Claude Opus 4.8 vs DeepSeek V4 Flash High Preview
As of Oct 14, 2026, Claude Opus 4.8 leads DeepSeek V4 Flash High Preview in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Opus 4.8
It used to be. Was SOTA in Coding › Web dev.
DeepSeek V4 Flash High Preview
#65 Best current rank: #65 in Coding › Web dev, as of Oct 14, 2026.
| Category | Claude Opus 4.8 | DeepSeek V4 Flash High Preview |
|---|---|---|
| General LLM | #20 · #20 in General LLM Margin 13.605442176870753 LMArena leaderboard dataset · Oct 13, 2026 | #71 · #71 in General LLM Margin 48.29931972789116 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #10 · #10 in Reasoning Margin 7.534246575342465 LMArena leaderboard dataset · Oct 13, 2026 | #74 · #74 in Reasoning Margin 51.36986301369863 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 | #65 · #65 in Coding › Web dev Margin 59.81308411214953 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #10 · Was SOTA · Long context Margin 6.802721088435391 LMArena leaderboard dataset · Oct 13, 2026 | #68 · #68 in Long context Margin 46.25850340136054 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 | #77 · #77 in Factuality Margin 58.208955223880594 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 V4 Flash High Preview: price per 1M tokens is unset in the catalog.
Claude Opus 4.8: closed weights.
DeepSeek V4 Flash High Preview: open weights.
General LLM: As of Oct 14, 2026, Claude Opus 4.8 leads DeepSeek V4 Flash High Preview in General LLM at #20 against #71.
Reasoning: As of Oct 14, 2026, Claude Opus 4.8 leads DeepSeek V4 Flash High Preview in Reasoning at #10 against #74.
Coding › Web dev: As of Oct 14, 2026, Claude Opus 4.8 leads DeepSeek V4 Flash High Preview in Coding › Web dev at #33 against #65.
Long context: As of Oct 14, 2026, Claude Opus 4.8 leads DeepSeek V4 Flash High Preview in Long context at #10 against #68.
Factuality: As of Oct 14, 2026, Claude Opus 4.8 leads DeepSeek V4 Flash High Preview in Factuality at #21 against #77.
Claude Opus 4.8 · DeepSeek V4 Flash High Preview
Claude Opus 4.8 or DeepSeek V4 Flash High Preview?
As of Oct 14, 2026, Claude Opus 4.8 leads DeepSeek V4 Flash High Preview in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Opus 4.8 or DeepSeek V4 Flash High Preview for General LLM?
As of Oct 14, 2026, Claude Opus 4.8 leads DeepSeek V4 Flash High Preview in General LLM at #20 against #71.
Claude Opus 4.8 or DeepSeek V4 Flash High Preview for Reasoning?
As of Oct 14, 2026, Claude Opus 4.8 leads DeepSeek V4 Flash High Preview in Reasoning at #10 against #74.
Claude Opus 4.8 or DeepSeek V4 Flash High Preview for Coding › Web dev?
As of Oct 14, 2026, Claude Opus 4.8 leads DeepSeek V4 Flash High Preview in Coding › Web dev at #33 against #65.