Claude Sonnet 5.5 vs DeepSeek V3.2 Exp
As of Oct 14, 2026, Claude Sonnet 5.5 leads DeepSeek V3.2 Exp in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Sonnet 5.5
Yes. SOTA in co-SOTA in Coding, co-SOTA in Coding › Agentic and co-SOTA in Vision.
DeepSeek V3.2 Exp
It used to be. Was SOTA in Reasoning.
| Category | Claude Sonnet 5.5 | DeepSeek V3.2 Exp |
|---|---|---|
| General LLM | #27 · #27 in General LLM Margin 18.367346938775512 LMArena leaderboard dataset · Oct 13, 2026 | #91 · #91 in General LLM Margin 61.904761904761905 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #18 · #18 in Reasoning Margin 13.013698630136986 LMArena leaderboard dataset · Oct 13, 2026 | #81 · #81 in Reasoning Margin 56.16438356164384 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #4 · #4 in Math Margin 6.666666666666671 Epoch AI benchmarking hub · Sep 28, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #3 · #3 in Science Margin — Epoch AI benchmarking hub · Sep 28, 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 | #3 · Near-SOTA · Coding › Web dev Margin 1.8691588785046775 LMArena leaderboard dataset · Oct 13, 2026 | #98 · #98 in Coding › Web dev Margin 90.65420560747664 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #11 · #11 in Long context Margin 7.482993197278915 LMArena leaderboard dataset · Oct 13, 2026 | #81 · Was SOTA · Long context Margin 55.10204081632653 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #1 · Co-SOTA · Vision Margin 0 Epoch AI benchmarking hub · Sep 28, 2026 | — |
| Factuality | #16 · #16 in Factuality Margin 12.68656716417911 LMArena leaderboard dataset · Oct 13, 2026 | #73 · #73 in Factuality Margin 55.223880597014926 LMArena leaderboard dataset · Oct 13, 2026 |
Claude Sonnet 5.5: $4.000000000000001 per 1M blended tokens.
DeepSeek V3.2 Exp: $0.30500000000000005 per 1M blended tokens.
Claude Sonnet 5.5: closed weights.
DeepSeek V3.2 Exp: open weights.
General LLM: As of Oct 14, 2026, Claude Sonnet 5.5 leads DeepSeek V3.2 Exp in General LLM at #27 against #91.
Reasoning: As of Oct 14, 2026, Claude Sonnet 5.5 leads DeepSeek V3.2 Exp in Reasoning at #18 against #81.
Coding › Web dev: As of Oct 14, 2026, Claude Sonnet 5.5 leads DeepSeek V3.2 Exp in Coding › Web dev at #3 against #98.
Long context: As of Oct 14, 2026, Claude Sonnet 5.5 leads DeepSeek V3.2 Exp in Long context at #11 against #81.
Factuality: As of Oct 14, 2026, Claude Sonnet 5.5 leads DeepSeek V3.2 Exp in Factuality at #16 against #73.
Claude Sonnet 5.5 · DeepSeek V3.2 Exp
Claude Sonnet 5.5 or DeepSeek V3.2 Exp?
As of Oct 14, 2026, Claude Sonnet 5.5 leads DeepSeek V3.2 Exp in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Sonnet 5.5 or DeepSeek V3.2 Exp for General LLM?
As of Oct 14, 2026, Claude Sonnet 5.5 leads DeepSeek V3.2 Exp in General LLM at #27 against #91.
Claude Sonnet 5.5 or DeepSeek V3.2 Exp for Reasoning?
As of Oct 14, 2026, Claude Sonnet 5.5 leads DeepSeek V3.2 Exp in Reasoning at #18 against #81.
Claude Sonnet 5.5 or DeepSeek V3.2 Exp for Coding › Web dev?
As of Oct 14, 2026, Claude Sonnet 5.5 leads DeepSeek V3.2 Exp in Coding › Web dev at #3 against #98.