DeepSeek V4.1 Flash vs Grok 4.5
As of Oct 14, 2026, DeepSeek V4.1 Flash leads Grok 4.5 in 7 of 8 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, Vision, Factuality, and Abstraction (ARC).
DeepSeek V4.1 Flash
Yes. Yes on General LLM (best per dollar); Factuality (best per dollar). Not the overall leader.
Grok 4.5
#14 Best recorded rank: #14 in Science, as of Oct 14, 2026.
| Category | DeepSeek V4.1 Flash | Grok 4.5 |
|---|---|---|
| General LLM | #29 · #29 in General LLM Margin 19.72789115646259 LMArena leaderboard dataset · Oct 13, 2026 | #36 · #36 in General LLM Margin 24.48979591836735 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #27 · #27 in Reasoning Margin 19.178082191780817 LMArena leaderboard dataset · Oct 13, 2026 | #37 · #37 in Reasoning Margin 26.027397260273972 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 | #36 · #36 in Science Margin — Epoch AI benchmarking hub · Sep 9, 2026 | #14 · #14 in Science Margin — Epoch AI benchmarking hub · Jul 8, 2026 |
| Coding | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #19 · #19 in Coding Margin 95.45454545454545 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | — | #19 · #19 in Coding › Agentic Margin 95.45454545454545 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Web dev | #19 · #19 in Coding › Web dev Margin 16.822429906542055 LMArena leaderboard dataset · Oct 13, 2026 | #34 · #34 in Coding › Web dev Margin 30.8411214953271 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #32 · #32 in Long context Margin 21.768707482993193 LMArena leaderboard dataset · Oct 13, 2026 | #35 · #35 in Long context Margin 23.80952380952381 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #21 · #21 in Vision Margin 57.89473684210526 Epoch AI benchmarking hub · Sep 9, 2026 | #29 · #29 in Vision Margin 86.84210526315789 Epoch AI benchmarking hub · Jul 8, 2026 |
| Factuality | #22 · #22 in Factuality Margin 17.164179104477626 LMArena leaderboard dataset · Oct 13, 2026 | #26 · #26 in Factuality Margin 20.14925373134328 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #8 · #8 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 9, 2026 | #21 · #21 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 8, 2026 |
DeepSeek V4.1 Flash: $0.23787 per 1M blended tokens.
Grok 4.5: $3 per 1M blended tokens.
DeepSeek V4.1 Flash: open weights.
Grok 4.5: closed weights.
General LLM: As of Oct 14, 2026, DeepSeek V4.1 Flash leads Grok 4.5 in General LLM at #29 against #36.
Reasoning: As of Oct 14, 2026, DeepSeek V4.1 Flash leads Grok 4.5 in Reasoning at #27 against #37.
Science: As of Oct 14, 2026, Grok 4.5 leads DeepSeek V4.1 Flash in Science at #14 against #36.
Coding › Web dev: As of Oct 14, 2026, DeepSeek V4.1 Flash leads Grok 4.5 in Coding › Web dev at #19 against #34.
Long context: As of Oct 14, 2026, DeepSeek V4.1 Flash leads Grok 4.5 in Long context at #32 against #35.
Vision: As of Oct 14, 2026, DeepSeek V4.1 Flash leads Grok 4.5 in Vision at #21 against #29.
Factuality: As of Oct 14, 2026, DeepSeek V4.1 Flash leads Grok 4.5 in Factuality at #22 against #26.
Abstraction (ARC): As of Oct 14, 2026, DeepSeek V4.1 Flash leads Grok 4.5 in Abstraction (ARC) at #8 against #21.
DeepSeek V4.1 Flash · Grok 4.5
DeepSeek V4.1 Flash or Grok 4.5?
As of Oct 14, 2026, DeepSeek V4.1 Flash leads Grok 4.5 in 7 of 8 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, Vision, Factuality, and Abstraction (ARC).
DeepSeek V4.1 Flash or Grok 4.5 for General LLM?
As of Oct 14, 2026, DeepSeek V4.1 Flash leads Grok 4.5 in General LLM at #29 against #36.
DeepSeek V4.1 Flash or Grok 4.5 for Reasoning?
As of Oct 14, 2026, DeepSeek V4.1 Flash leads Grok 4.5 in Reasoning at #27 against #37.
DeepSeek V4.1 Flash or Grok 4.5 for Science?
As of Oct 14, 2026, Grok 4.5 leads DeepSeek V4.1 Flash in Science at #14 against #36.