DeepSeek V4.1 Flash vs Gemini 2.5 Pro
As of Oct 15, 2026, DeepSeek V4.1 Flash leads Gemini 2.5 Pro in 7 of 7 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, Factuality, and Abstraction (ARC).
DeepSeek V4.1 Flash
Yes. Yes on General LLM (best per dollar); Reasoning (best per dollar). Not the overall leader.
Gemini 2.5 Pro
It used to be. Was SOTA in General LLM.
| Category | DeepSeek V4.1 Flash | Gemini 2.5 Pro |
|---|---|---|
| General LLM | #32 · #32 in General LLM Margin 17.02127659574468 LMArena leaderboard dataset · Oct 13, 2026 | #78 · Was SOTA · General LLM Margin 41.48936170212766 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #29 · #29 in Reasoning Margin 15.957446808510639 LMArena leaderboard dataset · Oct 13, 2026 | #92 · Was SOTA · Reasoning Margin 49.46808510638298 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 | #58 · #58 in Science Margin — Epoch AI benchmarking hub · Jun 17, 2025 |
| Coding | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Web dev | #21 · #21 in Coding › Web dev Margin 16 LMArena leaderboard dataset · Oct 13, 2026 | #119 · #119 in Coding › Web dev Margin 94.4 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #37 · #37 in Long context Margin 19.68085106382979 LMArena leaderboard dataset · Oct 13, 2026 | #72 · Was SOTA · Long context Margin 38.297872340425535 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #21 · #21 in Vision Margin 57.89473684210526 Epoch AI benchmarking hub · Sep 9, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #25 · #25 in Factuality Margin 15.116279069767444 LMArena leaderboard dataset · Oct 13, 2026 | #37 · #37 in Factuality Margin 22.093023255813947 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #8 · #8 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 9, 2026 | #48 · #48 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jun 17, 2025 |
DeepSeek V4.1 Flash: $0.23463 per 1M blended tokens.
Gemini 2.5 Pro: $3.4375000000000004 per 1M blended tokens.
DeepSeek V4.1 Flash: open weights.
Gemini 2.5 Pro: closed weights.
General LLM: As of Oct 15, 2026, DeepSeek V4.1 Flash leads Gemini 2.5 Pro in General LLM at #32 against #78.
Reasoning: As of Oct 15, 2026, DeepSeek V4.1 Flash leads Gemini 2.5 Pro in Reasoning at #29 against #92.
Science: As of Oct 15, 2026, DeepSeek V4.1 Flash leads Gemini 2.5 Pro in Science at #36 against #58.
Coding › Web dev: As of Oct 15, 2026, DeepSeek V4.1 Flash leads Gemini 2.5 Pro in Coding › Web dev at #21 against #119.
Long context: As of Oct 15, 2026, DeepSeek V4.1 Flash leads Gemini 2.5 Pro in Long context at #37 against #72.
Factuality: As of Oct 15, 2026, DeepSeek V4.1 Flash leads Gemini 2.5 Pro in Factuality at #25 against #37.
Abstraction (ARC): As of Oct 15, 2026, DeepSeek V4.1 Flash leads Gemini 2.5 Pro in Abstraction (ARC) at #8 against #48.
DeepSeek V4.1 Flash · Gemini 2.5 Pro
DeepSeek V4.1 Flash or Gemini 2.5 Pro?
As of Oct 15, 2026, DeepSeek V4.1 Flash leads Gemini 2.5 Pro in 7 of 7 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, Factuality, and Abstraction (ARC).
DeepSeek V4.1 Flash or Gemini 2.5 Pro for General LLM?
As of Oct 15, 2026, DeepSeek V4.1 Flash leads Gemini 2.5 Pro in General LLM at #32 against #78.
DeepSeek V4.1 Flash or Gemini 2.5 Pro for Reasoning?
As of Oct 15, 2026, DeepSeek V4.1 Flash leads Gemini 2.5 Pro in Reasoning at #29 against #92.
DeepSeek V4.1 Flash or Gemini 2.5 Pro for Science?
As of Oct 15, 2026, DeepSeek V4.1 Flash leads Gemini 2.5 Pro in Science at #36 against #58.