Compare · 2026-10-14

Claude Opus 4.8 vs DeepSeek V3

As of Oct 14, 2026, Claude Opus 4.8 leads DeepSeek V3 in 2 of 3 shared categories: Science and Long context.

CategoryClaude Opus 4.8DeepSeek V3
General LLM
#20 · #20 in General LLM
Margin 13.605442176870753
LMArena leaderboard dataset · Oct 13, 2026
#11 · #11 in General LLM
Margin —
LMArena leaderboard dataset · Mar 17, 2025
Reasoning
#10 · #10 in Reasoning
Margin 7.534246575342465
LMArena leaderboard dataset · Oct 13, 2026
#— · Not enough data
Margin —
LMArena leaderboard dataset · Feb 11, 2025
Math
#— · Not enough data
Margin —
LMArena leaderboard dataset · Oct 13, 2026
#— · Not enough data
Margin —
LMArena leaderboard dataset · Jan 22, 2025
Science
#27 · #27 in Science
Margin —
Epoch AI benchmarking hub · May 28, 2026
#114 · #114 in Science
Margin —
Epoch AI benchmarking hub · Dec 26, 2024
Coding
#12 · #12 in Coding
Margin 59.09090909090909
Terminal-Bench Harbor Hub · Oct 6, 2026
#— · Not enough data
Margin —
LMArena leaderboard dataset · Mar 11, 2025
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
#144 · #144 in Long context
Margin 97.95918367346938
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
—
Price per 1M tokens

Claude Opus 4.8: $10 per 1M blended tokens.

DeepSeek V3: price per 1M tokens is unset in the catalog.

Open weights

Claude Opus 4.8: closed weights.

DeepSeek V3: open weights.

Which to pick

General LLM: As of Oct 14, 2026, DeepSeek V3 leads Claude Opus 4.8 in General LLM at #11 against #20.

Science: As of Oct 14, 2026, Claude Opus 4.8 leads DeepSeek V3 in Science at #27 against #114.

Long context: As of Oct 14, 2026, Claude Opus 4.8 leads DeepSeek V3 in Long context at #10 against #144.

Claude Opus 4.8 · DeepSeek V3

Claude Opus 4.8 or DeepSeek V3?

As of Oct 14, 2026, Claude Opus 4.8 leads DeepSeek V3 in 2 of 3 shared categories: Science and Long context.

Claude Opus 4.8 or DeepSeek V3 for General LLM?

As of Oct 14, 2026, DeepSeek V3 leads Claude Opus 4.8 in General LLM at #11 against #20.

Claude Opus 4.8 or DeepSeek V3 for Science?

As of Oct 14, 2026, Claude Opus 4.8 leads DeepSeek V3 in Science at #27 against #114.

Claude Opus 4.8 or DeepSeek V3 for Long context?

As of Oct 14, 2026, Claude Opus 4.8 leads DeepSeek V3 in Long context at #10 against #144.