Claude Opus 4.8 vs DeepSeek V3.1
As of Oct 14, 2026, Claude Opus 4.8 leads DeepSeek V3.1 in 3 of 3 shared categories: General LLM, Reasoning, and Long context.
Claude Opus 4.8
It used to be. Was SOTA in Coding › Web dev.
DeepSeek V3.1
It used to be. Was SOTA in General LLM.
| Category | Claude Opus 4.8 | DeepSeek V3.1 |
|---|---|---|
| General LLM | #20 · #20 in General LLM Margin 13.605442176870753 LMArena leaderboard dataset · Oct 13, 2026 | #95 · #95 in General LLM Margin 64.62585034013605 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #10 · #10 in Reasoning Margin 7.534246575342465 LMArena leaderboard dataset · Oct 13, 2026 | #103 · #103 in Reasoning Margin 71.23287671232876 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 | #27 · #27 in Science Margin — Epoch AI benchmarking hub · May 28, 2026 | — |
| Coding | #12 · #12 in Coding Margin 59.09090909090909 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Agentic | #12 · #12 in Coding › Agentic Margin 59.09090909090909 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #33 · Was SOTA · Coding › Web dev Margin 29.90654205607477 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #10 · Was SOTA · Long context Margin 6.802721088435391 LMArena leaderboard dataset · Oct 13, 2026 | #99 · #99 in Long context Margin 67.34693877551021 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #13 · #13 in Vision Margin 36.842105263157904 Epoch AI benchmarking hub · May 28, 2026 | — |
| Factuality | #21 · #21 in Factuality Margin 16.417910447761187 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Abstraction (ARC) | #12 · #12 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · May 28, 2026 | — |
Claude Opus 4.8: $10 per 1M blended tokens.
DeepSeek V3.1: price per 1M tokens is unset in the catalog.
Claude Opus 4.8: closed weights.
DeepSeek V3.1: open weights.
General LLM: As of Oct 14, 2026, Claude Opus 4.8 leads DeepSeek V3.1 in General LLM at #20 against #95.
Reasoning: As of Oct 14, 2026, Claude Opus 4.8 leads DeepSeek V3.1 in Reasoning at #10 against #103.
Long context: As of Oct 14, 2026, Claude Opus 4.8 leads DeepSeek V3.1 in Long context at #10 against #99.
Claude Opus 4.8 · DeepSeek V3.1
Claude Opus 4.8 or DeepSeek V3.1?
As of Oct 14, 2026, Claude Opus 4.8 leads DeepSeek V3.1 in 3 of 3 shared categories: General LLM, Reasoning, and Long context.
Claude Opus 4.8 or DeepSeek V3.1 for General LLM?
As of Oct 14, 2026, Claude Opus 4.8 leads DeepSeek V3.1 in General LLM at #20 against #95.
Claude Opus 4.8 or DeepSeek V3.1 for Reasoning?
As of Oct 14, 2026, Claude Opus 4.8 leads DeepSeek V3.1 in Reasoning at #10 against #103.
Claude Opus 4.8 or DeepSeek V3.1 for Long context?
As of Oct 14, 2026, Claude Opus 4.8 leads DeepSeek V3.1 in Long context at #10 against #99.