, Long context, and Factuality.
Claude Opus 5.5 or DeepSeek V3.2 Exp Thinking for General LLM?
As of Oct 15, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Exp Thinking in General LLM at #2 against #111.
Claude Opus 5.5 or DeepSeek V3.2 Exp Thinking for Reasoning?
As of Oct 15, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Exp Thinking in Reasoning at #1 against #109.
Claude Opus 5.5 or DeepSeek V3.2 Exp Thinking for Long context?
As of Oct 15, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Exp Thinking in Long context at #1 against #111.