DeepSeek V4.1 Flash vs GPT-5.6 Terra
As of Oct 15, 2026, DeepSeek V4.1 Flash leads GPT-5.6 Terra in 5 of 8 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
DeepSeek V4.1 Flash
Yes. Yes on General LLM (best per dollar); Reasoning (best per dollar). Not the overall leader.
GPT-5.6 Terra
#4 Best recorded rank: #4 in Abstraction (ARC), as of Oct 15, 2026.
| Category | DeepSeek V4.1 Flash | GPT-5.6 Terra |
|---|---|---|
| General LLM | #32 · #32 in General LLM Margin 17.02127659574468 LMArena leaderboard dataset · Oct 13, 2026 | #44 · #44 in General LLM Margin 23.40425531914893 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #29 · #29 in Reasoning Margin 15.957446808510639 LMArena leaderboard dataset · Oct 13, 2026 | #41 · #41 in Reasoning Margin 22.34042553191489 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 | #15 · #15 in Science Margin — Epoch AI benchmarking hub · Jul 9, 2026 |
| Coding | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #13 · #13 in Coding Margin 63.63636363636363 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | — | #13 · #13 in Coding › Agentic Margin 63.63636363636363 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Web dev | #21 · #21 in Coding › Web dev Margin 16 LMArena leaderboard dataset · Oct 13, 2026 | #44 · #44 in Coding › Web dev Margin 34.400000000000006 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #37 · #37 in Long context Margin 19.68085106382979 LMArena leaderboard dataset · Oct 13, 2026 | #54 · #54 in Long context Margin 28.723404255319153 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #21 · #21 in Vision Margin 57.89473684210526 Epoch AI benchmarking hub · Sep 9, 2026 | #11 · #11 in Vision Margin 31.578947368421055 Epoch AI benchmarking hub · Jul 9, 2026 |
| Factuality | #25 · #25 in Factuality Margin 15.116279069767444 LMArena leaderboard dataset · Oct 13, 2026 | #28 · #28 in Factuality Margin 16.860465116279073 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #8 · #8 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 9, 2026 | #4 · #4 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 9, 2026 |
DeepSeek V4.1 Flash: $0.23463 per 1M blended tokens.
GPT-5.6 Terra: $4.5 per 1M blended tokens.
DeepSeek V4.1 Flash: open weights.
GPT-5.6 Terra: closed weights.
General LLM: As of Oct 15, 2026, DeepSeek V4.1 Flash leads GPT-5.6 Terra in General LLM at #32 against #44.
Reasoning: As of Oct 15, 2026, DeepSeek V4.1 Flash leads GPT-5.6 Terra in Reasoning at #29 against #41.
Science: As of Oct 15, 2026, GPT-5.6 Terra leads DeepSeek V4.1 Flash in Science at #15 against #36.
Coding › Web dev: As of Oct 15, 2026, DeepSeek V4.1 Flash leads GPT-5.6 Terra in Coding › Web dev at #21 against #44.
Long context: As of Oct 15, 2026, DeepSeek V4.1 Flash leads GPT-5.6 Terra in Long context at #37 against #54.
Vision: As of Oct 15, 2026, GPT-5.6 Terra leads DeepSeek V4.1 Flash in Vision at #11 against #21.
Factuality: As of Oct 15, 2026, DeepSeek V4.1 Flash leads GPT-5.6 Terra in Factuality at #25 against #28.
Abstraction (ARC): As of Oct 15, 2026, GPT-5.6 Terra leads DeepSeek V4.1 Flash in Abstraction (ARC) at #4 against #8.
DeepSeek V4.1 Flash · GPT-5.6 Terra
DeepSeek V4.1 Flash or GPT-5.6 Terra?
As of Oct 15, 2026, DeepSeek V4.1 Flash leads GPT-5.6 Terra in 5 of 8 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
DeepSeek V4.1 Flash or GPT-5.6 Terra for General LLM?
As of Oct 15, 2026, DeepSeek V4.1 Flash leads GPT-5.6 Terra in General LLM at #32 against #44.
DeepSeek V4.1 Flash or GPT-5.6 Terra for Reasoning?
As of Oct 15, 2026, DeepSeek V4.1 Flash leads GPT-5.6 Terra in Reasoning at #29 against #41.
DeepSeek V4.1 Flash or GPT-5.6 Terra for Science?
As of Oct 15, 2026, GPT-5.6 Terra leads DeepSeek V4.1 Flash in Science at #15 against #36.