Claude Opus 5.5 vs DeepSeek V4 Pro High
As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V4 Pro High 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 V4 Pro High
#28 Best current rank: #28 in Coding › Web dev, as of Oct 14, 2026.
| Category | Claude Opus 5.5 | DeepSeek V4 Pro High |
|---|---|---|
| General LLM | #2 · Near-SOTA · General LLM Margin 1.3605442176870781 LMArena leaderboard dataset · Oct 13, 2026 | #38 · #38 in General LLM Margin 25.850340136054427 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #1 · Co-SOTA · Reasoning Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #41 · #41 in Reasoning Margin 28.76712328767124 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 | #28 · #28 in Coding › Web dev Margin 25.233644859813083 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #1 · Co-SOTA · Long context Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #40 · #40 in Long context Margin 27.21088435374149 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 | #43 · #43 in Factuality Margin 32.83582089552239 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 V4 Pro High: price per 1M tokens is unset in the catalog.
Claude Opus 5.5: closed weights.
DeepSeek V4 Pro High: open weights.
General LLM: As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V4 Pro High in General LLM at #2 against #38.
Reasoning: As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V4 Pro High in Reasoning at #1 against #41.
Coding › Web dev: As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V4 Pro High in Coding › Web dev at #1 against #28.
Long context: As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V4 Pro High in Long context at #1 against #40.
Factuality: As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V4 Pro High in Factuality at #1 against #43.
Claude Opus 5.5 · DeepSeek V4 Pro High
Claude Opus 5.5 or DeepSeek V4 Pro High?
As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V4 Pro High in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Opus 5.5 or DeepSeek V4 Pro High for General LLM?
As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V4 Pro High in General LLM at #2 against #38.
Claude Opus 5.5 or DeepSeek V4 Pro High for Reasoning?
As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V4 Pro High in Reasoning at #1 against #41.
Claude Opus 5.5 or DeepSeek V4 Pro High for Coding › Web dev?
As of Oct 14, 2026, Claude Opus 5.5 leads DeepSeek V4 Pro High in Coding › Web dev at #1 against #28.